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4 commits

Author SHA1 Message Date
Varun Sharma
fc9d972ad4 Merge branch 'rc-v2.6.1' into markdown 2023-10-27 15:26:34 -07:00
Varun Sharma
0827586e44 Update markdown 2023-10-27 13:37:20 -07:00
Varun Sharma
f5cfd3fe85 Update markdown 2023-10-27 13:19:55 -07:00
jatin
abb3730f28
Add k8s-mode detection (#345) 2023-10-27 12:58:37 -07:00
64 changed files with 118602 additions and 138307 deletions

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@ -22,7 +22,7 @@ jobs:
permissions: permissions:
contents: write contents: write
steps: steps:
- uses: step-security/harden-runner@5c7944e73c4c2a096b17a9cb74d65b6c2bbafbde # v1 - uses: step-security/harden-runner@1b05615854632b887b69ae1be8cbefe72d3ae423 # v1
with: with:
egress-policy: audit egress-policy: audit
allowed-endpoints: allowed-endpoints:
@ -41,9 +41,3 @@ jobs:
env: env:
PAT: ${{ secrets.PAT }} PAT: ${{ secrets.PAT }}
canary: true canary: true
- name: Canary TLS test
uses: docker://ghcr.io/step-security/integration-test/int:latest
env:
PAT: ${{ secrets.PAT }}
canary-tls: true

23
.github/workflows/code-review.yml vendored Normal file
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@ -0,0 +1,23 @@
name: Code Review
on:
pull_request:
permissions:
contents: read
jobs:
code-review:
runs-on: ubuntu-latest
permissions:
contents: read
pull-requests: read
steps:
- name: Harden Runner
uses: step-security/harden-runner@1b05615854632b887b69ae1be8cbefe72d3ae423 # v2.6.0
with:
disable-sudo: true
egress-policy: block
allowed-endpoints: >
api.github.com:443
int.api.stepsecurity.io:443
- name: Code Review
uses: step-security/ai-codewise@int

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@ -41,7 +41,7 @@ jobs:
steps: steps:
- name: Harden Runner - name: Harden Runner
uses: step-security/harden-runner@5c7944e73c4c2a096b17a9cb74d65b6c2bbafbde uses: step-security/harden-runner@1b05615854632b887b69ae1be8cbefe72d3ae423
with: with:
egress-policy: audit # TODO: change to 'egress-policy: block' after couple of runs egress-policy: audit # TODO: change to 'egress-policy: block' after couple of runs
@ -50,7 +50,7 @@ jobs:
# Initializes the CodeQL tools for scanning. # Initializes the CodeQL tools for scanning.
- name: Initialize CodeQL - name: Initialize CodeQL
uses: github/codeql-action/init@2d790406f505036ef40ecba973cc774a50395aac uses: github/codeql-action/init@cdcdbb579706841c47f7063dda365e292e5cad7a
with: with:
languages: ${{ matrix.language }} languages: ${{ matrix.language }}
# If you wish to specify custom queries, you can do so here or in a config file. # If you wish to specify custom queries, you can do so here or in a config file.
@ -61,7 +61,7 @@ jobs:
# Autobuild attempts to build any compiled languages (C/C++, C#, or Java). # Autobuild attempts to build any compiled languages (C/C++, C#, or Java).
# If this step fails, then you should remove it and run the build manually (see below) # If this step fails, then you should remove it and run the build manually (see below)
- name: Autobuild - name: Autobuild
uses: github/codeql-action/autobuild@2d790406f505036ef40ecba973cc774a50395aac uses: github/codeql-action/autobuild@cdcdbb579706841c47f7063dda365e292e5cad7a
# Command-line programs to run using the OS shell. # Command-line programs to run using the OS shell.
# 📚 https://git.io/JvXDl # 📚 https://git.io/JvXDl
@ -75,4 +75,4 @@ jobs:
# make release # make release
- name: Perform CodeQL Analysis - name: Perform CodeQL Analysis
uses: github/codeql-action/analyze@2d790406f505036ef40ecba973cc774a50395aac uses: github/codeql-action/analyze@cdcdbb579706841c47f7063dda365e292e5cad7a

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@ -17,11 +17,11 @@ jobs:
runs-on: ubuntu-latest runs-on: ubuntu-latest
steps: steps:
- name: Harden Runner - name: Harden Runner
uses: step-security/harden-runner@5c7944e73c4c2a096b17a9cb74d65b6c2bbafbde # v2.9.1 uses: step-security/harden-runner@1b05615854632b887b69ae1be8cbefe72d3ae423 # v2.6.0
with: with:
egress-policy: audit egress-policy: audit
- name: 'Checkout Repository' - name: 'Checkout Repository'
uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1 uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
- name: 'Dependency Review' - name: 'Dependency Review'
uses: actions/dependency-review-action@0c155c5e8556a497adf53f2c18edabf945ed8e70 # v4.3.2 uses: actions/dependency-review-action@6c5ccdad469c9f8a2996bfecaec55a631a347034 # v3.1.0

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@ -1,28 +0,0 @@
name: 'Publish Immutable Action Version'
on:
release:
types: [published]
permissions:
contents: read
jobs:
publish:
runs-on: ubuntu-latest
permissions:
contents: read
id-token: write
packages: write
steps:
- name: Harden the runner (Audit all outbound calls)
uses: step-security/harden-runner@cb605e52c26070c328afc4562f0b4ada7618a84e # v2.10.4
with:
egress-policy: audit
- name: Checking out
uses: actions/checkout@v4
- name: Publish
id: publish
uses: actions/publish-immutable-action@0.0.4

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@ -13,7 +13,7 @@ jobs:
runs-on: ubuntu-latest runs-on: ubuntu-latest
steps: steps:
- name: Harden Runner - name: Harden Runner
uses: step-security/harden-runner@5c7944e73c4c2a096b17a9cb74d65b6c2bbafbde uses: step-security/harden-runner@1b05615854632b887b69ae1be8cbefe72d3ae423
with: with:
egress-policy: audit # TODO: change to 'egress-policy: block' after couple of runs egress-policy: audit # TODO: change to 'egress-policy: block' after couple of runs
@ -22,18 +22,3 @@ jobs:
env: env:
PAT: ${{ secrets.PAT }} PAT: ${{ secrets.PAT }}
canary: true canary: true
int-tls-tests:
name: int tls tests
runs-on: ubuntu-latest
steps:
- name: Harden Runner
uses: step-security/harden-runner@5c7944e73c4c2a096b17a9cb74d65b6c2bbafbde
with:
egress-policy: audit # TODO: change to 'egress-policy: block' after couple of runs
- name: Canary test
uses: docker://ghcr.io/step-security/integration-test/int:latest
env:
PAT: ${{ secrets.PAT }}
canary-tls: true

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@ -25,7 +25,7 @@ jobs:
permissions: permissions:
contents: write contents: write
steps: steps:
- uses: step-security/harden-runner@5c7944e73c4c2a096b17a9cb74d65b6c2bbafbde - uses: step-security/harden-runner@1b05615854632b887b69ae1be8cbefe72d3ae423
with: with:
egress-policy: audit egress-policy: audit
allowed-endpoints: allowed-endpoints:

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@ -1,179 +0,0 @@
name: RunsOn Tests
on:
workflow_dispatch:
permissions:
contents: read
jobs:
test-host-outbound:
runs-on:
- runs-on=${{ github.run_id }}
- runner=2cpu-linux-x64
- image=ubuntu24-stepsecurity-x64
steps:
- name: Harden Runner
uses: step-security/harden-runner@rc
with:
egress-policy: audit
allowed-endpoints: >
github.com:443
goreleaser.com:443
- name: Checkout code
uses: actions/checkout@v3
- name: Run outbound calls from host
run: |
start_time=$(date +%s)
end_time=$((start_time + 90)) # 5 minutes = 300 seconds
while [ $(date +%s) -lt $end_time ]; do
curl -I https://www.google.com
curl -I https://goreleaser.com
sleep 10 # wait 10 seconds between calls
done
test-docker-outbound:
runs-on:
- runs-on=${{ github.run_id }}
- runner=2cpu-linux-x64
- image=ubuntu24-stepsecurity-x64
steps:
- name: Harden Runner
uses: step-security/harden-runner@rc
with:
egress-policy: block
allowed-endpoints: >
archive.ubuntu.com:80
github.com:443
goreleaser.com:443
production.cloudflare.docker.com:443
docker-images-prod.6aa30f8b08e16409b46e0173d6de2f56.r2.cloudflarestorage.com:443
*.docker.io:443
security.ubuntu.com:80
- name: Checkout code
uses: actions/checkout@v3
- name: Run outbound calls from within Docker container
continue-on-error: true
run: |
# Start the container
docker run --rm -d --name test-container ubuntu:latest sleep 90
# Install curl in the container
docker exec test-container apt-get update
docker exec test-container apt-get install -y curl
# Print /etc/resolv.conf from the container
docker exec test-container cat /etc/resolv.conf
# Make outbound calls
for i in {1..9}; do
docker exec test-container curl -I https://www.google.com
docker exec test-container curl -I https://goreleaser.com
sleep 10 # wait 10 seconds between calls
done
# Stop the container
docker stop test-container
test-docker-build-outbound:
runs-on:
- runs-on=${{ github.run_id }}
- runner=2cpu-linux-x64
- image=ubuntu24-stepsecurity-x64
steps:
- name: Harden Runner
uses: step-security/harden-runner@rc
with:
egress-policy: audit
allowed-endpoints: >
archive.ubuntu.com:80
auth.docker.io:443
github.com:443
goreleaser.com:443
production.cloudflare.docker.com:443
docker-images-prod.6aa30f8b08e16409b46e0173d6de2f56.r2.cloudflarestorage.com:443
registry-1.docker.io:443
security.ubuntu.com:80
- name: Checkout code
uses: actions/checkout@v3
- name: Build Docker image and test outbound calls during build
continue-on-error: true
run: |
# Create a Dockerfile that installs curl and makes outbound calls
cat <<EOF > Dockerfile
FROM ubuntu:latest
RUN apt-get update && apt-get install -y curl
RUN for i in {1..9}; do curl -I https://www.google.com && curl -I https://goreleaser.com; sleep 10; done
EOF
# Build the Docker image
docker build -t test-image .
# Print /etc/resolv.conf from the build container (temporary container used during build)
container_id=$(docker create test-image)
docker start $container_id
docker exec $container_id cat /etc/resolv.conf
docker stop $container_id
docker rm $container_id
- name: Print Docker logs with journalctl
run: |
sudo journalctl -u docker.service --no-pager
shell: bash
test-long-running-docker:
runs-on:
- runs-on=${{ github.run_id }}
- runner=2cpu-linux-x64
- image=ubuntu24-stepsecurity-x64
steps:
- name: Harden Runner
uses: step-security/harden-runner@rc
with:
egress-policy: block
allowed-endpoints: >
archive.ubuntu.com:80
auth.docker.io:443
github.com:443
goreleaser.com:443
production.cloudflare.docker.com:443
registry-1.docker.io:443
docker-images-prod.6aa30f8b08e16409b46e0173d6de2f56.r2.cloudflarestorage.com:443
security.ubuntu.com:80
- name: Checkout code
uses: actions/checkout@v3
- name: Run long-running Docker container with outbound calls
continue-on-error: true
run: |
# Start the long-running container
docker run --rm -d --name long-running-container ubuntu:latest bash -c "
apt-get update && apt-get install -y curl &&
while true; do
curl -I https://www.google.com;
curl -I https://goreleaser.com;
sleep 10;
done
"
# Print /etc/resolv.conf from the container
docker exec long-running-container cat /etc/resolv.conf
# Let the container run for 5 minutes
sleep 90
# Stop the container
docker stop long-running-container

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@ -25,7 +25,7 @@ jobs:
steps: steps:
- name: Harden Runner - name: Harden Runner
uses: step-security/harden-runner@5c7944e73c4c2a096b17a9cb74d65b6c2bbafbde # v2.9.1 uses: step-security/harden-runner@1b05615854632b887b69ae1be8cbefe72d3ae423 # v2.6.0
with: with:
egress-policy: audit egress-policy: audit
@ -35,7 +35,7 @@ jobs:
persist-credentials: false persist-credentials: false
- name: "Run analysis" - name: "Run analysis"
uses: ossf/scorecard-action@62b2cac7ed8198b15735ed49ab1e5cf35480ba46 # tag=v1.1.1 uses: ossf/scorecard-action@0864cf19026789058feabb7e87baa5f140aac736 # tag=v1.1.1
with: with:
results_file: results.sarif results_file: results.sarif
results_format: sarif results_format: sarif
@ -54,7 +54,7 @@ jobs:
# Upload the results as artifacts (optional). Commenting out will disable uploads of run results in SARIF # Upload the results as artifacts (optional). Commenting out will disable uploads of run results in SARIF
# format to the repository Actions tab. # format to the repository Actions tab.
- name: "Upload artifact" - name: "Upload artifact"
uses: actions/upload-artifact@4cec3d8aa04e39d1a68397de0c4cd6fb9dce8ec1 # tag=v4.6.1 uses: actions/upload-artifact@a8a3f3ad30e3422c9c7b888a15615d19a852ae32 # tag=v3.0.0
with: with:
name: SARIF file name: SARIF file
path: results.sarif path: results.sarif
@ -62,6 +62,6 @@ jobs:
# Upload the results to GitHub's code scanning dashboard. # Upload the results to GitHub's code scanning dashboard.
- name: "Upload to code-scanning" - name: "Upload to code-scanning"
uses: github/codeql-action/upload-sarif@2d790406f505036ef40ecba973cc774a50395aac # tag=v1.0.26 uses: github/codeql-action/upload-sarif@cdcdbb579706841c47f7063dda365e292e5cad7a # tag=v1.0.26
with: with:
sarif_file: results.sarif sarif_file: results.sarif

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@ -13,13 +13,10 @@ concurrency:
group: ${{ github.workflow }} group: ${{ github.workflow }}
jobs: jobs:
test: test:
permissions:
checks: write
pull-requests: write
runs-on: ubuntu-latest runs-on: ubuntu-latest
steps: steps:
- name: Harden Runner - name: Harden Runner
uses: step-security/harden-runner@5c7944e73c4c2a096b17a9cb74d65b6c2bbafbde # v2.9.1 uses: step-security/harden-runner@1b05615854632b887b69ae1be8cbefe72d3ae423 # v2.6.0
with: with:
disable-sudo: true disable-sudo: true
egress-policy: audit egress-policy: audit
@ -38,38 +35,3 @@ jobs:
- name: Run coverage - name: Run coverage
run: npm test -- --coverage run: npm test -- --coverage
- uses: codecov/codecov-action@eaaf4bedf32dbdc6b720b63067d99c4d77d6047d # v3.1.4 - uses: codecov/codecov-action@eaaf4bedf32dbdc6b720b63067d99c4d77d6047d # v3.1.4
- name: Publish Test Results
uses: step-security/publish-unit-test-result-action@e88bfc6c0dffc68a1067d63526c80c81f248da11 # v2.20.0
if: always()
with:
files: |
reports/*.xml
build-check:
runs-on: ubuntu-latest
steps:
- name: Harden Runner
uses: step-security/harden-runner@5c7944e73c4c2a096b17a9cb74d65b6c2bbafbde # v2.9.1
with:
disable-sudo: true
egress-policy: audit
allowed-endpoints: >
github.com:443
registry.npmjs.org:443
- name: Checkout
uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
- name: Install Dependencies
run: npm ci
- name: Run build
run: npm run build
- name: Check for changes in dist
run: |
if [[ `git status --porcelain dist` ]]; then
echo "Changes detected in dist directory after build:"
git status --porcelain dist
git diff dist
exit 1
else
echo "No changes in dist directory - build is clean"
fi

1
.gitignore vendored
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@ -20,7 +20,6 @@ lib-cov
# Coverage directory used by tools like istanbul # Coverage directory used by tools like istanbul
coverage coverage
reports
*.lcov *.lcov
# nyc test coverage # nyc test coverage

268
README.md
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@ -1,7 +1,7 @@
<p align="center"> <p align="center">
<picture> <picture>
<source media="(prefers-color-scheme: light)" srcset="images/harden-runner-new.png" width="400"> <source media="(prefers-color-scheme: light)" srcset="images/banner.png" width="400">
<img alt="Dark Banner" src="images/harden-runner-new.png" width="400"> <img alt="Dark Banner" src="images/banner-dark.png" width="400">
</picture> </picture>
</p> </p>
@ -13,185 +13,207 @@
</div> </div>
# Harden-Runner ## GitHub Actions Runtime Security
Corporate laptops and production servers typically have robust security monitoring in place to reduce risk and meet compliance requirements. However, CI/CD runners, which handle sensitive information like secrets for cloud environments and create production builds, often lack such security measures. This oversight has led to significant supply chain attacks, including the SolarWinds and Codecov breaches. Harden-Runner provides runtime security for GitHub-hosted and self-hosted environments.
Traditional security monitoring and EDR solutions are ineffective for CI/CD runners due to their ephemeral nature. These tools also lack the necessary context to correlate events with specific workflow runs in a CI/CD environment. For self-hosted environments, Harden-Runner supports:
StepSecurity Harden-Runner addresses this gap by providing security monitoring tailored for CI/CD runners, with support for Linux, Windows, and macOS runners. This approach brings CI/CD runners under the same level of security scrutiny as other critical systems, addressing a significant gap in the software supply chain. 1. Kubernetes runners setup using Actions Runner Controller (ARC)
### Harden-Runner: Security Incidents Detected 2. Virtual Machine runners (e.g. on EC2) - both ephemeral and persistent runners are supported
- [Harden-Runner Detected the Compromised axios npm Package Dropping a Remote Access Trojan](https://www.stepsecurity.io/blog/axios-compromised-on-npm-malicious-versions-drop-remote-access-trojan) ([backstage/backstage#33693](https://github.com/backstage/backstage/issues/33693), [block/elasticgraph#1103](https://github.com/block/elasticgraph/issues/1103)) [![Harden Runner Demo](images/RuntimeSecurityDemo.gif)](https://youtu.be/fpdwX5hYACo)
- [Harden-Runner Detected the Trivy Compromise with Malicious v0.69.4 Release](https://www.stepsecurity.io/blog/trivy-compromised-a-second-time---malicious-v0-69-4-release) ([k8gb-io/k8gb#2294](https://github.com/k8gb-io/k8gb/issues/2294))
- [Harden-Runner Detected the tj-actions/changed-files compromise](https://www.stepsecurity.io/blog/harden-runner-detection-tj-actions-changed-files-action-is-compromised) ([CVE-2025-30066](https://github.com/advisories/GHSA-mrrh-fwg8-r2c3))
- [Harden Runner Detected the Sha1-Hulud Supply Chain Attack in CNCFs Backstage Repository](https://www.stepsecurity.io/blog/how-harden-runner-detected-the-sha1-hulud-supply-chain-attack-in-cncfs-backstage-repository)
- [Harden-Runner Detected the NX Build System compromise](https://www.stepsecurity.io/blog/supply-chain-security-alert-popular-nx-build-system-package-compromised-with-data-stealing-malware)
- [Harden-Runner Detected a CI/CD Supply Chain Attack in Googles Open-Source Project Flank](https://www.stepsecurity.io/case-studies/flank)
- [Harden-Runner Detected a CI/CD Supply Chain Attack in Microsofts Open-Source Project Azure Karpenter Provider in Real-Time](https://www.stepsecurity.io/case-studies/azure-karpenter-provider)
- [Harden-Runner Detected Anomalous Traffic to api.ipify.org Across Multiple Customers](https://www.stepsecurity.io/blog/harden-runner-detects-anomalous-traffic-to-api-ipify-org-across-multiple-customers)
- [Harden-Runner Detected an Unexpected Microsoft Defender Installation on GitHub-Hosted Ubuntu Runners](https://www.stepsecurity.io/blog/how-stepsecurity-harden-runner-detected-unexpected-microsoft-defender-installation-on-github-hosted-ubuntu-runners)
- [Harden-Runner Flagged an Anomalous Outbound Call, Leading to a Docker Documentation Update](https://www.stepsecurity.io/blog/harden-runner-flags-anomalous-outbound-call-leading-to-docker-documentation-update)
### See It in Action ## Explore open source projects using Harden-Runner
Harden-Runner secures over **25 million CI/CD workflow runs every week**, protecting thousands of pipelines, including those from popular open-source projects by **Microsoft, Google, and CISA**. See how top projects are using Harden-Runner and explore the insights:
➡️ [Who's using Harden-Runner?](https://docs.stepsecurity.io/whos-using-harden-runner)
## Quick Links | [![CISA](https://avatars.githubusercontent.com/u/18539691?s=60&v=4)](https://app.stepsecurity.io/github/cisagov/skeleton-generic/actions/runs/6199340224) | [![Microsoft](https://avatars.githubusercontent.com/u/6154722?s=60&v=4)](https://app.stepsecurity.io/github/microsoft/ebpf-for-windows/actions/runs/5559160177) | [![Google](https://avatars.githubusercontent.com/u/2810941?s=60&v=4)](https://app.stepsecurity.io/github/GoogleCloudPlatform/functions-framework-ruby/actions/runs/5546354505) | [![DataDog](https://avatars.githubusercontent.com/u/365230?s=60&v=4)](https://app.stepsecurity.io/github/DataDog/stratus-red-team/actions/runs/5387101451) | [![Intel](https://avatars.githubusercontent.com/u/17888862?s=60&v=4)](https://app.stepsecurity.io/github/intel/cve-bin-tool/actions/runs/5579910614) | [![Kubernetes](https://avatars.githubusercontent.com/u/36015203?s=60&v=4)](https://app.stepsecurity.io/github/kubernetes-sigs/cluster-api-provider-azure/actions/runs/5581511101) | [![Node.js](https://avatars.githubusercontent.com/u/9950313?s=60&v=4)](https://app.stepsecurity.io/github/nodejs/node/actions/runs/5563468674) | [![Mastercard](https://avatars.githubusercontent.com/u/1653148?s=60&v=4)](https://app.stepsecurity.io/github/Mastercard/flow/actions/runs/5542112873) |
- [Getting Started Guide](#getting-started) | --------------------------------------------------------------------------------------------------------------------------------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | ---------------------------------------------------------------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------- |
- [Why Choose Harden-Runner](#why-choose-harden-runner) | **CISA**<br>[Explore](https://app.stepsecurity.io/github/cisagov/skeleton-generic/actions/runs/6199340224) | **Microsoft**<br>[Explore](https://app.stepsecurity.io/github/microsoft/ebpf-for-windows/actions/runs/5559160177) | **Google**<br>[Explore](https://app.stepsecurity.io/github/GoogleCloudPlatform/functions-framework-ruby/actions/runs/5546354505) | **DataDog**<br>[Explore](https://app.stepsecurity.io/github/DataDog/stratus-red-team/actions/runs/5387101451) | **Intel**<br>[Explore](https://app.stepsecurity.io/github/intel/cve-bin-tool/actions/runs/5579910614) | **Kubernetes**<br>[Explore](https://app.stepsecurity.io/github/kubernetes-sigs/cluster-api-provider-azure/actions/runs/5581511101) | **Node.js**<br>[Explore](https://app.stepsecurity.io/github/nodejs/node/actions/runs/5563468674) | **Mastercard**<br>[Explore](https://app.stepsecurity.io/github/Mastercard/flow/actions/runs/5542112873) |
- [Features and Capabilities](#features)
- [Case Studies and Trusted Projects](#trusted-by-and-case-studies)
- [Environment Compatibility Matrix](#environment-compatibility-matrix)
- [How It Works](docs/how-it-works.md)
- [Known Limitations](docs/limitations.md)
- [Join the Discussions](#discussions)
- [Official Documentation](https://docs.stepsecurity.io/harden-runner)
--- ## Hands-On Tutorials
## Introduction You can use [GitHub Actions Goat](https://github.com/step-security/github-actions-goat) to try Harden-Runner. You only need a GitHub Account and a web browser.
Learn how Harden-Runner works through the video below, which shows how it detected the tj-actions/changed-files compromise. [View the interactive demo here](https://app.storylane.io/share/679y2zgzljov). Hands-on Tutorials for GitHub Actions Runtime Security:
<a href="https://www.youtube.com/watch?v=oTAJ7Hy7nPU" target="_blank"> 1. [Filter Egress Network Traffic](https://github.com/step-security/github-actions-goat/blob/main/docs/Solutions/RestrictOutboundTraffic.md)
<img src="images/case-study.png" alt="Harden-Runner detected the tj-actions/changed-files Breach" title="This case study video shows how StepSecurity Harden-Runner detected the tj-actions/changed-files Breach"> 2. [Detect File Tampering](https://github.com/step-security/github-actions-goat/blob/main/docs/Solutions/MonitorSourceCode.md)
</a>
--- ## Why
## Getting Started
This guide walks you through the steps to set up and use Harden-Runner in your CI/CD workflows. For more details, refer to the [official documentation](https://docs.stepsecurity.io/harden-runner). Compromised workflows, dependencies, and build tools typically make outbound calls to exfiltrate credentials, or may tamper source code, dependencies, or artifacts during the build.
### **Step 1: Add Harden-Runner to Your Workflow** Harden-Runner monitors process, file, and network activity to:
To integrate Harden-Runner, follow these steps: | | Countermeasure | Prevent Security Breach |
| --- | ----------------------------------------------------------------------------------------------------------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| 1. | Block egress traffic at the DNS (Layer 7) and network layers (Layers 3 and 4) to prevent exfiltration of code and CI/CD credentials | To prevent [Codecov breach](https://github.com/step-security/github-actions-goat/blob/main/docs/Vulnerabilities/ExfiltratingCICDSecrets.md) scenario |
| 2. | Detect if source code is being tampered during the build process to inject a backdoor | To detect [SolarWinds incident](https://github.com/step-security/github-actions-goat/blob/main/docs/Vulnerabilities/TamperingDuringBuild.md) scenario |
| 3. | Detect poisoned workflows and compromised dependencies | To detect [Dependency confusion](https://github.com/step-security/github-actions-goat/blob/main/docs/Vulnerabilities/ExfiltratingCICDSecrets.md#dependency-confusion-attacks) and [Malicious dependencies](https://github.com/step-security/github-actions-goat/blob/main/docs/Vulnerabilities/ExfiltratingCICDSecrets.md#compromised-dependencies) |
Read this [case study](https://infosecwriteups.com/detecting-malware-packages-in-github-actions-7b93a9985635) on how Harden-Runner detected malicious packages in the NPM registry.
## How
### GitHub-Hosted Runners
1. Add `step-security/harden-runner` GitHub Action to your GitHub Actions workflow file as the first step in each job.
- Open your GitHub Actions workflow file (e.g., `.github/workflows/<workflow-name>.yml`).
- Add the following code as the first step in each job:
```yaml ```yaml
steps: steps:
- name: Harden Runner - uses: step-security/harden-runner@1b05615854632b887b69ae1be8cbefe72d3ae423 # v2.6.0
uses: step-security/harden-runner@f808768d1510423e83855289c910610ca9b43176 # v2.17.0
with: with:
egress-policy: audit egress-policy: audit
```
**Tip**: Automate this step by pasting your workflow into the [StepSecurity online tool](https://app.stepsecurity.io/secure-workflow) 2. In the workflow logs and the job markdown summary, you will see a link to security insights and recommendations.
<details>
<summary>Click to view the full Getting Started Guide</summary>
### **Step 2: Access Security Insights** <p align="left">
<img src="images/buildlog1.png" alt="Link in build log" >
Run your workflow. Once completed:
- Review the **workflow logs** and the **job markdown summary**.
- Look for a link to **security insights and recommendations**.
<p align="left">
<img src="images/buildlog1.png" alt="Link in workflow log" >
</p>
- Click on the provided link (e.g., [example link](https://app.stepsecurity.io/github/step-security/github-actions-goat/actions/runs/7704454287?jobid=20996777560&tab=network-events)) to access the **Process Monitor View**, which displays:
- **Network events**: Outbound network calls correlated with each step.
- **File events**: File writes tracked during the job.
<p align="left">
<img src="images/network-events.png" alt="Link in network events" >
</p> </p>
</details> 3. Click on the link ([example link](https://app.stepsecurity.io/github/microsoft/msquic/actions/runs/5577342236)). You will see a process monitor view of network and file events correlated with each step of the job.
--- <p align="left">
## Why Choose Harden-Runner? <img src="images/insights-5.png" alt="Insights from harden-runner" >
</p>
- **Prevent Exfiltration:** Prevent the exfiltration of CI/CD secrets and source code. 4. Under the insights section, you'll find a Recommended Policy. You can either update your workflow file with this Policy, or alternatively, use the [Policy Store](https://docs.stepsecurity.io/harden-runner/how-tos/block-egress-traffic#2-add-the-policy-using-the-policy-store) to apply the policy without modifying the workflow file.
- **Detect Tampering:** Identify source code modifications during builds.
- **Anomaly Detection:** Spot unusual dependencies and workflow behaviors.
- **Simplify Permissions:** Determine the minimum required `GITHUB_TOKEN` permissions.
<p align="left">
<img src="images/rec-policy1.png" alt="Policy recommended by harden-runner" >
</p>
--- ### Self-Hosted Actions Runner Controller (ARC) Runners
## Features > Explore demo workflows using self-hosted ARC Runner and ARC Harden-Runner [here](https://docs.stepsecurity.io/harden-runner/how-tos/enable-runtime-security-arc).
Harden-Runner offers a comprehensive suite of features to enhance the security of your CI/CD workflows, available in two tiers: **Community** (Free) and **Enterprise** (Paid). Actions Runner Controller (ARC) is a Kubernetes operator that orchestrates and scales self-hosted runners for GitHub Actions.
### Community (Free) - Instead of adding the Harden-Runner GitHub Action in each workflow, you'll need to install the ARC Harden-Runner daemonset on your Kubernetes cluster.
- Upon installation, the ARC Harden-Runner daemonset constantly monitors each workflow run; you do NOT need to add the Harden-Runner GitHub Action to each job for `audit` mode. You do need to add the Harden-Runner GitHub Action for `block` mode.
- You can access security insights and runtime detections under the `Runtime Security` tab in your dashboard.
- **CI/CD-Aware Event Correlation:** Each outbound network connection, file operation, and process execution is mapped to the exact step, job, and workflow where it occurs. ### Self-Hosted VM Runners (e.g. on EC2)
- **Automated Baseline Creation:** Harden-Runner builds a baseline for each job based on past outbound network connections.
- **Anomaly Detection:** Once the baseline is created, any future outbound calls not in the baseline trigger a detection.
- **Block Network Egress Traffic with Domain Allowlist:** Optionally use the automatically created baseline to control outbound network traffic by specifying allowed domains, preventing unauthorized data exfiltration.
- **Detect Modification of Source Code:** Monitor and alert on unauthorized changes to your source code during the CI/CD pipeline.
### Enterprise (Paid) > Explore demo workflows using self-hosted VM Runners and Harden-Runner [here](https://docs.stepsecurity.io/harden-runner/how-tos/enable-runtime-security-vm).
Includes all features in the **Community** tier, plus: - Instead of adding the Harden-Runner GitHub Action in each workflow, you'll need to install the Harden-Runner agent on your runner image (e.g. AMI). This is typically done using packer.
- The Harden-Runner agent monitors each job run on the VM, both ephemeral and persistent runners are supported; you do NOT need to add the Harden-Runner GitHub Action to each job for `audit` mode. You do need to add the Harden-Runner GitHub Action for `block` mode.
- You can access security insights and runtime detections under the `Runtime Security` tab in your dashboard.
- **Support for Private Repositories:** Extend Harden-Runner's security capabilities to your private GitHub repositories. ## Support for Self-Hosted Runners and Private Repositories
- **Support for Self-Hosted Runners:** Apply security controls and monitoring to self-hosted GitHub Actions runners.
- **GitHub Checks Integration:** Enable GitHub Checks for Harden-Runner—if the baseline remains unchanged, the check passes; if it changes, the check fails, showing new outbound connections.
- **View Outbound GitHub API calls at the Job Level:** Monitor HTTPS requests to GitHub APIs
- **Determine Minimum GITHUB_TOKEN Permissions:** Monitor outbound HTTPS requests to GitHub APIs to recommend the least-privilege permissions needed for your workflows, enhancing security by reducing unnecessary access.
- **View the Name and Path of Every File Written During the Build Process:** Gain visibility into every file written to the build environment, including the ability to correlate file writes with processes, ensuring complete transparency.
- **View Process Names and Arguments:** Monitor every process executed during the build process, along with its arguments, and navigate the process tree to detect suspicious activities.
For a detailed comparison and more information, please visit our [Pricing Page](https://www.stepsecurity.io/pricing). Runtime security for self-hosted runners and private repositories are supported with a commercial license. Check out the [documentation](https://docs.stepsecurity.io/stepsecurity-platform/billing) for more details.
Explore the full feature set in the [Features Documentation](https://docs.stepsecurity.io/harden-runner). - Install the [StepSecurity Actions Security GitHub App](https://github.com/apps/stepsecurity-actions-security) to use Harden-Runner GitHub Action for `Private` repositories.
- If you use Harden-Runner GitHub Action in a private repository, the generated insights URL is NOT public.
- You need to authenticate first to access insights URL for private repository. Only those who have access to the repository can view it.
--- Read this [case study on how Kapiche uses Harden-Runner](https://www.stepsecurity.io/case-studies/kapiche/) to improve software supply chain security in their private repositories.
## Trusted By and Case Studies ## Features at a glance
Harden-Runner is trusted by over 11,000 leading open-source projects and enterprises, including Microsoft, Google, Kubernetes, and more. For details, check out the documentation at https://docs.stepsecurity.io
### Trusted by ### 👀 Monitor egress traffic
> Applies to both GitHub-hosted and self-hosted runners
| [![CISA](https://avatars.githubusercontent.com/u/18539691?s=60&v=4)](https://app.stepsecurity.io/github/cisagov/skeleton-generic/actions/runs/9947319332?jobid=27479776091&tab=network-events) | [![Microsoft](https://avatars.githubusercontent.com/u/6154722?s=60&v=4)](https://app.stepsecurity.io/github/microsoft/ebpf-for-windows/actions/runs/7587031851) | [![Google](https://avatars.githubusercontent.com/u/2810941?s=60&v=4)](https://app.stepsecurity.io/github/GoogleCloudPlatform/functions-framework-ruby/actions/runs/7576989995) | [![DataDog](https://avatars.githubusercontent.com/u/365230?s=60&v=4)](https://app.stepsecurity.io/github/DataDog/stratus-red-team/actions/runs/7446169664) | [![Intel](https://avatars.githubusercontent.com/u/17888862?s=60&v=4)](https://app.stepsecurity.io/github/intel/cve-bin-tool/actions/runs/7590975903) | [![Kubernetes](https://avatars.githubusercontent.com/u/36015203?s=60&v=4)](https://app.stepsecurity.io/github/kubernetes-sigs/cluster-api-provider-azure/actions/runs/7591172950) | [![Node.js](https://avatars.githubusercontent.com/u/9950313?s=60&v=4)](https://app.stepsecurity.io/github/nodejs/node/actions/runs/7591405720) | [![AWS](https://avatars.githubusercontent.com/u/2232217?s=60&v=4)](https://app.stepsecurity.io/github/aws/aperf/actions/runs/7631366761) | Harden-Runner monitors all outbound traffic from each job at the DNS and network layers
| --------------------------------------------------------------------------------------------------------------------------------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | ---------------------------------------------------------------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------- |
| **CISA**<br>[Explore](https://app.stepsecurity.io/github/cisagov/skeleton-generic/actions/runs/9947319332?jobid=27479776091&tab=network-events) | **Microsoft**<br>[Explore](https://app.stepsecurity.io/github/microsoft/ebpf-for-windows/actions/runs/7587031851) | **Google**<br>[Explore](https://app.stepsecurity.io/github/GoogleCloudPlatform/functions-framework-ruby/actions/runs/7576989995) | **DataDog**<br>[Explore](https://app.stepsecurity.io/github/DataDog/stratus-red-team/actions/runs/7446169664) | **Intel**<br>[Explore](https://app.stepsecurity.io/github/intel/cve-bin-tool/actions/runs/7590975903) | **Kubernetes**<br>[Explore](https://app.stepsecurity.io/github/kubernetes-sigs/cluster-api-provider-azure/actions/runs/7591172950) | **Node.js**<br>[Explore](https://app.stepsecurity.io/github/nodejs/node/actions/runs/7591405720) | **AWS**<br>[Explore](https://app.stepsecurity.io/github/aws/aperf/actions/runs/7631366761) |
### Enterprise Case Studies - After the workflow completes, each outbound call is correlated with each step of the job, and shown in the insights page
- For self-hosted runners, no changes are needed to workflow files to monitor egress traffic
- A filtering (block) egress policy is suggested in the insights page based on past job runs
- [How Mercari Secures GitHub Actions with StepSecurity](https://www.stepsecurity.io/case-studies/mercari) ### 🚦 Filter egress traffic to allowed endpoints
- [How Omnissa Secures GitHub Actions with StepSecurity](https://www.stepsecurity.io/case-studies/omnissa)
- [Chainguard Secures GitHub Actions with StepSecurity](https://www.stepsecurity.io/case-studies/chainguard)
- [How Coveo Strengthened GitHub Actions Security with StepSecurity](https://www.stepsecurity.io/case-studies/coveo)
- [Hashgraph Achieves Comprehensive CI/CD Security Without Compromising Development Speed](https://www.stepsecurity.io/case-studies/hashgraph)
--- > Applies to both GitHub-hosted and self-hosted runners
## Environment Compatibility Matrix Once allowed endpoints are set in the policy in the workflow file, or in the [Policy Store](https://docs.stepsecurity.io/harden-runner/how-tos/block-egress-traffic#2-add-the-policy-using-the-policy-store)
Harden-Runner is designed to work seamlessly across a variety of runner environments, providing consistent security insights and protections regardless of where your workflows execute. For self-hosted runners, audit mode is deployed directly to the runner infrastructure without requiring any changes to your existing workflows. For more details, refer to the [official documentation](https://docs.stepsecurity.io/harden-runner). - Harden-Runner blocks egress traffic at the DNS (Layer 7) and network layers (Layers 3 and 4)
- It blocks DNS exfiltration, where attacker tries to send data out using DNS resolution
- Wildcard domains are supported, e.g. you can add `*.data.mcr.microsoft.com:443` to the allowed list, and egress traffic will be allowed to `eastus.data.mcr.microsoft.com:443` and `westus.data.mcr.microsoft.com:443`
| Environment Type | Compatibility | Audit Mode Deployment | Workflow Changes for Audit/Block Mode | <p align="left">
|------------------|---------------|--------------------------|-------------------| <img src="images/blocked-outbound-call-2.png" alt="Policy recommended by harden-runner" >
| GitHub-hosted runners (Linux) | ✅ Full support | Add Harden-Runner Action to workflow | Yes | </p>
| GitHub-hosted runners (Windows, macOS) | ✅ Audit mode only | Add Harden-Runner Action to workflow | Yes |
| Self-hosted VM runners | ✅ Full support | Include agent in runner image | No |
| Self-hosted bare-metal runners | ✅ Full support | Install agent as a service | No |
| Actions Runner Controller (ARC) | ✅ Full support | Deploy as DaemonSet | No |
| RunsOn Runners | ✅ Full support | Pre-integrated | No |
## How It Works ### 📁 Detect tampering of source code during build
Want to know the technical details? Dive into the architecture of Harden-Runner and its integrations for GitHub-hosted and self-hosted runners in our [How Harden-Runner Works Documentation](docs/how-it-works.md). > Applies to both GitHub-hosted and self-hosted runners
--- Harden-Runner monitors file writes and can detect if a file is overwritten.
## Limitations - Source code overwrite is not expected in a release build
- All source code files are monitored, which means even changes to IaC files (Kubernetes manifest, Terraform) are detected
- You can enable notifications to get one-time alert when source code is overwritten
- For self-hosted runners, no changes are needed to workflow files for file monitoring
While Harden-Runner offers powerful features, there are certain limitations. See the complete list in [Known Limitations](docs/limitations.md). <p align="left">
<img src="images/file-overwritten.png" alt="Policy recommended by harden-runner" >
</p>
--- ### 🚫 Run your job without sudo access
> Applies to GitHub-hosted runners
GitHub-hosted runner uses passwordless sudo for running jobs.
- This means compromised build tools or dependencies can install attack tools
- If your job does not need sudo access, you see a policy
recommendation to disable sudo in the insights page
- When you set `disable-sudo` to `true`, the job steps run without sudo access to the GitHub-hosted Ubuntu VM
### 🔔 Get security alerts
> Applies to both GitHub-hosted and self-hosted runners
Install the [StepSecurity Actions Security GitHub App](https://github.com/apps/stepsecurity-actions-security) to get security alerts.
- Email and Slack notifications are supported
- Notifications are sent when outbound traffic is blocked or source code is overwritten
- Notifications are not repeated for the same alert for a given workflow
## Discussions ## Discussions
Join the conversation! For questions, ideas, or feedback, visit our [Discussions Page](https://github.com/step-security/harden-runner/discussions). - If you have questions or ideas, please use [discussions](https://github.com/step-security/harden-runner/discussions).
- For support for self-hosted runners and private repositories, email support@stepsecurity.io.
- If you use a different CI/CD Provider (e.g. Jenkins, Gitlab CI, etc), and would like to use Harden Runner in your environment, please email interest@stepsecurity.io
For enterprise support, email support@stepsecurity.io. Interested in using Harden-Runner in other CI/CD platforms? Reach out to interest@stepsecurity.io. ## How does it work?
--- ### GitHub-Hosted Runners
## License For GitHub-hosted runners, Harden-Runner GitHub Action downloads and installs the StepSecurity Agent.
Harden-Runner is open source. See the [LICENSE](LICENSE) file for details. - The code to monitor file, process, and network activity is in the Agent.
- The agent is written in Go and is open source at https://github.com/step-security/agent
- The agent's build is reproducible. You can view the steps to reproduce the build [here](http://app.stepsecurity.io/github/step-security/agent/releases/latest)
### Self-Hosted Actions Runner Controller (ARC) Runners
- ARC Harden Runner daemonset uses eBPF
- You can find more details in this blog post: https://www.stepsecurity.io/blog/introducing-harden-runner-for-kubernetes-based-self-hosted-actions-runners
- ARC Harden Runner is NOT open source.
### Self-Hosted VM Runners (e.g. on EC2)
- For self-hosted VMs, you add the Harden-Runner agent into your runner image (e.g. AMI).
- Agent for self-hosted VMs is NOT open source.
## Limitations
### GitHub-Hosted Runners
1. Only Ubuntu VM is supported. Windows and MacOS GitHub-hosted runners are not supported. There is a discussion about that [here](https://github.com/step-security/harden-runner/discussions/121).
2. Harden-Runner is not supported when [job is run in a container](https://docs.github.com/en/actions/using-jobs/running-jobs-in-a-container) as it needs sudo access on the Ubuntu VM to run. It can be used to monitor jobs that use containers to run steps. The limitation is if the entire job is run in a container. That is not common for GitHub Actions workflows, as most of them run directly on `ubuntu-latest`. Note: This is not a limitation for Self-Hosted runners.
### Self-Hosted Actions Runner Controller (ARC) Runners
1. Since ARC Harden Runner uses eBPF, only Linux jobs are supported. Windows and MacOS jobs are not supported.
### Self-Hosted VM Runners (e.g. on EC2)
1. Only Ubuntu VM is supported. Windows and MacOS jobs are not supported.

View file

@ -17,11 +17,7 @@ inputs:
required: false required: false
default: "false" default: "false"
disable-sudo: disable-sudo:
description: "Disable sudo access for the runner account. Note: This parameter will be deprecated in the future. Please use disable-sudo-and-containers instead." description: "Disable sudo access for the runner account"
required: false
default: "false"
disable-sudo-and-containers:
description: "Disable sudo and container access for the runner account"
required: false required: false
default: "false" default: "false"
disable-file-monitoring: disable-file-monitoring:
@ -29,27 +25,15 @@ inputs:
required: false required: false
default: "false" default: "false"
policy: policy:
description: "Policy name to be used from the policy store. Requires id-token: write permission." description: "Policy name to be used from the policy store"
required: false required: false
default: "" default: ""
api-key:
description: "StepSecurity API key for authenticating with the policy store. Required when use-policy-store is set to true."
required: false
default: ""
use-policy-store:
description: "Set to true to fetch policy from the policy store using the API key. This is the preferred method over the policy input which requires id-token: write permission. Policies can be defined and attached at workflow, repo, org, or cluster (for ARC) level in the policy store. The most granular policy will apply."
required: false
default: "false"
deploy-on-self-hosted-vm:
description: "Set to true to deploy the Harden Runner agent directly on a self-hosted runner VM (Linux only). The recommended approach for self-hosted VMs is to bake the agent into the VM image; see docs.stepsecurity.io. Use this option only if baking is not possible, and only for ephemeral runners."
required: false
default: "false"
branding: branding:
icon: "check-square" icon: "check-square"
color: "green" color: "green"
runs: runs:
using: "node24" using: "node16"
pre: "dist/pre/index.js" pre: "dist/pre/index.js"
main: "dist/index.js" main: "dist/index.js"
post: "dist/post/index.js" post: "dist/post/index.js"

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@ -1,20 +0,0 @@
## How Harden-Runner Works?
### GitHub-Hosted Runners
For GitHub-hosted runners, Harden-Runner GitHub Action downloads and installs the StepSecurity Agent.
- The code to monitor file, process, and network activity is in the Agent.
- The community tier agent for Linux is open-source and can be found [here](https://github.com/step-security/agent). The enterprise agent for Linux and agents for Windows and macOS are closed-source.
### Self-Hosted Actions Runner Controller (ARC) Runners
- ARC Harden Runner daemonset uses eBPF
- You can find more details in this [blog post](https://www.stepsecurity.io/blog/introducing-harden-runner-for-kubernetes-based-self-hosted-actions-runners)
- ARC Harden Runner is NOT open source.
### Self-Hosted VM Runners (e.g. on EC2)
- For self-hosted VMs, you add the Harden-Runner agent into your runner image (e.g. AMI).
- You can find more details in this [blog post](https://www.stepsecurity.io/blog/ci-cd-security-for-self-hosted-vm-runners)
- Agent for self-hosted VMs is NOT open source.

View file

@ -1,8 +0,0 @@
## Limitations
### GitHub-Hosted Runners
* Harden-Runner is not supported when [job is run in a container](https://docs.github.com/en/actions/using-jobs/running-jobs-in-a-container) with built-in labels such as `ubuntu-latest`, as it needs sudo access on the Ubuntu VM to run. The limitation is if the entire job is run in a container. However, such jobs can be monitored when using custom VM images with GitHub-hosted runners. This is also not a limitation for Self-Hosted runners.
### Self-Hosted Actions Runner Controller (ARC) Runners
* Since ARC Harden Runner uses eBPF, only Linux jobs are supported. Windows and MacOS jobs are not supported.

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@ -1,9 +1,5 @@
/** @type {import('ts-jest/dist/types').InitialOptionsTsJest} */ /** @type {import('ts-jest/dist/types').InitialOptionsTsJest} */
export default { export default {
preset: "ts-jest", preset: 'ts-jest',
testEnvironment: "node", testEnvironment: 'node',
reporters: [
"default",
["jest-junit", { outputDirectory: "reports", outputName: "report.xml" }],
],
}; };

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@ -1,15 +0,0 @@
[[IgnoredVulns]]
id = "GHSA-h5c3-5r3r-rr8q"
reason = "Untrusted headers are not processed"
[[IgnoredVulns]]
id = "GHSA-rmvr-2pp2-xj38"
reason = "Untrusted headers are not processed"
[[IgnoredVulns]]
id = "GHSA-xx4v-prfh-6cgc"
reason = "Untrusted headers are not processed"
[[IgnoredVulns]]
id = "GHSA-g9mf-h72j-4rw9"
reason = "undici fetch() is only used to call GitHub API; exploitation requires a malicious server"

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@ -1,6 +1,6 @@
{ {
"name": "step-security-harden-runner", "name": "step-security-harden-runner",
"version": "2.7.0", "version": "2.5.1",
"description": "Security agent for GitHub-hosted runner: block egress traffic & detect code overwrite to prevent breaches", "description": "Security agent for GitHub-hosted runner: block egress traffic & detect code overwrite to prevent breaches",
"main": "index.js", "main": "index.js",
"scripts": { "scripts": {
@ -23,13 +23,12 @@
}, },
"homepage": "https://github.com/step-security/harden-runner#readme", "homepage": "https://github.com/step-security/harden-runner#readme",
"dependencies": { "dependencies": {
"@actions/cache": "^4.0.0", "@actions/cache": "^3.1.4",
"@actions/core": "^1.5.0", "@actions/core": "^1.5.0",
"@actions/exec": "^1.1.0", "@actions/exec": "^1.1.0",
"@actions/github": "^6.0.1", "@actions/github": "^5.0.0",
"@actions/http-client": "^2.0.1", "@actions/http-client": "^2.0.1",
"@actions/tool-cache": "^1.7.1", "@actions/tool-cache": "^1.7.1",
"@babel/helpers": "^7.26.10",
"ansi-regex": ">=5.0.1", "ansi-regex": ">=5.0.1",
"is-docker": "^3.0.0", "is-docker": "^3.0.0",
"node-fetch": ">=3.2.0", "node-fetch": ">=3.2.0",
@ -40,7 +39,7 @@
"@types/node": "^16.9.0", "@types/node": "^16.9.0",
"@typescript-eslint/eslint-plugin": "^6.1.0", "@typescript-eslint/eslint-plugin": "^6.1.0",
"@typescript-eslint/parser": "^6.1.0", "@typescript-eslint/parser": "^6.1.0",
"@vercel/ncc": "^0.38.3", "@vercel/ncc": "^0.30.0",
"eslint": "^7.32.0", "eslint": "^7.32.0",
"eslint-config-google": "^0.14.0", "eslint-config-google": "^0.14.0",
"jest": "^29.3.1", "jest": "^29.3.1",

View file

@ -1,9 +1,20 @@
import { isARCRunner } from "./arc-runner"; import { isArcRunner, sendAllowedEndpoints } from "./arc-runner";
it("should correctly recognize arc based runner", async () => { it("should correctly recognize arc based runner", async () => {
process.env["GITHUB_ACTIONS_RUNNER_EXTRA_USER_AGENT"] = process.env["GITHUB_ACTIONS_RUNNER_EXTRA_USER_AGENT"] =
"actions-runner-controller/2.0.1"; "actions-runner-controller/2.0.1";
let isArc: boolean = await isARCRunner(); let isArc: boolean = await isArcRunner();
expect(isArc).toBe(true); expect(isArc).toBe(true);
}); });
it("should write endpoint files", ()=>{
process.env["isTest"] = "1"
let allowed_endpoints = ["github.com:443", "*.google.com:443", "youtube.com"].join(" ");
sendAllowedEndpoints(allowed_endpoints);
})

View file

@ -1,8 +1,8 @@
import * as cp from "child_process"; import * as cp from "child_process";
import * as fs from "fs"; import * as fs from "fs";
import path from "path"; import { sleep } from "./setup";
export function isARCRunner(): boolean { export function isArcRunner(): boolean {
const runnerUserAgent = process.env["GITHUB_ACTIONS_RUNNER_EXTRA_USER_AGENT"]; const runnerUserAgent = process.env["GITHUB_ACTIONS_RUNNER_EXTRA_USER_AGENT"];
let isARC = false; let isARC = false;
@ -18,40 +18,45 @@ export function isARCRunner(): boolean {
function isSecondaryPod(): boolean { function isSecondaryPod(): boolean {
const workDir = "/__w"; const workDir = "/__w";
let hasKubeEnv = process.env["KUBERNETES_PORT"] !== undefined; return fs.existsSync(workDir);
return fs.existsSync(workDir) && hasKubeEnv; }
function getRunnerTempDir(): string {
const isTest = process.env["isTest"];
if (isTest === "1") {
return "/tmp";
}
return process.env["RUNNER_TEMP"] || "/tmp";
} }
export function sendAllowedEndpoints(endpoints: string): void { export function sendAllowedEndpoints(endpoints: string): void {
const startTime = Date.now();
const allowedEndpoints = endpoints.split(" "); // endpoints are space separated const allowedEndpoints = endpoints.split(" "); // endpoints are space separated
let sent = 0; for (const endpoint of allowedEndpoints) {
for (let endpoint of allowedEndpoints) { if (endpoint) {
endpoint = endpoint.trim(); const encodedEndpoint = Buffer.from(endpoint).toString("base64");
if (endpoint.length > 0) { cp.execSync(
let encodedEndpoint = Buffer.from(endpoint).toString("base64"); `echo "${endpoint}" > "${getRunnerTempDir()}/step_policy_endpoint_${encodedEndpoint}"`
let endpointPolicyStr = `step_policy_endpoint_${encodedEndpoint}`; );
echo(endpointPolicyStr);
sent++;
} }
} }
if (sent > 0) { if (allowedEndpoints.length > 0) {
applyPolicy(sent); applyPolicy(allowedEndpoints.length);
} }
const duration = Date.now() - startTime;
console.log(
`[harden-runner] sendAllowedEndpoints completed in ${duration}ms (sent ${sent} endpoints)`
);
} }
function applyPolicy(count: number): void { function applyPolicy(count: number): void {
let applyPolicyStr = `step_policy_apply_${count}`; const fileName = `step_policy_apply_${count}`;
echo(applyPolicyStr); cp.execSync(`echo "${fileName}" > "${getRunnerTempDir()}/${fileName}"`);
} }
function echo(content: string) { export function removeStepPolicyFiles() {
cp.execFileSync("echo", [content]); cp.execSync(`rm ${getRunnerTempDir()}/step_policy_*`);
}
export function arcCleanUp() {
cp.execSync(`echo "cleanup" > "${getRunnerTempDir()}/step_policy_cleanup"`);
} }

View file

@ -1,81 +0,0 @@
import { buildBravoConfig } from "./bravo-config";
import { Configuration } from "./interfaces";
const base: Configuration = {
repo: "org/repo",
run_id: "123",
correlation_id: "depot-abc",
working_directory: "/w",
api_url: "https://int.api.stepsecurity.io/v1",
telemetry_url: "https://int.app-api.stepsecurity.io/v1",
allowed_endpoints: "github.com:443",
egress_policy: "audit",
disable_telemetry: false,
disable_sudo: false,
disable_sudo_and_containers: false,
disable_file_monitoring: false,
is_github_hosted: false,
private: "true" as unknown as string,
is_debug: false,
one_time_key: "otk-xyz",
api_key: "tenant-key",
use_policy_store: false,
deploy_on_self_hosted_vm: false,
};
describe("buildBravoConfig", () => {
test("forces is_github_hosted=true so agent honors passed correlation_id", () => {
expect(buildBravoConfig(base).is_github_hosted).toBe(true);
});
test("omits api_key (agent authenticates via one_time_key, not vm-api-key)", () => {
expect(buildBravoConfig(base)).not.toHaveProperty("api_key");
});
test("omits customer (server infers tenant from repo)", () => {
expect(buildBravoConfig(base)).not.toHaveProperty("customer");
});
test("omits use_policy_store (action-side concern, not agent)", () => {
expect(buildBravoConfig(base)).not.toHaveProperty("use_policy_store");
});
test("forwards telemetry_url so network events hit configured env", () => {
expect(buildBravoConfig(base).telemetry_url).toBe(base.telemetry_url);
});
test("forwards one_time_key so agent can auth to presigned URL endpoint", () => {
expect(buildBravoConfig(base).one_time_key).toBe("otk-xyz");
});
test("forwards repo, run_id, correlation_id so server can attribute events", () => {
const cfg = buildBravoConfig(base);
expect(cfg.repo).toBe("org/repo");
expect(cfg.run_id).toBe("123");
expect(cfg.correlation_id).toBe("depot-abc");
});
test("forwards private flag", () => {
expect(buildBravoConfig(base).private).toBe(base.private);
});
test("forwards egress_policy and allowed_endpoints", () => {
const cfg = buildBravoConfig(base);
expect(cfg.egress_policy).toBe("audit");
expect(cfg.allowed_endpoints).toBe("github.com:443");
});
test("forwards disable_* flags", () => {
const cfg = buildBravoConfig({
...base,
disable_telemetry: true,
disable_sudo: true,
disable_sudo_and_containers: true,
disable_file_monitoring: true,
});
expect(cfg.disable_telemetry).toBe(true);
expect(cfg.disable_sudo).toBe(true);
expect(cfg.disable_sudo_and_containers).toBe(true);
expect(cfg.disable_file_monitoring).toBe(true);
});
});

View file

@ -1,21 +0,0 @@
import { Configuration } from "./interfaces";
export function buildBravoConfig(confg: Configuration) {
return {
repo: confg.repo,
run_id: confg.run_id,
correlation_id: confg.correlation_id,
working_directory: confg.working_directory,
api_url: confg.api_url,
telemetry_url: confg.telemetry_url,
one_time_key: confg.one_time_key,
allowed_endpoints: confg.allowed_endpoints,
egress_policy: confg.egress_policy,
disable_telemetry: confg.disable_telemetry,
disable_sudo: confg.disable_sudo,
disable_sudo_and_containers: confg.disable_sudo_and_containers,
disable_file_monitoring: confg.disable_file_monitoring,
private: confg.private,
is_github_hosted: true,
};
}

View file

@ -1,98 +0,0 @@
import * as fs from "fs";
import * as crypto from "crypto";
import * as core from "@actions/core";
import { verifyChecksum, CHECKSUMS } from "./checksum";
jest.mock("fs", () => ({
...jest.requireActual("fs"),
readFileSync: jest.fn(),
}));
jest.mock("crypto", () => ({
...jest.requireActual("crypto"),
createHash: jest.fn(),
}));
jest.mock("@actions/core");
const mockReadFile = fs.readFileSync as jest.MockedFunction<typeof fs.readFileSync>;
const mockSetFailed = core.setFailed as jest.MockedFunction<typeof core.setFailed>;
const mockCreateHash = crypto.createHash as jest.MockedFunction<typeof crypto.createHash>;
function stubHash(hash: string) {
mockCreateHash.mockReturnValue({
update: jest.fn().mockReturnThis(),
digest: jest.fn().mockReturnValue(hash),
} as unknown as crypto.Hash);
}
const WRONG_HASH = "0".repeat(64);
describe("verifyChecksum", () => {
beforeEach(() => {
jest.clearAllMocks();
mockReadFile.mockReturnValue(Buffer.from("test-payload"));
});
describe("agentType=bravo", () => {
test("passes with matching bravo amd64 checksum", () => {
stubHash(CHECKSUMS.bravo.amd64);
expect(verifyChecksum("/tmp/f", true, "amd64", "linux", "bravo")).toBe(true);
expect(mockSetFailed).not.toHaveBeenCalled();
});
test("passes with matching bravo arm64 checksum", () => {
stubHash(CHECKSUMS.bravo.arm64);
expect(verifyChecksum("/tmp/f", true, "arm64", "linux", "bravo")).toBe(true);
});
test("uses bravo checksum even when isTLS=false", () => {
stubHash(CHECKSUMS.bravo.amd64);
expect(verifyChecksum("/tmp/f", false, "amd64", "linux", "bravo")).toBe(true);
});
test("fails on mismatched bravo checksum", () => {
stubHash(WRONG_HASH);
expect(verifyChecksum("/tmp/f", true, "amd64", "linux", "bravo")).toBe(false);
expect(mockSetFailed).toHaveBeenCalled();
});
});
describe("agentType default (omitted)", () => {
test("uses TLS checksum when isTLS=true", () => {
stubHash(CHECKSUMS.tls.amd64);
expect(verifyChecksum("/tmp/f", true, "amd64", "linux")).toBe(true);
});
test("uses non_tls checksum when isTLS=false", () => {
stubHash(CHECKSUMS.non_tls.amd64);
expect(verifyChecksum("/tmp/f", false, "amd64", "linux")).toBe(true);
});
test("TLS mismatch fails", () => {
stubHash(CHECKSUMS.bravo.amd64);
expect(verifyChecksum("/tmp/f", true, "amd64", "linux")).toBe(false);
expect(mockSetFailed).toHaveBeenCalled();
});
});
describe("darwin", () => {
test("passes with matching darwin checksum", () => {
stubHash(CHECKSUMS.darwin);
expect(verifyChecksum("/tmp/f", false, "", "darwin")).toBe(true);
});
});
describe("win32", () => {
test("passes with matching windows amd64 checksum", () => {
stubHash(CHECKSUMS.windows.amd64);
expect(verifyChecksum("/tmp/f", false, "amd64", "win32")).toBe(true);
});
});
describe("unsupported platform", () => {
test("returns false without calling setFailed", () => {
stubHash(CHECKSUMS.bravo.amd64);
expect(verifyChecksum("/tmp/f", true, "amd64", "freebsd")).toBe(false);
expect(mockSetFailed).not.toHaveBeenCalled();
});
});
});

View file

@ -2,68 +2,21 @@ import * as core from "@actions/core";
import * as crypto from "crypto"; import * as crypto from "crypto";
import * as fs from "fs"; import * as fs from "fs";
export const CHECKSUMS = { export function verifyChecksum(downloadPath: string) {
tls: {
amd64: "d58a9c1c5245155ce4c71507a61e213a29925a7c39c0d20bfd00bef0d281bdbb", // v1.8.6
arm64: "084fa95e74d17321dd1c37c93abeb8577e53ddf5266410e19f52aa79a02ae33e",
},
non_tls: {
amd64: "e38de61e1afd98dd339bb9acce4996183875d482be1638fb198ab02b3e25bbef", // v0.16.0
},
bravo: {
amd64: "495f607a891d89f12214849301f247bdca565afe67deb170fe7e5d6d361852ca", // v1.8.6
arm64: "f96f66ab946097aae1fc887e12fe1cefcc5d510bce179221c7185374e4adf538",
},
darwin: "fe26a1f6af4afe9f1a854d8633832f5d18ab542827003cae445b3a64021d612c", // v0.0.5
windows: {
amd64: "93f1e5d87c6647e6eca7963d5f4b4bd73107029430f8e6945ffece93007a89f5", // v1.0.2
},
};
// verifyChecksum returns true if checksum is valid
export function verifyChecksum(
downloadPath: string,
isTLS: boolean,
variant: string,
platform: string,
agentType: "default" | "bravo" = "default"
) {
const fileBuffer: Buffer = fs.readFileSync(downloadPath); const fileBuffer: Buffer = fs.readFileSync(downloadPath);
const checksum: string = crypto const checksum: string = crypto
.createHash("sha256") .createHash("sha256")
.update(fileBuffer) .update(fileBuffer)
.digest("hex"); // checksum of downloaded file .digest("hex"); // checksum of downloaded file
let expectedChecksum: string = ""; const expectedChecksum: string =
"ceb925c78e5c79af4f344f08f59bbdcf3376d20d15930a315f9b24b6c4d0328a"; // checksum for v0.13.5
switch (platform) {
case "linux":
if (agentType === "bravo") {
expectedChecksum = CHECKSUMS["bravo"][variant];
} else {
expectedChecksum = isTLS
? CHECKSUMS["tls"][variant]
: CHECKSUMS["non_tls"][variant];
}
break;
case "darwin":
expectedChecksum = CHECKSUMS["darwin"];
break;
case "win32":
expectedChecksum = CHECKSUMS["windows"][variant];
break;
default:
console.log(`Unsupported platform: ${platform}`);
return false;
}
if (checksum !== expectedChecksum) { if (checksum !== expectedChecksum) {
core.setFailed( core.setFailed(
`Checksum verification failed, expected ${expectedChecksum} instead got ${checksum}` `Checksum verification failed, expected ${expectedChecksum} instead got ${checksum}`
); );
return false;
} }
core.info(`✅ Checksum verification passed. checksum=${checksum}`); core.debug("Checksum verification passed.");
return true;
} }

View file

@ -1,51 +1,46 @@
import * as fs from "fs"; import * as fs from "fs";
import * as common from "./common";
import * as cp from "child_process"; import * as cp from "child_process";
import * as path from "path"; import * as core from "@actions/core";
import * as common from "./common";
import isDocker from "is-docker"; import isDocker from "is-docker";
import { isARCRunner } from "./arc-runner"; import * as cache from "@actions/cache";
import { isGithubHosted } from "./tls-inspect"; import { cacheFile, cacheKey, isValidEvent } from "./cache";
import { context } from "@actions/github"; import path from "path";
import { isPlatformSupported, isAgentInstalled, detectThirdPartyRunnerProvider } from "./utils"; import { arcCleanUp, isArcRunner, removeStepPolicyFiles } from "./arc-runner";
(async () => { (async () => {
console.log("[harden-runner] post-step"); if (process.platform !== "linux") {
console.log(common.UBUNTU_MESSAGE);
const customProperties = context?.payload?.repository?.custom_properties || {};
if (customProperties["skip-harden-runner"] === "true") {
console.log("Skipping harden-runner: custom property 'skip-harden-runner' is set to 'true'");
return; return;
} }
if (isDocker()) {
if (!isPlatformSupported(process.platform)) {
console.log(common.UNSUPPORTED_RUNNER_MESSAGE);
return;
}
if (isGithubHosted() && isDocker()) {
console.log(common.CONTAINER_MESSAGE); console.log(common.CONTAINER_MESSAGE);
return; return;
} }
if (isGithubHosted() && process.platform === "linux" && !process.env.USER) { if (isValidEvent()) {
console.log(common.UBUNTU_SLIM_MESSAGE); try {
return; const cacheResult = await cache.saveCache(
[path.join(__dirname, "cache.txt")],
cacheKey
);
console.log(cacheResult);
} catch (exception) {
console.log(exception);
}
} }
if (isARCRunner()) { if (isArcRunner()) {
console.log(`[!] ${common.ARC_RUNNER_MESSAGE}`); console.log(`[!] ${common.ARC_RUNNER_MESSAGE}`);
arcCleanUp();
removeStepPolicyFiles();
return; return;
} }
const thirdPartyProvider = detectThirdPartyRunnerProvider();
if (process.env.STATE_selfHosted === "true") { if (process.env.STATE_selfHosted === "true") {
return; return;
} }
if (process.env.STATE_customVMImage === "true") {
return;
}
if ( if (
String(process.env.STATE_monitorStatusCode) === String(process.env.STATE_monitorStatusCode) ===
common.STATUS_HARDEN_RUNNER_UNAVAILABLE common.STATUS_HARDEN_RUNNER_UNAVAILABLE
@ -54,78 +49,13 @@ import { isPlatformSupported, isAgentInstalled, detectThirdPartyRunnerProvider }
return; return;
} }
switch (process.platform) {
case "linux":
if (thirdPartyProvider) {
await handleAgentBravoCleanup();
} else {
await handleLinuxCleanup();
}
break;
case "win32":
await handleWindowsCleanup();
break;
case "darwin":
await handleMacosCleanup();
break;
}
try {
await common.addSummary();
} catch (exception) {
console.log(exception);
}
})();
async function handleAgentBravoCleanup() {
cp.execFileSync("/usr/bin/echo", ["step_policy_jobend"]);
const doneFile = "/home/agent/done.json";
let counter = 0;
while (true) {
if (!fs.existsSync(doneFile)) {
counter++;
if (counter > 10) {
console.log("timed out");
break;
}
await sleep(1000);
} else {
console.log(fs.readFileSync(doneFile, "utf-8"));
break;
}
}
const log = "/home/agent/agent.log";
if (fs.existsSync(log)) {
console.log("log:");
console.log(fs.readFileSync(log, "utf-8"));
}
const status = "/home/agent/agent.status";
if (fs.existsSync(status)) {
console.log("status:");
console.log(fs.readFileSync(status, "utf-8"));
}
}
async function handleLinuxCleanup() {
if (process.env.STATE_isTLS === "false" && process.arch === "arm64") {
return;
}
if (isGithubHosted() && fs.existsSync("/home/agent/post_event.json")) {
console.log("Post step already executed, skipping");
return;
}
fs.writeFileSync( fs.writeFileSync(
"/home/agent/post_event.json", "/home/agent/post_event.json",
JSON.stringify({ event: "post" }) JSON.stringify({ event: "post" })
); );
const doneFile = "/home/agent/done.json"; var doneFile = "/home/agent/done.json";
let counter = 0; var counter = 0;
while (true) { while (true) {
if (!fs.existsSync(doneFile)) { if (!fs.existsSync(doneFile)) {
counter++; counter++;
@ -135,26 +65,19 @@ async function handleLinuxCleanup() {
break; break;
} }
await sleep(1000); await sleep(1000);
} else { } // The file *does* exist
// The file *does* exist else {
break; break;
} }
} }
const log = "/home/agent/agent.log"; var log = "/home/agent/agent.log";
if (fs.existsSync(log)) { if (fs.existsSync(log)) {
console.log("log:"); console.log("log:");
var content = fs.readFileSync(log, "utf-8"); var content = fs.readFileSync(log, "utf-8");
console.log(content); console.log(content);
} }
const daemonLog = "/home/agent/daemon.log";
if (fs.existsSync(daemonLog)) {
console.log("daemonLog:");
var content = fs.readFileSync(daemonLog, "utf-8");
console.log(content);
}
var status = "/home/agent/agent.status"; var status = "/home/agent/agent.status";
if (fs.existsSync(status)) { if (fs.existsSync(status)) {
console.log("status:"); console.log("status:");
@ -163,184 +86,20 @@ async function handleLinuxCleanup() {
} }
var disable_sudo = process.env.STATE_disableSudo; var disable_sudo = process.env.STATE_disableSudo;
var disable_sudo_and_containers = process.env.STATE_disableSudoAndContainers; if (disable_sudo !== "true") {
var journalLog = cp.execSync("sudo journalctl -u agent.service", {
if (disable_sudo !== "true" && disable_sudo_and_containers !== "true") { encoding: "utf8",
try { });
var journalLog = cp.execSync( console.log("Service log:");
"sudo journalctl -u agent.service --lines=1000", console.log(journalLog);
{
encoding: "utf8",
maxBuffer: 1024 * 1024 * 10, // 10MB buffer
}
);
console.log("agent.service log:");
console.log(journalLog);
} catch (error) {
console.log("Warning: Could not fetch service logs:", error.message);
}
} }
}
async function handleMacosCleanup() {
const post_event = "/opt/step-security/post_event.json";
if (isGithubHosted() && fs.existsSync(post_event)) {
console.log("Post step already executed, skipping");
return;
}
fs.writeFileSync(post_event, JSON.stringify({ event: "post" }));
// if agent is installed; wait for it to create done.json
if (isAgentInstalled(process.platform)) {
let macDone = "/opt/step-security/done.json";
let counter = 0;
while (true) {
if (!fs.existsSync(macDone)) {
counter++;
if (counter > 10) {
console.log("timed out");
break;
}
await sleep(1000);
} else {
// The file *does* exist
break;
}
}
}
let macAgentLog = "/opt/step-security/agent.log";
if (fs.existsSync(macAgentLog)) {
console.log("macAgentLog:");
var content = fs.readFileSync(macAgentLog, "utf-8");
console.log(content);
} else {
console.log("😭 macos agent.log file not found");
}
// Capture system log stream for harden-runner subsystem
try {
console.log("\nSystem log stream for io.stepsecurity.harden-runner:");
const logStreamOutput = cp.execSync(
"log show --predicate 'subsystem == \"io.stepsecurity.harden-runner\"' --info --last 10m",
{
encoding: "utf8",
maxBuffer: 1024 * 1024 * 10, // 10MB buffer
timeout: 5000, // 5 seconds timeout
}
);
console.log(logStreamOutput);
} catch (error) {
console.log("Warning: Could not fetch system log stream:", error.message);
}
}
async function handleWindowsCleanup() {
// windows cleanup
const agentDir = process.env.STATE_agentDir || "C:\\agent";
const postEventFile = path.join(agentDir, "post_event.json");
if (isGithubHosted() && fs.existsSync(postEventFile)) {
console.log("Windows post step already executed, skipping");
return;
}
if (process.arch === "arm64") {
console.log(common.ARM64_WINDOWS_RUNNER_MESSAGE);
return;
}
const p = cp.spawn(
"powershell.exe",
[
"-NoProfile",
"-NonInteractive",
"-Command",
"query user; exit $LASTEXITCODE",
],
{ stdio: ["ignore", "pipe", "pipe"], shell: false, windowsHide: true }
);
p.unref();
fs.writeFileSync(postEventFile, JSON.stringify({ event: "post" }));
// if agent is installed; wait for it to create done.json
if (isAgentInstalled(process.platform)) {
const doneFile = path.join(agentDir, "done.json");
let counter = 0;
while (true) {
if (!fs.existsSync(doneFile)) {
counter++;
if (counter > 10) {
console.log("timed out");
break;
}
await sleep(1000);
} else {
break;
}
}
}
console.log("stopping windows agent process...");
const pidFile = path.join(agentDir, "agent.pid");
try { try {
if (!fs.existsSync(pidFile)) { await common.addSummary();
console.log("PID file not found. Agent may not be running."); } catch (exception) {
return; console.log(exception);
}
const pid = parseInt(fs.readFileSync(pidFile, "utf8").trim());
console.log(`agent PID from file: ${pid}`);
try {
process.kill(pid, 0); // signal 0 just checks if process exists
} catch {
console.log("agent process not running.");
fs.unlinkSync(pidFile);
return;
}
console.log(`stopping agent process (PID: ${pid})...`);
process.kill(pid, "SIGINT");
let gracefulShutdown = false;
for (let i = 0; i < 10; i++) {
await sleep(1000);
try {
process.kill(pid, 0); // check if still exists
} catch {
gracefulShutdown = true;
console.log("agent process stopped gracefully");
break;
}
}
if (!gracefulShutdown) {
console.log("graceful shutdown timeout (10s), forcing termination...");
process.kill(pid, "SIGKILL");
console.log("agent process terminated forcefully");
}
if (fs.existsSync(pidFile)) {
fs.unlinkSync(pidFile);
console.log("PID file cleaned up");
}
} catch (error) {
console.log("warning: error stopping agent process:", error.message);
} }
})();
const log = path.join(agentDir, "agent.log");
if (fs.existsSync(log)) {
console.log("agent log:");
const content = fs.readFileSync(log, "utf-8");
console.log(content);
}
}
function sleep(ms) { function sleep(ms) {
return new Promise((resolve) => { return new Promise((resolve) => {

View file

@ -1,6 +1,5 @@
import * as core from "@actions/core"; import * as core from "@actions/core";
import { STEPSECURITY_API_URL, STEPSECURITY_WEB_URL } from "./configs"; import * as fs from "fs";
import { getAnnotationLogs } from "./utils";
export function printInfo(web_url) { export function printInfo(web_url) {
console.log( console.log(
@ -35,15 +34,8 @@ export const processLogLine = (
if (matches) { if (matches) {
const [ipAddress, domain, pid, process] = matches.slice(1); const [ipAddress, domain, pid, process] = matches.slice(1);
// Check if all values are non-empty and domain does not end with specified patterns // Check if all values are non-empty
if ( if (pid && process && domain && ipAddress) {
pid &&
process &&
domain &&
ipAddress &&
!domain.endsWith(".actions.githubusercontent.com.") &&
!domain.endsWith(".blob.core.windows.net.")
) {
const status = ipAddress.startsWith("54.185.253.63") const status = ipAddress.startsWith("54.185.253.63")
? "❌ Blocked" ? "❌ Blocked"
: "✅ Allowed"; : "✅ Allowed";
@ -55,23 +47,22 @@ export const processLogLine = (
}; };
export async function addSummary() { export async function addSummary() {
if (process.env.STATE_addSummary !== "true") { if (process.env.STATE_monitorStatusCode !== "200") {
return; return;
} }
const correlation_id = process.env.STATE_correlation_id; const web_url = "https://app.stepsecurity.io";
if (!correlation_id) { const insights_url = `${web_url}/github/${process.env["GITHUB_REPOSITORY"]}/actions/runs/${process.env["GITHUB_RUN_ID"]}`;
const log = "/home/agent/agent.log";
if (!fs.existsSync(log)) {
return; return;
} }
let needsSubscription = false; let needsSubscription = false;
try { try {
let data = getAnnotationLogs(process.platform); let data = fs.readFileSync("/home/agent/annotation.log", "utf8");
if ( if (data.includes("StepSecurity Harden Runner is disabled")) {
data !== undefined &&
data.includes("StepSecurity Harden Runner is disabled")
) {
needsSubscription = true; needsSubscription = true;
} }
} catch (err) { } catch (err) {
@ -97,57 +88,88 @@ export async function addSummary() {
return; return;
} }
// Extract owner and repo from GITHUB_REPOSITORY (format: owner/repo) const content = fs.readFileSync(log, "utf-8");
const [owner, repo] = process.env["GITHUB_REPOSITORY"]?.split("/") || []; const lines = content.split("\n");
const run_id = process.env["GITHUB_RUN_ID"];
if (!owner || !repo || !run_id || !correlation_id) { let tableEntries = [];
for (const line of lines) {
processLogLine(line, tableEntries);
}
if (tableEntries.length === 0) {
return; return;
} }
// Fetch job summary from API const insightsRow = `<p><b><a href="${insights_url}">📄 View Full Runtime Security Report & Recommended Policy</a></b></p>`;
const apiUrl = `${STEPSECURITY_API_URL}/github/${owner}/${repo}/actions/runs/${run_id}/correlation/${correlation_id}/job-markdown-summary`;
try { await core.summary.addSeparator().addRaw(`<h2>🛡 StepSecurity Report</h2>`);
const response = await fetch(apiUrl);
if (!response.ok) { tableEntries.sort((a, b) => {
console.error(`Failed to fetch job summary: ${response.status} ${response.statusText}`); if (a.status === "❌ Blocked" && b.status !== "❌ Blocked") {
return; return -1;
} else if (a.status !== "❌ Blocked" && b.status === "❌ Blocked") {
return 1;
} else {
return 0;
} }
});
const markdownSummary = await response.text(); tableEntries = tableEntries.slice(0, 3);
// Render the markdown summary using core.summary.addRaw await core.summary.addRaw(`
await core.summary.addRaw(markdownSummary).write(); <blockquote>
return; <p>Preview of the outbound network calls during this workflow run.</p></blockquote>
} catch (error) { <h3>Network Events</h3>
console.error(`Error fetching job summary: ${error}`); <table>
return; <thead>
} <tr>
<th>Process</th>
<th>Destination</th>
<th>Status</th>
</tr>
</thead>
<tbody>
${tableEntries
.map(
(entry) => `<tr>
<td><code>${entry.process}</code></td>
<td>${entry.domain.replace(/\.$/, "")}</td>
<td>${entry.status}</td>
</tr>`
)
.join("")}
<tr>
<td><code>...</code></td>
<td><code>...</code></td>
<td><code>...</code></td>
</tr>
</tbody>
</table>
${insightsRow}
`);
await core.summary
.addRaw(
`<p><i>Markdown generated by the <a href="https://github.com/step-security/harden-runner">Harden-Runner GitHub Action</a>.</i></p>`
)
.addSeparator()
.write();
} }
export const STATUS_HARDEN_RUNNER_UNAVAILABLE = "409"; export const STATUS_HARDEN_RUNNER_UNAVAILABLE = "409";
export const CONTAINER_MESSAGE = export const CONTAINER_MESSAGE =
"This job is running in a container. Such jobs can be monitored by installing Harden Runner in a custom VM image for GitHub-hosted runners."; "This job is running in a container. Harden Runner does not run in a container as it needs sudo access to run. This job will not be monitored.";
export const UNSUPPORTED_RUNNER_MESSAGE = export const UBUNTU_MESSAGE =
"This job is not running in a GitHub Actions Hosted Runner. Harden Runner is only supported on GitHub-hosted runners (Ubuntu, Windows, and macOS). This job will not be monitored."; "This job is not running in a GitHub Actions Hosted Runner Ubuntu VM. Harden Runner is only supported on Ubuntu VM. This job will not be monitored.";
export const SELF_HOSTED_RUNNER_MESSAGE = export const SELF_HOSTED_NO_AGENT_MESSAGE =
"This job is running on a self-hosted runner."; "This job is running on a self-hosted runner, but the runner does not have Harden-Runner installed. This job will not be monitored.";
export const HARDEN_RUNNER_UNAVAILABLE_MESSAGE = export const HARDEN_RUNNER_UNAVAILABLE_MESSAGE =
"Sorry, we are currently experiencing issues with the Harden Runner installation process. It is currently unavailable."; "Sorry, we are currently experiencing issues with the Harden Runner installation process. It is currently unavailable.";
export const ARC_RUNNER_MESSAGE = export const ARC_RUNNER_MESSAGE =
"Workflow is currently being executed in ARC based runner."; "Workflow is currently being executed in ARC based runner";
export const ARM64_RUNNER_MESSAGE =
"ARM runners are not supported in the Harden-Runner community tier.";
export const ARM64_WINDOWS_RUNNER_MESSAGE =
"Windows ARM runners are not yet supported by Harden-Runner.";
export const UBUNTU_SLIM_MESSAGE =
"This job is running on an ubuntu-slim runner. Harden Runner is not supported on ubuntu-slim runners. This job will not be monitored.";

View file

@ -1,8 +0,0 @@
export const STEPSECURITY_ENV = "agent"; // agent or int
export const STEPSECURITY_API_URL = `https://${STEPSECURITY_ENV}.api.stepsecurity.io/v1`;
export const STEPSECURITY_TELEMETRY_URL =
"https://prod.app-api.stepsecurity.io/v1";
export const STEPSECURITY_WEB_URL = "https://app.stepsecurity.io";

View file

@ -1,25 +1,13 @@
import * as common from "./common"; import * as common from "./common";
import * as core from "@actions/core"; import * as core from "@actions/core";
import isDocker from "is-docker"; import isDocker from "is-docker";
import { STEPSECURITY_WEB_URL } from "./configs";
import { isGithubHosted } from "./tls-inspect";
import { context } from "@actions/github";
import { isPlatformSupported } from "./utils";
(async () => { (async () => {
console.log("[harden-runner] main-step"); if (process.platform !== "linux") {
console.log(common.UBUNTU_MESSAGE);
const customProperties = context?.payload?.repository?.custom_properties || {};
if (customProperties["skip-harden-runner"] === "true") {
console.log("Skipping harden-runner: custom property 'skip-harden-runner' is set to 'true'");
return; return;
} }
if (isDocker()) {
if (!isPlatformSupported(process.platform)) {
console.log(common.UNSUPPORTED_RUNNER_MESSAGE);
return;
}
if (isGithubHosted() && isDocker()) {
console.log(common.CONTAINER_MESSAGE); console.log(common.CONTAINER_MESSAGE);
return; return;
} }
@ -32,10 +20,6 @@ import { isPlatformSupported } from "./utils";
return; return;
} }
if (process.env.STATE_isTLS === "false" && process.arch === "arm64") {
return;
}
if ( if (
core.getBooleanInput("disable-telemetry") && core.getBooleanInput("disable-telemetry") &&
core.getInput("egress-policy") === "block" core.getInput("egress-policy") === "block"
@ -44,7 +28,7 @@ import { isPlatformSupported } from "./utils";
"Telemetry will not be sent to StepSecurity API as disable-telemetry is set to true" "Telemetry will not be sent to StepSecurity API as disable-telemetry is set to true"
); );
} else { } else {
var web_url = STEPSECURITY_WEB_URL; var web_url = "https://app.stepsecurity.io";
common.printInfo(web_url); common.printInfo(web_url);
} }
})(); })();

View file

@ -1,278 +0,0 @@
import * as tc from "@actions/tool-cache";
import * as core from "@actions/core";
import * as cp from "child_process";
import * as path from "path";
import * as fs from "fs";
import { verifyChecksum } from "./checksum";
import { EOL } from "os";
import { ARM64_RUNNER_MESSAGE, ARM64_WINDOWS_RUNNER_MESSAGE } from "./common";
import { chownForFolder } from "./utils";
export async function installAgent(
isTLS: boolean,
configStr: string
): Promise<boolean> {
// Note: to avoid github rate limiting
const token = core.getInput("token", { required: true });
const auth = `token ${token}`;
const variant = process.arch === "x64" ? "amd64" : "arm64";
let downloadPath: string;
fs.appendFileSync(process.env.GITHUB_STATE, `isTLS=${isTLS}${EOL}`, {
encoding: "utf8",
});
if (isTLS) {
downloadPath = await tc.downloadTool(
`https://github.com/step-security/agent-ebpf/releases/download/v1.8.6/harden-runner_1.8.6_linux_${variant}.tar.gz`,
undefined,
auth
);
} else {
if (variant === "arm64") {
console.log(ARM64_RUNNER_MESSAGE);
return false;
}
downloadPath = await tc.downloadTool(
"https://github.com/step-security/agent/releases/download/v0.16.0/agent_0.16.0_linux_amd64.tar.gz",
undefined,
auth
);
}
if (!verifyChecksum(downloadPath, isTLS, variant, "linux")) {
return false;
}
const extractPath = await tc.extractTar(downloadPath);
let cmd = "cp",
args = [path.join(extractPath, "agent"), "/home/agent/agent"];
cp.execFileSync(cmd, args);
cp.execSync("chmod +x /home/agent/agent");
fs.writeFileSync("/home/agent/agent.json", configStr);
cmd = "sudo";
args = [
"cp",
path.join(__dirname, "agent.service"),
"/etc/systemd/system/agent.service",
];
cp.execFileSync(cmd, args);
cp.execSync("sudo systemctl daemon-reload");
cp.execSync("sudo service agent start", { timeout: 15000 });
return true;
}
export async function installAgentBravo(configStr: string): Promise<boolean> {
// Note: to avoid github rate limiting
const token = core.getInput("token", { required: true });
const auth = `token ${token}`;
const variant = process.arch === "x64" ? "amd64" : "arm64";
const downloadPath = await tc.downloadTool(
`https://github.com/step-security/agent-ebpf/releases/download/v1.8.6/harden-runner-bravo_1.8.6_linux_${variant}.tar.gz`,
undefined,
auth
);
if (!verifyChecksum(downloadPath, true, variant, "linux", "bravo")) {
return false;
}
const extractPath = await tc.extractTar(downloadPath);
cp.execFileSync("cp", [path.join(extractPath, "agent"), "/home/agent/agent"]);
cp.execSync("chmod +x /home/agent/agent");
fs.writeFileSync("/home/agent/agent.json", configStr);
const logStream = fs.openSync("/home/agent/agent.stdout", "a");
const agentProcess = cp.spawn("sudo", ["/home/agent/agent"], {
cwd: "/home/agent",
detached: true,
stdio: ["ignore", logStream, logStream],
});
agentProcess.unref();
const agentStatus = "/home/agent/agent.status";
const deadline = Date.now() + 10000;
while (true) {
if (!fs.existsSync(agentStatus)) {
if (Date.now() >= deadline) {
console.log("timed out waiting for bravo agent");
if (fs.existsSync("/home/agent/agent.stdout")) {
console.log(fs.readFileSync("/home/agent/agent.stdout", "utf-8"));
}
if (fs.existsSync("/home/agent/agent.log")) {
console.log(fs.readFileSync("/home/agent/agent.log", "utf-8"));
}
break;
}
await new Promise((resolve) => setTimeout(resolve, 300));
} else {
console.log(fs.readFileSync(agentStatus, "utf-8"));
break;
}
}
return true;
}
export async function installMacosAgent(configStr: string): Promise<boolean> {
const token = core.getInput("token", { required: true });
const auth = `token ${token}`;
try {
// Create working directory
core.info("Creating /opt/step-security directory...");
cp.execSync("sudo mkdir -p /opt/step-security");
chownForFolder(process.env.USER, "/opt/step-security");
core.info("✓ Successfully created /opt/step-security directory");
// Create agent configuration file
core.info("Creating agent.json");
fs.writeFileSync("/opt/step-security/agent.json", configStr);
core.info(
"✓ Successfully created agent.json at /opt/step-security/agent.json"
);
// Download installer package
const downloadUrl =
"https://github.com/step-security/agent-releases/releases/download/v0.0.5-mac/macos-installer-0.0.5.tar.gz";
core.info(`Downloading macOS installer.. : ${downloadUrl}`);
const downloadPath = await tc.downloadTool(downloadUrl, undefined, auth);
core.info(`✓ Successfully downloaded installer to: ${downloadPath}`);
// Verify SHA256 checksum
core.info("Verifying SHA256 checksum of downloaded tar file...");
if (!verifyChecksum(downloadPath, false, "", "darwin")) {
return false;
}
// Extract installer package
core.info("Extracting installer...");
const extractPath = await tc.extractTar(downloadPath);
core.info(`✓ Successfully extracted installer to: ${extractPath}`);
// Copy Installer binary to /opt/step-security
const installerSourcePath = path.join(extractPath, "Installer");
const installerBinaryPath = "/opt/step-security/Installer";
core.info(
`Copying Installer from ${installerSourcePath} to /opt/step-security...`
);
cp.execFileSync("cp", [installerSourcePath, installerBinaryPath]);
core.info("✓ Successfully copied Installer to /opt/step-security");
// Verify installer binary exists
if (!fs.existsSync(installerBinaryPath)) {
throw new Error(
"Installer binary not found at /opt/step-security/Installer"
);
}
core.info("✓ Installer binary verified");
// Make installer executable
core.info("Making installer executable...");
cp.execSync(`chmod +x "${installerBinaryPath}"`);
core.info("✓ Installer is now executable");
// Run installer
core.info("Running installer...");
cp.execSync(
`sudo "${installerBinaryPath}" -workdir /opt/step-security >> /opt/step-security/agent.log 2>&1`,
{
shell: "/bin/bash",
timeout: 10000, // 10 second timeout
}
);
core.info("✓ Installer completed successfully");
core.info("✅ macOS agent installation completed successfully");
return true;
} catch (error) {
core.error(`❌ Failed to install macOS agent: ${error}`);
if (error instanceof Error && error.stack) {
core.debug(error.stack);
}
return false;
}
}
export async function installWindowsAgent(configStr: string): Promise<boolean> {
const token = core.getInput("token", { required: true });
const auth = `token ${token}`;
const variant = process.arch === "x64" ? "amd64" : "arm64";
if (variant === "arm64") {
console.log(ARM64_WINDOWS_RUNNER_MESSAGE);
return false;
}
const agentDir = "C:\\agent";
core.info(`Creating agent directory: ${agentDir}`);
if (!fs.existsSync(agentDir)) {
fs.mkdirSync(agentDir, { recursive: true });
}
fs.appendFileSync(process.env.GITHUB_STATE, `agentDir=${agentDir}${EOL}`, {
encoding: "utf8",
});
const agentExePath = path.join(agentDir, "agent.exe");
const downloadPath = await tc.downloadTool(
`https://github.com/step-security/agent-releases/releases/download/v1.0.2-win/harden-runner-agent-windows_1.0.2_windows_amd64.tar.gz`,
undefined,
auth
);
// validate the checksum
if (!verifyChecksum(downloadPath, false, variant, process.platform)) {
return false;
}
const extractPath = await tc.extractTar(downloadPath);
const extractedAgentPath = path.join(extractPath, "agent.exe");
fs.copyFileSync(extractedAgentPath, agentExePath);
core.info(`Copied agent from ${extractedAgentPath} to ${agentExePath}`);
const configPath = path.join(agentDir, "config.json");
fs.writeFileSync(configPath, configStr);
core.info(`Created config file: ${configPath}`);
core.info("Starting Windows Agent...");
try {
const logPath = path.join(agentDir, "agent.log");
const logStream = fs.openSync(logPath, "a");
core.info(`Agent logs will be written to: ${logPath}`);
const agentProcess = cp.spawn(agentExePath, [], {
cwd: agentDir,
detached: true,
stdio: ["ignore", logStream, logStream],
windowsHide: false,
shell: false,
});
const pidFile = path.join(agentDir, "agent.pid");
fs.writeFileSync(pidFile, agentProcess.pid.toString());
core.info(`Agent process started with PID: ${agentProcess.pid}`);
core.info(`PID saved to: ${pidFile}`);
agentProcess.unref();
core.info("Windows Agent process started successfully");
return true;
} catch (error) {
const errorMessage = error instanceof Error ? error.message : String(error);
core.setFailed(`Failed to start Windows agent process: ${errorMessage}`);
return false;
}
}

View file

@ -4,20 +4,12 @@ export interface Configuration {
correlation_id: string; correlation_id: string;
working_directory: string; working_directory: string;
api_url: string; api_url: string;
telemetry_url: string;
allowed_endpoints: string; allowed_endpoints: string;
egress_policy: string; egress_policy: string;
disable_telemetry: boolean; disable_telemetry: boolean;
disable_sudo: boolean; disable_sudo: boolean;
disable_sudo_and_containers: boolean;
disable_file_monitoring: boolean; disable_file_monitoring: boolean;
is_github_hosted: boolean;
private: string; private: string;
is_debug: boolean;
one_time_key: string;
api_key: string;
use_policy_store: boolean;
deploy_on_self_hosted_vm: boolean;
} }
export interface PolicyResponse { export interface PolicyResponse {
@ -25,9 +17,7 @@ export interface PolicyResponse {
policyName?: string; policyName?: string;
allowed_endpoints?: string[]; allowed_endpoints?: string[];
disable_sudo?: boolean; disable_sudo?: boolean;
disable_sudo_and_containers?: boolean;
disable_file_monitoring?: boolean; disable_file_monitoring?: boolean;
disable_telemetry?: boolean; disable_telemetry?: boolean;
egress_policy?: string; egress_policy?: string;
policy_name?: string;
} }

View file

@ -1,7 +1,6 @@
import nock from "nock"; import nock from "nock";
import { fetchPolicy, mergeConfigs } from "./policy-utils"; import { API_ENDPOINT, fetchPolicy, mergeConfigs } from "./policy-utils";
import { Configuration, PolicyResponse } from "./interfaces"; import { Configuration, PolicyResponse } from "./interfaces";
import { STEPSECURITY_API_URL } from "./configs";
test("success: fetching policy", async () => { test("success: fetching policy", async () => {
let owner = "h0x0er"; let owner = "h0x0er";
@ -15,7 +14,7 @@ test("success: fetching policy", async () => {
disable_sudo: false, disable_sudo: false,
disable_file_monitoring: false, disable_file_monitoring: false,
}; };
const policyScope = nock(`${STEPSECURITY_API_URL}`) const policyScope = nock(`${API_ENDPOINT}`)
.get(`/github/${owner}/actions/policies/${policyName}`) .get(`/github/${owner}/actions/policies/${policyName}`)
.reply(200, response); .reply(200, response);
@ -32,20 +31,12 @@ test("merge configs", async () => {
correlation_id: "aaaaa", correlation_id: "aaaaa",
working_directory: "/xyz", working_directory: "/xyz",
api_url: "xyz", api_url: "xyz",
telemetry_url: "xyz",
allowed_endpoints: "", allowed_endpoints: "",
egress_policy: "audit", egress_policy: "audit",
disable_telemetry: false, disable_telemetry: false,
disable_sudo: false, disable_sudo: false,
disable_sudo_and_containers: false,
disable_file_monitoring: false, disable_file_monitoring: false,
private: "true", private: "true",
is_github_hosted: true,
is_debug: false,
one_time_key: "",
api_key: "",
use_policy_store: false,
deploy_on_self_hosted_vm: false,
}; };
let policyResponse: PolicyResponse = { let policyResponse: PolicyResponse = {
owner: "h0x0er", owner: "h0x0er",
@ -63,331 +54,14 @@ test("merge configs", async () => {
correlation_id: "aaaaa", correlation_id: "aaaaa",
working_directory: "/xyz", working_directory: "/xyz",
api_url: "xyz", api_url: "xyz",
telemetry_url: "xyz",
allowed_endpoints: "github.com:443 google.com:443", allowed_endpoints: "github.com:443 google.com:443",
egress_policy: "audit", egress_policy: "audit",
disable_telemetry: false, disable_telemetry: false,
disable_sudo: false, disable_sudo: false,
disable_sudo_and_containers: false,
disable_file_monitoring: false, disable_file_monitoring: false,
private: "true", private: "true",
is_github_hosted: true,
is_debug: false,
one_time_key: "",
api_key: "",
use_policy_store: false,
deploy_on_self_hosted_vm: false,
}; };
localConfig = mergeConfigs(localConfig, policyResponse); localConfig = mergeConfigs(localConfig, policyResponse);
expect(localConfig).toStrictEqual(expectedConfiguration); expect(localConfig).toStrictEqual(expectedConfiguration);
}); });
// ==================== additional fetchPolicy tests ====================
test("fetchPolicy throws when idToken is empty", async () => {
await expect(fetchPolicy("owner", "policy1", "")).rejects.toThrow(
"[PolicyFetch]: id-token in empty"
);
});
test("fetchPolicy retries on failure and succeeds", async () => {
const owner = "test-owner";
const policyName = "test-policy";
const response = {
allowed_endpoints: ["example.com:443"],
egress_policy: "block",
};
nock(`${STEPSECURITY_API_URL}`)
.get(`/github/${owner}/actions/policies/${policyName}`)
.replyWithError("connection timeout");
nock(`${STEPSECURITY_API_URL}`)
.get(`/github/${owner}/actions/policies/${policyName}`)
.reply(200, response);
const policy = await fetchPolicy(owner, policyName, "token123");
expect(policy).toStrictEqual(response);
});
test("fetchPolicy throws after all retries exhausted", async () => {
const owner = "test-owner";
const policyName = "test-policy";
nock(`${STEPSECURITY_API_URL}`)
.get(`/github/${owner}/actions/policies/${policyName}`)
.times(3)
.replyWithError("connection timeout");
await expect(
fetchPolicy(owner, policyName, "token123")
).rejects.toThrow("[Policy Fetch]");
});
test("fetchPolicy preserves statusCode from error", async () => {
const owner = "test-owner";
const policyName = "test-policy";
const errorWithStatus = new Error("Not Found");
(errorWithStatus as any).statusCode = 404;
nock(`${STEPSECURITY_API_URL}`)
.get(`/github/${owner}/actions/policies/${policyName}`)
.times(3)
.replyWithError(errorWithStatus);
try {
await fetchPolicy(owner, policyName, "token123");
fail("should have thrown");
} catch (err) {
expect(err.message).toContain("[Policy Fetch]");
}
});
// ==================== fetchPolicyFromStore ====================
import { fetchPolicyFromStore } from "./policy-utils";
const policyStoreQueryString = (workflow: string, runId: string, correlationId: string) =>
`workflow=${encodeURIComponent(workflow)}&run_id=${encodeURIComponent(runId)}&correlationId=${encodeURIComponent(correlationId)}`;
test("success: fetches policy from store", async () => {
const owner = "test-owner";
const repo = "test-repo";
const workflow = "ci.yml";
const runId = "12345";
const correlationId = "abc-def";
const response = {
allowed_endpoints: ["registry.npmjs.org:443", "github.com:443"],
egress_policy: "block",
disable_sudo: true,
disable_file_monitoring: false,
};
nock(`${STEPSECURITY_API_URL}`)
.get(`/github/${owner}/${repo}/actions/policies/workflow-policy?${policyStoreQueryString(workflow, runId, correlationId)}`)
.reply(200, response);
const result = await fetchPolicyFromStore(owner, repo, "my-api-key", workflow, runId, correlationId);
expect(result).toStrictEqual(response);
});
test("fetchPolicyFromStore throws when apiKey is empty", async () => {
await expect(
fetchPolicyFromStore("owner", "repo", "", "ci.yml", "123", "abc")
).rejects.toThrow("[PolicyStoreFetch]: api-key is empty");
});
test("fetchPolicyFromStore returns null when policy not found (404)", async () => {
const owner = "test-owner";
const repo = "test-repo";
const workflow = "ci.yml";
const runId = "12345";
const correlationId = "abc-def";
nock(`${STEPSECURITY_API_URL}`)
.get(`/github/${owner}/${repo}/actions/policies/workflow-policy?${policyStoreQueryString(workflow, runId, correlationId)}`)
.reply(404, { message: "not found" });
const result = await fetchPolicyFromStore(owner, repo, "my-api-key", workflow, runId, correlationId);
expect(result).toBeNull();
});
test("fetchPolicyFromStore returns null when API returns empty policy", async () => {
const owner = "test-owner";
const repo = "nonexistent-repo";
const workflow = "ci.yml";
const runId = "12345";
const correlationId = "abc-def";
nock(`${STEPSECURITY_API_URL}`)
.get(`/github/${owner}/${repo}/actions/policies/workflow-policy?${policyStoreQueryString(workflow, runId, correlationId)}`)
.reply(200, { allowed_endpoints: [], egress_policy: "", policy_name: "" });
const result = await fetchPolicyFromStore(owner, repo, "my-api-key", workflow, runId, correlationId);
expect(result).toBeNull();
});
test("fetchPolicyFromStore retries on failure and succeeds", async () => {
const owner = "test-owner";
const repo = "test-repo";
const workflow = "ci.yml";
const runId = "12345";
const correlationId = "abc-def";
const response = {
allowed_endpoints: ["example.com:443"],
egress_policy: "audit",
};
nock(`${STEPSECURITY_API_URL}`)
.get(`/github/${owner}/${repo}/actions/policies/workflow-policy?${policyStoreQueryString(workflow, runId, correlationId)}`)
.replyWithError("timeout");
nock(`${STEPSECURITY_API_URL}`)
.get(`/github/${owner}/${repo}/actions/policies/workflow-policy?${policyStoreQueryString(workflow, runId, correlationId)}`)
.reply(200, response);
const result = await fetchPolicyFromStore(owner, repo, "my-api-key", workflow, runId, correlationId);
expect(result).toStrictEqual(response);
});
test("fetchPolicyFromStore throws after all retries exhausted", async () => {
const owner = "test-owner";
const repo = "test-repo";
const workflow = "ci.yml";
const runId = "12345";
const correlationId = "abc-def";
nock(`${STEPSECURITY_API_URL}`)
.get(`/github/${owner}/${repo}/actions/policies/workflow-policy?${policyStoreQueryString(workflow, runId, correlationId)}`)
.times(3)
.replyWithError("connection refused");
await expect(
fetchPolicyFromStore(owner, repo, "my-api-key", workflow, runId, correlationId)
).rejects.toThrow("[Policy Store Fetch]");
});
test("fetchPolicyFromStore preserves statusCode from error", async () => {
const owner = "test-owner";
const repo = "test-repo";
const workflow = "ci.yml";
const runId = "12345";
const correlationId = "abc-def";
const errorWithStatus = new Error("Unauthorized");
(errorWithStatus as any).statusCode = 401;
nock(`${STEPSECURITY_API_URL}`)
.get(`/github/${owner}/${repo}/actions/policies/workflow-policy?${policyStoreQueryString(workflow, runId, correlationId)}`)
.times(3)
.replyWithError(errorWithStatus);
try {
await fetchPolicyFromStore(owner, repo, "my-api-key", workflow, runId, correlationId);
fail("should have thrown");
} catch (err) {
expect(err.message).toContain("[Policy Store Fetch]");
}
});
test("fetchPolicyFromStore sends correct authorization header", async () => {
const owner = "test-owner";
const repo = "test-repo";
const apiKey = "secret-key-123";
const workflow = "ci.yml";
const runId = "12345";
const correlationId = "abc-def";
nock(`${STEPSECURITY_API_URL}`, {
reqheaders: {
Authorization: `vm-api-key ${apiKey}`,
Source: "github-actions",
},
})
.get(`/github/${owner}/${repo}/actions/policies/workflow-policy?${policyStoreQueryString(workflow, runId, correlationId)}`)
.reply(200, { allowed_endpoints: [], egress_policy: "audit" });
const result = await fetchPolicyFromStore(owner, repo, apiKey, workflow, runId, correlationId);
expect(result).toStrictEqual({
allowed_endpoints: [],
egress_policy: "audit",
});
});
// ==================== additional mergeConfigs tests ====================
test("mergeConfigs does not override local allowed_endpoints if not empty", () => {
let localConfig: Configuration = {
repo: "test/repo",
run_id: "xyx",
correlation_id: "aaaaa",
working_directory: "/xyz",
api_url: "xyz",
telemetry_url: "xyz",
allowed_endpoints: "local.endpoint:443",
egress_policy: "audit",
disable_telemetry: false,
disable_sudo: false,
disable_sudo_and_containers: false,
disable_file_monitoring: false,
private: "true",
is_github_hosted: true,
is_debug: false,
one_time_key: "",
api_key: "",
use_policy_store: false,
deploy_on_self_hosted_vm: false,
};
let policyResponse: PolicyResponse = {
allowed_endpoints: ["remote.endpoint:443"],
egress_policy: "block",
};
localConfig = mergeConfigs(localConfig, policyResponse);
expect(localConfig.allowed_endpoints).toBe("local.endpoint:443");
expect(localConfig.egress_policy).toBe("block");
});
test("mergeConfigs overrides disable_sudo_and_containers from remote", () => {
let localConfig: Configuration = {
repo: "test/repo",
run_id: "xyx",
correlation_id: "aaaaa",
working_directory: "/xyz",
api_url: "xyz",
telemetry_url: "xyz",
allowed_endpoints: "",
egress_policy: "audit",
disable_telemetry: false,
disable_sudo: false,
disable_sudo_and_containers: false,
disable_file_monitoring: false,
private: "true",
is_github_hosted: true,
is_debug: false,
one_time_key: "",
api_key: "",
use_policy_store: false,
deploy_on_self_hosted_vm: false,
};
let policyResponse: PolicyResponse = {
allowed_endpoints: [],
disable_sudo_and_containers: true,
};
localConfig = mergeConfigs(localConfig, policyResponse);
expect(localConfig.disable_sudo_and_containers).toBe(true);
});
test("mergeConfigs does not override fields when remote values are undefined", () => {
let localConfig: Configuration = {
repo: "test/repo",
run_id: "xyx",
correlation_id: "aaaaa",
working_directory: "/xyz",
api_url: "xyz",
telemetry_url: "xyz",
allowed_endpoints: "",
egress_policy: "block",
disable_telemetry: false,
disable_sudo: true,
disable_sudo_and_containers: true,
disable_file_monitoring: true,
private: "true",
is_github_hosted: true,
is_debug: false,
one_time_key: "",
api_key: "",
use_policy_store: false,
deploy_on_self_hosted_vm: false,
};
let policyResponse: PolicyResponse = {
allowed_endpoints: [],
};
localConfig = mergeConfigs(localConfig, policyResponse);
expect(localConfig.disable_sudo).toBe(true);
expect(localConfig.disable_sudo_and_containers).toBe(true);
expect(localConfig.disable_file_monitoring).toBe(true);
expect(localConfig.egress_policy).toBe("block");
});

View file

@ -1,17 +1,19 @@
import { HttpClient } from "@actions/http-client"; import { HttpClient } from "@actions/http-client";
import { PolicyResponse, Configuration } from "./interfaces"; import { PolicyResponse, Configuration } from "./interfaces";
import { STEPSECURITY_API_URL } from "./configs";
export const API_ENDPOINT = "https://agent.api.stepsecurity.io/v1";
export async function fetchPolicy( export async function fetchPolicy(
owner: string, owner: string,
policyName: string, policyName: string,
idToken: string idToken: string
): Promise<PolicyResponse> { ): Promise<PolicyResponse> {
if (idToken === "") { if (idToken === "") {
throw new Error("[PolicyFetch]: id-token in empty"); throw new Error("[PolicyFetch]: id-token in empty");
} }
let policyEndpoint = `${STEPSECURITY_API_URL}/github/${owner}/actions/policies/${policyName}`; let policyEndpoint = `${API_ENDPOINT}/github/${owner}/actions/policies/${policyName}`;
let httpClient = new HttpClient(); let httpClient = new HttpClient();
@ -23,92 +25,28 @@ export async function fetchPolicy(
let err = undefined; let err = undefined;
let retry = 0; let retry = 0;
while (retry < 3) { while(retry < 3){
try { try{
console.log(`Attempt: ${retry + 1}`); console.log(`Attempt: ${retry+1}`)
response = await httpClient.getJson<PolicyResponse>( response = await httpClient.getJson<PolicyResponse>(
policyEndpoint, policyEndpoint,
headers headers
); );
break; break;
} catch (e) { }catch(e){
err = e; err = e
} }
retry += 1; retry += 1
await sleep(1000); await sleep(1000);
} }
if (response === undefined && err !== undefined) { if(response === undefined && err !== undefined){
// Preserve the original error's statusCode if it exists throw new Error(`[Policy Fetch] ${err}`)
const error = new Error(`[Policy Fetch] ${err}`); }else{
if (err.statusCode !== undefined) {
(error as any).statusCode = err.statusCode;
}
throw error;
} else {
return response.result; return response.result;
} }
} }
export async function fetchPolicyFromStore(
owner: string,
repo: string,
apiKey: string,
workflow: string,
runId: string,
correlationId: string
): Promise<PolicyResponse | null> {
if (apiKey === "") {
throw new Error("[PolicyStoreFetch]: api-key is empty");
}
let policyEndpoint = `${STEPSECURITY_API_URL}/github/${owner}/${repo}/actions/policies/workflow-policy?workflow=${encodeURIComponent(workflow)}&run_id=${encodeURIComponent(runId)}&correlationId=${encodeURIComponent(correlationId)}`;
let httpClient = new HttpClient();
let headers = {};
headers["Authorization"] = `vm-api-key ${apiKey}`;
headers["Source"] = "github-actions";
let response = undefined;
let err = undefined;
let retry = 0;
while (retry < 3) {
try {
console.log(`Attempt: ${retry + 1}`);
response = await httpClient.getJson<PolicyResponse>(
policyEndpoint,
headers
);
break;
} catch (e) {
err = e;
}
retry += 1;
await sleep(1000);
}
if (response === undefined && err !== undefined) {
const error = new Error(`[Policy Store Fetch] ${err}`);
if (err.statusCode !== undefined) {
(error as any).statusCode = err.statusCode;
}
throw error;
}
if (response.statusCode === 404) {
return null;
}
const result = response.result;
if (!result || (!result.egress_policy && (!result.allowed_endpoints || result.allowed_endpoints.length === 0))) {
return null;
}
return result;
}
export function mergeConfigs( export function mergeConfigs(
localConfig: Configuration, localConfig: Configuration,
remoteConfig: PolicyResponse remoteConfig: PolicyResponse
@ -120,10 +58,6 @@ export function mergeConfigs(
localConfig.disable_sudo = remoteConfig.disable_sudo; localConfig.disable_sudo = remoteConfig.disable_sudo;
} }
if (remoteConfig.disable_sudo_and_containers !== undefined) {
localConfig.disable_sudo_and_containers = remoteConfig.disable_sudo_and_containers;
}
if (remoteConfig.disable_file_monitoring !== undefined) { if (remoteConfig.disable_file_monitoring !== undefined) {
localConfig.disable_file_monitoring = remoteConfig.disable_file_monitoring; localConfig.disable_file_monitoring = remoteConfig.disable_file_monitoring;
} }
@ -134,7 +68,7 @@ export function mergeConfigs(
return localConfig; return localConfig;
} }
function sleep(ms: number) { function sleep(ms) {
return new Promise((resolve) => { return new Promise((resolve) => {
setTimeout(resolve, ms); setTimeout(resolve, ms);
}); });

View file

@ -5,6 +5,8 @@ import * as httpm from "@actions/http-client";
import * as path from "path"; import * as path from "path";
import { v4 as uuidv4 } from "uuid"; import { v4 as uuidv4 } from "uuid";
import * as common from "./common"; import * as common from "./common";
import * as tc from "@actions/tool-cache";
import { verifyChecksum } from "./checksum";
import isDocker from "is-docker"; import isDocker from "is-docker";
import { context } from "@actions/github"; import { context } from "@actions/github";
import { EOL } from "os"; import { EOL } from "os";
@ -16,64 +18,27 @@ import {
isValidEvent, isValidEvent,
} from "./cache"; } from "./cache";
import { Configuration, PolicyResponse } from "./interfaces"; import { Configuration, PolicyResponse } from "./interfaces";
import { fetchPolicy, fetchPolicyFromStore, mergeConfigs } from "./policy-utils"; import { fetchPolicy, mergeConfigs } from "./policy-utils";
import * as cache from "@actions/cache";
import { getCacheEntry } from "@actions/cache/lib/internal/cacheHttpClient"; import { getCacheEntry } from "@actions/cache/lib/internal/cacheHttpClient";
import * as cacheTwirpClient from "@actions/cache/lib/internal/shared/cacheTwirpClient";
import { GetCacheEntryDownloadURLRequest } from "@actions/cache/lib/generated/results/api/v1/cache";
import { getCacheServiceVersion } from "@actions/cache/lib/internal/config";
import * as utils from "@actions/cache/lib/internal/cacheUtils"; import * as utils from "@actions/cache/lib/internal/cacheUtils";
import { isARCRunner, sendAllowedEndpoints } from "./arc-runner"; import { isArcRunner, sendAllowedEndpoints } from "./arc-runner";
import {
STEPSECURITY_API_URL,
STEPSECURITY_TELEMETRY_URL,
STEPSECURITY_WEB_URL,
} from "./configs";
import { isGithubHosted, isTLSEnabled } from "./tls-inspect";
import {
installAgent,
installAgentBravo,
installMacosAgent,
installWindowsAgent,
} from "./install-agent";
import { chownForFolder, detectThirdPartyRunnerProvider, isAgentInstalled, isPlatformSupported, shouldDeployAgentOnSelfHosted } from "./utils";
import { buildBravoConfig } from "./bravo-config";
interface MonitorResponse {
runner_ip_address?: string;
one_time_key?: string;
monitoring_started?: boolean;
}
(async () => { (async () => {
try { try {
console.log("[harden-runner] pre-step"); if (process.platform !== "linux") {
console.log(common.UBUNTU_MESSAGE);
const customProperties = context?.payload?.repository?.custom_properties || {};
if (customProperties["skip-harden-runner"] === "true") {
console.log("Skipping harden-runner: custom property 'skip-harden-runner' is set to 'true'");
return; return;
} }
if (isDocker()) {
if (!isPlatformSupported(process.platform)) {
console.log(common.UNSUPPORTED_RUNNER_MESSAGE);
return;
}
if (isGithubHosted() && isDocker()) {
console.log(common.CONTAINER_MESSAGE); console.log(common.CONTAINER_MESSAGE);
return; return;
} }
if (isGithubHosted() && process.platform === "linux" && !process.env.USER) {
console.log(common.UBUNTU_SLIM_MESSAGE);
return;
}
var correlation_id = uuidv4(); var correlation_id = uuidv4();
var api_url = STEPSECURITY_API_URL; var env = "agent";
var web_url = STEPSECURITY_WEB_URL; var api_url = `https://${env}.api.stepsecurity.io/v1`;
var web_url = "https://app.stepsecurity.io";
let confg: Configuration = { let confg: Configuration = {
repo: process.env["GITHUB_REPOSITORY"], repo: process.env["GITHUB_REPOSITORY"],
@ -81,68 +46,16 @@ interface MonitorResponse {
correlation_id: correlation_id, correlation_id: correlation_id,
working_directory: process.env["GITHUB_WORKSPACE"], working_directory: process.env["GITHUB_WORKSPACE"],
api_url: api_url, api_url: api_url,
telemetry_url: STEPSECURITY_TELEMETRY_URL,
allowed_endpoints: core.getInput("allowed-endpoints"), allowed_endpoints: core.getInput("allowed-endpoints"),
egress_policy: core.getInput("egress-policy"), egress_policy: core.getInput("egress-policy"),
disable_telemetry: core.getBooleanInput("disable-telemetry"), disable_telemetry: core.getBooleanInput("disable-telemetry"),
disable_sudo: core.getBooleanInput("disable-sudo"), disable_sudo: core.getBooleanInput("disable-sudo"),
disable_sudo_and_containers: core.getBooleanInput(
"disable-sudo-and-containers"
),
disable_file_monitoring: core.getBooleanInput("disable-file-monitoring"), disable_file_monitoring: core.getBooleanInput("disable-file-monitoring"),
private: context?.payload?.repository?.private || false, private: context?.payload?.repository?.private || false,
is_github_hosted: isGithubHosted(),
is_debug: core.isDebug(),
one_time_key: "",
api_key: core.getInput("api-key"),
use_policy_store: core.getBooleanInput("use-policy-store"),
deploy_on_self_hosted_vm: core.getBooleanInput("deploy-on-self-hosted-vm"),
}; };
if (confg.api_key !== "") {
core.setSecret(confg.api_key);
}
let policyName = core.getInput("policy"); let policyName = core.getInput("policy");
if (confg.use_policy_store) { if (policyName !== "") {
console.log(`Fetching policy from policy store`);
if (confg.api_key === "") {
core.warning(
"api-key is not set while use-policy-store is true. Defaulting to audit mode."
);
confg.egress_policy = "audit";
} else {
try {
const repoName = (process.env["GITHUB_REPOSITORY"] || "").split("/")[1] || "";
const workflowRef = process.env["GITHUB_WORKFLOW_REF"] || "";
const workflow = workflowRef.replace(/.*\.github\/workflows\//, "").replace(/@.*/, "");
let result: PolicyResponse | null = await fetchPolicyFromStore(
context.repo.owner,
repoName,
confg.api_key,
workflow,
confg.run_id,
confg.correlation_id
);
if (result !== null) {
core.info(`Policy found: ${result.policy_name || "unnamed"}`);
confg = mergeConfigs(confg, result);
} else {
core.info("No policy found in policy store. Defaulting to audit mode.");
confg.egress_policy = "audit";
}
} catch (err) {
core.info(`[!] ${err}`);
if (err.statusCode >= 400 && err.statusCode < 500) {
core.info("Policy not found in policy store. Defaulting to audit mode.");
confg.egress_policy = "audit";
} else {
core.error(`Unexpected error fetching from policy store: ${err}. Falling back to audit mode.`);
confg.egress_policy = "audit";
}
}
}
} else if (policyName !== "") {
console.log(`Fetching policy from API with name: ${policyName}`); console.log(`Fetching policy from API with name: ${policyName}`);
try { try {
let idToken: string = await core.getIDToken(); let idToken: string = await core.getIDToken();
@ -154,18 +67,7 @@ interface MonitorResponse {
confg = mergeConfigs(confg, result); confg = mergeConfigs(confg, result);
} catch (err) { } catch (err) {
core.info(`[!] ${err}`); core.info(`[!] ${err}`);
// Only fail the job if ID token is not available core.setFailed(err);
if (err.message && err.message.includes('Unable to get ACTIONS_ID_TOKEN_REQUEST')) {
core.setFailed('Policy store requires id-token write permission as it uses OIDC to fetch the policy from StepSecurity API. Please add "id-token: write" to your job permissions.');
} else {
// Handle different HTTP status codes
if (err.statusCode >= 400 && err.statusCode < 500) {
core.error('Policy not found');
} else {
core.error(`Unexpected error occurred: ${err}. Falling back to egress policy audit`);
confg.egress_policy = 'audit';
}
}
} }
} }
fs.appendFileSync( fs.appendFileSync(
@ -175,13 +77,6 @@ interface MonitorResponse {
encoding: "utf8", encoding: "utf8",
} }
); );
fs.appendFileSync(
process.env.GITHUB_STATE,
`disableSudoAndContainers=${confg.disable_sudo_and_containers}${EOL}`,
{
encoding: "utf8",
}
);
core.info(`[!] Current Configuration: \n${JSON.stringify(confg)}\n`); core.info(`[!] Current Configuration: \n${JSON.stringify(confg)}\n`);
if (confg.egress_policy !== "audit" && confg.egress_policy !== "block") { if (confg.egress_policy !== "audit" && confg.egress_policy !== "block") {
@ -198,88 +93,31 @@ interface MonitorResponse {
core.setFailed("disable-telemetry must be a boolean value"); core.setFailed("disable-telemetry must be a boolean value");
} }
if (isValidEvent() && confg.egress_policy === "block") { if (isValidEvent()) {
try { try {
const cacheResult = await cache.saveCache( let compressionMethod: CompressionMethod =
[path.join(__dirname, "cache.txt")], await utils.getCompressionMethod();
cacheKey
let cacheFilePath = path.join(__dirname, "cache.txt");
cacheFilePath = cacheFilePath.replace("/pre/", "/post/");
core.info(`cacheFilePath ${cacheFilePath}`);
const cacheEntry: ArtifactCacheEntry = await getCacheEntry(
[cacheKey],
[cacheFilePath],
{
compressionMethod: compressionMethod,
}
); );
console.log(cacheResult); const url = new URL(cacheEntry.archiveLocation);
core.info(`Adding cacheHost: ${url.hostname}:443 to allowed-endpoints`);
confg.allowed_endpoints += ` ${url.hostname}:443`;
} catch (exception) { } catch (exception) {
console.log(exception); // some exception has occurred.
} core.info(`Unable to fetch cacheURL`);
if (confg.egress_policy === "block") {
const cacheServiceVersion: string = getCacheServiceVersion(); core.info("Switching egress-policy to audit mode");
confg.egress_policy = "audit";
switch (cacheServiceVersion) { }
case "v2":
core.info(`cache version: v2`);
try {
const cacheFilePath = path.join(__dirname, "cache.txt");
core.info(`cacheFilePath ${cacheFilePath}`);
const twirpClient = cacheTwirpClient.internalCacheTwirpClient();
const compressionMethod = await utils.getCompressionMethod();
const request: GetCacheEntryDownloadURLRequest = {
key: cacheKey,
restoreKeys: [],
version: utils.getCacheVersion(
[cacheFilePath],
compressionMethod,
false
),
};
const response = await twirpClient.GetCacheEntryDownloadURL(
request
);
const url = new URL(response.signedDownloadUrl);
core.info(
`Adding cacheHost: ${url.hostname}:443 to allowed-endpoints`
);
confg.allowed_endpoints += ` ${url.hostname}:443`;
} catch (e) {
core.info(`Unable to fetch cacheURL ${e}`);
if (confg.egress_policy === "block") {
core.info("Switching egress-policy to audit mode");
confg.egress_policy = "audit";
}
}
break;
case "v1":
core.info(`cache version: v1`);
try {
const compressionMethod: CompressionMethod =
await utils.getCompressionMethod();
const cacheFilePath = path.join(__dirname, "cache.txt");
core.info(`cacheFilePath ${cacheFilePath}`);
const cacheEntry: ArtifactCacheEntry = await getCacheEntry(
[cacheKey],
[cacheFilePath],
{
compressionMethod: compressionMethod,
}
);
const url = new URL(cacheEntry.archiveLocation);
core.info(
`Adding cacheHost: ${url.hostname}:443 to allowed-endpoints`
);
confg.allowed_endpoints += ` ${url.hostname}:443`;
} catch (exception) {
// some exception has occurred.
core.info(`Unable to fetch cacheURL ${exception}`);
if (confg.egress_policy === "block") {
core.info("Switching egress-policy to audit mode");
confg.egress_policy = "audit";
}
}
} }
} }
@ -287,7 +125,7 @@ interface MonitorResponse {
common.printInfo(web_url); common.printInfo(web_url);
} }
if (isARCRunner()) { if (isArcRunner()) {
console.log(`[!] ${common.ARC_RUNNER_MESSAGE}`); console.log(`[!] ${common.ARC_RUNNER_MESSAGE}`);
if (confg.egress_policy === "block") { if (confg.egress_policy === "block") {
sendAllowedEndpoints(confg.allowed_endpoints); sendAllowedEndpoints(confg.allowed_endpoints);
@ -298,88 +136,37 @@ interface MonitorResponse {
const runnerName = process.env.RUNNER_NAME || ""; const runnerName = process.env.RUNNER_NAME || "";
core.info(`RUNNER_NAME: ${runnerName}`); core.info(`RUNNER_NAME: ${runnerName}`);
if (!isGithubHosted()) { if (!runnerName.startsWith("GitHub Actions")) {
const thirdPartyProvider = detectThirdPartyRunnerProvider();
if (thirdPartyProvider) {
const providerLabel = thirdPartyProvider.charAt(0).toUpperCase() + thirdPartyProvider.slice(1);
if (process.platform !== "linux") {
core.info(`Detected ${providerLabel} runner on ${process.platform}. Bravo agent is Linux-only, skipping install.`);
return;
}
core.info(`Detected ${providerLabel} runner environment. Installing agent-bravo.`);
confg.correlation_id = runnerName || confg.correlation_id;
await callMonitorEndpoint(api_url, confg);
await installAgentForBravo(context.repo.owner, confg);
return;
}
fs.appendFileSync(process.env.GITHUB_STATE, `selfHosted=true${EOL}`, { fs.appendFileSync(process.env.GITHUB_STATE, `selfHosted=true${EOL}`, {
encoding: "utf8", encoding: "utf8",
}); });
if (!fs.existsSync("/home/agent/agent")) {
core.info(common.SELF_HOSTED_RUNNER_MESSAGE); core.info(common.SELF_HOSTED_NO_AGENT_MESSAGE);
return;
const inContainer = isDocker();
const alreadyInstalled = isAgentInstalled(process.platform);
if (shouldDeployAgentOnSelfHosted(confg.deploy_on_self_hosted_vm, inContainer, alreadyInstalled)) {
if (process.platform !== "linux") {
core.info("deploy-on-self-hosted-vm is only supported on Linux. Skipping agent deployment.");
} else {
core.info("deploy-on-self-hosted-vm is enabled. Installing agent on self-hosted runner.");
await installAgentForSelfHosted(context.repo.owner, confg);
}
} else {
if (confg.deploy_on_self_hosted_vm && inContainer) {
core.info("Skipping agent deployment: running inside a container.");
}
if (confg.deploy_on_self_hosted_vm && alreadyInstalled) {
core.info("Agent already installed on self-hosted runner, skipping installation.");
}
} }
if (confg.egress_policy === "block" && !confg.deploy_on_self_hosted_vm) {
sendAllowedEndpoints(confg.allowed_endpoints);
await sleep(5000);
}
return;
}
if (isGithubHosted() && process.env.STEP_SECURITY_HARDEN_RUNNER === "true") {
fs.appendFileSync(process.env.GITHUB_STATE, `customVMImage=true${EOL}`, {
encoding: "utf8",
});
core.info("This job is running on a custom VM image with Harden Runner installed.");
if (confg.egress_policy === "block") { if (confg.egress_policy === "block") {
sendAllowedEndpoints(confg.allowed_endpoints); try {
await sleep(5000); if (process.env.USER) {
cp.execSync(`sudo chown -R ${process.env.USER} /home/agent`);
}
const confgStr = JSON.stringify(confg);
fs.writeFileSync("/home/agent/block_event.json", confgStr);
await sleep(5000);
} catch (error) {
core.info(`[!] Unable to write block_event.json: ${error}`);
}
} }
return; return;
} }
if (isGithubHosted() && isAgentInstalled(process.platform)) {
console.log("Agent already installed, skipping installation");
return;
}
let _http = new httpm.HttpClient(); let _http = new httpm.HttpClient();
let statusCode: number | undefined; let statusCode;
_http.requestOptions = { socketTimeout: 3 * 1000 }; _http.requestOptions = { socketTimeout: 3 * 1000 };
let addSummary = "false";
try { try {
const monitorRequestData = { const resp: httpm.HttpClientResponse = await _http.get(
correlation_id: correlation_id, `${api_url}/github/${process.env["GITHUB_REPOSITORY"]}/actions/runs/${process.env["GITHUB_RUN_ID"]}/monitor`
job: process.env["GITHUB_JOB"],
};
const resp = await _http.postJson<MonitorResponse>(
`${api_url}/github/${process.env["GITHUB_REPOSITORY"]}/actions/runs/${process.env["GITHUB_RUN_ID"]}/monitor`,
monitorRequestData
); );
statusCode = resp.message.statusCode; // adding error code to check whether agent is getting installed or not.
const responseData = resp.result;
statusCode = resp.statusCode; // adding error code to check whether agent is getting installed or not.
fs.appendFileSync( fs.appendFileSync(
process.env.GITHUB_STATE, process.env.GITHUB_STATE,
`monitorStatusCode=${statusCode}${EOL}`, `monitorStatusCode=${statusCode}${EOL}`,
@ -387,29 +174,9 @@ interface MonitorResponse {
encoding: "utf8", encoding: "utf8",
} }
); );
if (statusCode === 200 && responseData) {
console.log(`Runner IP Address: ${responseData.runner_ip_address}`);
confg.one_time_key = responseData.one_time_key;
addSummary = responseData.monitoring_started ? "true" : "false";
}
} catch (e) { } catch (e) {
console.log(`error in connecting to ${api_url}: ${e}`); console.log(`error in connecting to ${api_url}: ${e}`);
} }
fs.appendFileSync(
process.env.GITHUB_STATE,
`addSummary=${addSummary}${EOL}`,
{
encoding: "utf8",
}
);
fs.appendFileSync(
process.env.GITHUB_STATE,
`correlation_id=${correlation_id}${EOL}`,
{
encoding: "utf8",
}
);
console.log(`Step Security Job Correlation ID: ${correlation_id}`); console.log(`Step Security Job Correlation ID: ${correlation_id}`);
if (String(statusCode) === common.STATUS_HARDEN_RUNNER_UNAVAILABLE) { if (String(statusCode) === common.STATUS_HARDEN_RUNNER_UNAVAILABLE) {
@ -417,188 +184,71 @@ interface MonitorResponse {
return; return;
} }
const { api_key, use_policy_store, ...agentConfig } = confg; const confgStr = JSON.stringify(confg);
const configStr = JSON.stringify(agentConfig); cp.execSync("sudo mkdir -p /home/agent");
cp.execSync("sudo chown -R $USER /home/agent");
// platform specific // Note: to avoid github rate limiting
let statusFile = ""; let token = core.getInput("token");
let logFile = ""; let auth = `token ${token}`;
let agentInstalled = false;
switch (process.platform) { const downloadPath: string = await tc.downloadTool(
case "linux": "https://github.com/step-security/agent/releases/download/v0.13.5/agent_0.13.5_linux_amd64.tar.gz",
statusFile = "/home/agent/agent.status"; undefined,
logFile = "/home/agent/agent.log"; auth
);
cp.execSync("sudo mkdir -p /home/agent"); verifyChecksum(downloadPath); // NOTE: verifying agent's checksum, before extracting
chownForFolder(process.env.USER, "/home/agent"); const extractPath = await tc.extractTar(downloadPath);
let isTLS = await isTLSEnabled(context.repo.owner); let cmd = "cp",
agentInstalled = await installAgent(isTLS, configStr); args = [path.join(extractPath, "agent"), "/home/agent/agent"];
cp.execFileSync(cmd, args);
cp.execSync("chmod +x /home/agent/agent");
break; fs.writeFileSync("/home/agent/agent.json", confgStr);
case "win32":
core.info("Installing Windows Agent...");
agentInstalled = await installWindowsAgent(configStr);
const agentDir = process.env.STATE_agentDir || "C:\\agent"; cmd = "sudo";
statusFile = path.join(agentDir, "agent.status"); args = [
logFile = path.join(agentDir, "agent.log"); "cp",
path.join(__dirname, "agent.service"),
"/etc/systemd/system/agent.service",
];
cp.execFileSync(cmd, args);
cp.execSync("sudo systemctl daemon-reload");
cp.execSync("sudo service agent start", { timeout: 15000 });
break; // Check that the file exists locally
case "darwin": var statusFile = "/home/agent/agent.status";
const installed = await installMacosAgent(configStr); var logFile = "/home/agent/agent.log";
if (!installed) { var counter = 0;
core.warning("😭 macos agent installation failed"); while (true) {
} if (!fs.existsSync(statusFile)) {
return; // early return counter++;
default: if (counter > 30) {
throw new Error( console.log("timed out");
`Setup failed because of unsupported platform: ${process.platform}` if (fs.existsSync(logFile)) {
); var content = fs.readFileSync(logFile, "utf-8");
} console.log(content);
if (agentInstalled) {
var counter = 0;
while (true) {
if (!fs.existsSync(statusFile)) {
counter++;
if (counter > 30) {
console.log("timed out");
if (fs.existsSync(logFile)) {
var content = fs.readFileSync(logFile, "utf-8");
console.log(content);
}
break;
} }
await sleep(300);
} // The file *does* exist
else {
// Read the file
var content = fs.readFileSync(statusFile, "utf-8");
console.log(content);
break; break;
} }
await sleep(300);
} // The file *does* exist
else {
// Read the file
var content = fs.readFileSync(statusFile, "utf-8");
console.log(content);
break;
} }
} }
} catch (error) { } catch (error) {
core.setFailed(error.message); core.setFailed(error.message);
} }
// see https://github.com/ruby/setup-ruby/issues/543
process.exit(0);
})(); })();
export function sleep(ms: number) { export function sleep(ms) {
return new Promise((resolve) => { return new Promise((resolve) => {
setTimeout(resolve, ms); setTimeout(resolve, ms);
}); });
} }
async function callMonitorEndpoint(api_url: string, confg: Configuration) {
const _http = new httpm.HttpClient();
_http.requestOptions = { socketTimeout: 3 * 1000 };
let statusCode: number | undefined;
let addSummary = "false";
try {
const monitorRequestData = {
correlation_id: confg.correlation_id,
job: process.env["GITHUB_JOB"],
};
const resp = await _http.postJson<MonitorResponse>(
`${api_url}/github/${process.env["GITHUB_REPOSITORY"]}/actions/runs/${process.env["GITHUB_RUN_ID"]}/monitor`,
monitorRequestData
);
statusCode = resp.statusCode;
if (resp.statusCode === 200 && resp.result) {
console.log(`Runner IP Address: ${resp.result.runner_ip_address}`);
confg.one_time_key = resp.result.one_time_key;
addSummary = resp.result.monitoring_started ? "true" : "false";
}
} catch (e) {
console.log(`error in connecting to ${api_url}: ${e}`);
}
fs.appendFileSync(process.env.GITHUB_STATE, `monitorStatusCode=${statusCode}${EOL}`, { encoding: "utf8" });
fs.appendFileSync(process.env.GITHUB_STATE, `addSummary=${addSummary}${EOL}`, { encoding: "utf8" });
fs.appendFileSync(process.env.GITHUB_STATE, `correlation_id=${confg.correlation_id}${EOL}`, { encoding: "utf8" });
}
export async function installAgentForSelfHosted(owner: string, confg: Configuration) {
try {
console.log("Installing Harden Runner agent for self-hosted runner");
let isTLS = await isTLSEnabled(owner);
if (!isTLS) {
console.log("TLS is not enabled for this organization. Agent installation skipped for self-hosted runner.");
return;
}
const selfHostedConfig = {
customer: owner,
working_directory: confg.working_directory,
api_url: confg.api_url,
api_key: uuidv4(),
allowed_endpoints: confg.allowed_endpoints,
egress_policy: confg.egress_policy,
disable_telemetry: confg.disable_telemetry,
disable_sudo: confg.disable_sudo,
disable_sudo_and_containers: confg.disable_sudo_and_containers,
disable_file_monitoring: confg.disable_file_monitoring,
is_github_hosted: false,
};
const selfHostedConfigStr = JSON.stringify(selfHostedConfig);
cp.execSync("sudo mkdir -p /home/agent");
chownForFolder(process.env.USER, "/home/agent");
const agentInstalled = await installAgent(isTLS, selfHostedConfigStr);
if (agentInstalled) {
const statusFile = "/home/agent/agent.status";
const logFile = "/home/agent/agent.log";
let counter = 0;
while (true) {
if (!fs.existsSync(statusFile)) {
counter++;
if (counter > 30) {
console.log("timed out");
if (fs.existsSync(logFile)) {
const content = fs.readFileSync(logFile, "utf-8");
console.log(content);
}
break;
}
await sleep(300);
} else {
const content = fs.readFileSync(statusFile, "utf-8");
console.log(content);
break;
}
}
}
} catch (error) {
console.log(`Failed to install agent for self-hosted runner: ${error.message}`);
}
}
export async function installAgentForBravo(owner: string, confg: Configuration) {
try {
console.log("Installing Harden Runner bravo agent for third-party runner");
let isTLS = await isTLSEnabled(owner);
if (!isTLS) {
console.log("TLS is not enabled for this organization. Bravo agent installation skipped.");
return;
}
const bravoConfigStr = JSON.stringify(buildBravoConfig(confg));
cp.execSync("sudo mkdir -p /home/agent");
chownForFolder(process.env.USER, "/home/agent");
await installAgentBravo(bravoConfigStr);
} catch (error) {
console.log(`Failed to install bravo agent: ${error.message}`);
}
}

View file

@ -1,29 +0,0 @@
import nock from "nock";
import { STEPSECURITY_API_URL } from "./configs";
import { isTLSEnabled } from "./tls-inspect";
test("tls-inspect enabled", async () => {
let owner = "h0x0er";
let expected = true;
const resp = nock(`${STEPSECURITY_API_URL}`)
.get(`/github/${owner}/actions/tls-inspection-status`)
.reply(200, "");
let got = await isTLSEnabled(owner);
expect(got).toEqual(expected);
});
test("tls-inspect not enabled", async () => {
let owner = "step-security";
let expected = false;
const resp = nock(`${STEPSECURITY_API_URL}`)
.get(`/github/${owner}/actions/tls-inspection-status`)
.reply(401, "");
let got = await isTLSEnabled(owner);
expect(got).toEqual(expected);
});

View file

@ -1,29 +0,0 @@
import { HttpClient } from "@actions/http-client";
import { STEPSECURITY_API_URL } from "./configs";
import * as core from "@actions/core";
export async function isTLSEnabled(owner: string): Promise<boolean> {
let tlsStatusEndpoint = `${STEPSECURITY_API_URL}/github/${owner}/actions/tls-inspection-status`;
let httpClient = new HttpClient();
httpClient.requestOptions = { socketTimeout: 3 * 1000 };
core.info(`[!] Checking TLS_STATUS: ${owner}`);
let isEnabled = false;
try {
let resp = await httpClient.get(tlsStatusEndpoint);
if (resp.message.statusCode === 200) {
isEnabled = true;
core.info(`[!] TLS_ENABLED: ${owner}`);
} else {
core.info(`[!] TLS_NOT_ENABLED: ${owner}`);
}
} catch (e) {
core.info(`[!] Unable to check TLS_STATUS`);
}
return isEnabled;
}
export function isGithubHosted() {
const runnerEnvironment = process.env.RUNNER_ENVIRONMENT || "";
return runnerEnvironment === "github-hosted";
}

View file

@ -1,158 +0,0 @@
import { shouldDeployAgentOnSelfHosted, isAgentInstalled, isPlatformSupported, getAnnotationLogs, detectThirdPartyRunnerProvider } from "./utils";
import * as fs from "fs";
jest.mock("fs", () => ({
...jest.requireActual("fs"),
existsSync: jest.fn(),
}));
const mockedExistsSync = fs.existsSync as jest.MockedFunction<typeof fs.existsSync>;
describe("shouldDeployAgentOnSelfHosted", () => {
test("returns true when deploy flag is true, not container, agent not installed", () => {
expect(shouldDeployAgentOnSelfHosted(true, false, false)).toBe(true);
});
test("returns false when deploy flag is false", () => {
expect(shouldDeployAgentOnSelfHosted(false, false, false)).toBe(false);
});
test("returns false when running in a container", () => {
expect(shouldDeployAgentOnSelfHosted(true, true, false)).toBe(false);
});
test("returns false when agent is already installed", () => {
expect(shouldDeployAgentOnSelfHosted(true, false, true)).toBe(false);
});
test("returns false when in container and agent installed", () => {
expect(shouldDeployAgentOnSelfHosted(true, true, true)).toBe(false);
});
test("returns false when all conditions are negative", () => {
expect(shouldDeployAgentOnSelfHosted(false, true, true)).toBe(false);
});
});
describe("isAgentInstalled", () => {
afterEach(() => {
mockedExistsSync.mockReset();
});
test("returns false for linux when status file does not exist", () => {
mockedExistsSync.mockReturnValue(false);
expect(isAgentInstalled("linux")).toBe(false);
expect(mockedExistsSync).toHaveBeenCalledWith("/home/agent/agent.status");
});
test("returns true for linux when status file exists", () => {
mockedExistsSync.mockReturnValue(true);
expect(isAgentInstalled("linux")).toBe(true);
});
test("returns false for win32 when status file does not exist", () => {
mockedExistsSync.mockReturnValue(false);
expect(isAgentInstalled("win32")).toBe(false);
expect(mockedExistsSync).toHaveBeenCalledWith("C:\\agent\\agent.status");
});
test("returns false for darwin when status file does not exist", () => {
mockedExistsSync.mockReturnValue(false);
expect(isAgentInstalled("darwin")).toBe(false);
expect(mockedExistsSync).toHaveBeenCalledWith("/opt/step-security/agent.status");
});
test("returns false for unsupported platform", () => {
expect(isAgentInstalled("freebsd" as NodeJS.Platform)).toBe(false);
});
});
describe("isPlatformSupported", () => {
test("returns true for linux", () => {
expect(isPlatformSupported("linux")).toBe(true);
});
test("returns true for win32", () => {
expect(isPlatformSupported("win32")).toBe(true);
});
test("returns true for darwin", () => {
expect(isPlatformSupported("darwin")).toBe(true);
});
test("returns false for unsupported platform", () => {
expect(isPlatformSupported("freebsd" as NodeJS.Platform)).toBe(false);
});
});
describe("getAnnotationLogs", () => {
test("throws for unsupported platform", () => {
expect(() => getAnnotationLogs("freebsd" as NodeJS.Platform)).toThrow("platform not supported");
});
});
describe("detectThirdPartyRunnerProvider", () => {
const originalEnv = process.env;
beforeEach(() => {
process.env = { ...originalEnv };
delete process.env.DEPOT_RUNNER;
delete process.env.NAMESPACE_GITHUB_RUNTIME;
delete process.env.RUNNER_NAME;
});
afterAll(() => {
process.env = originalEnv;
});
test("returns depot when DEPOT_RUNNER=1", () => {
process.env.DEPOT_RUNNER = "1";
expect(detectThirdPartyRunnerProvider()).toBe("depot");
});
test("returns null when DEPOT_RUNNER=0", () => {
process.env.DEPOT_RUNNER = "0";
expect(detectThirdPartyRunnerProvider()).toBeNull();
});
test("returns namespace when NAMESPACE_GITHUB_RUNTIME is set", () => {
process.env.NAMESPACE_GITHUB_RUNTIME = "something";
expect(detectThirdPartyRunnerProvider()).toBe("namespace");
});
test("returns warp for RUNNER_NAME prefix warp-", () => {
process.env.RUNNER_NAME = "warp-4x-x64-abc";
expect(detectThirdPartyRunnerProvider()).toBe("warp");
});
test("returns blacksmith for RUNNER_NAME prefix blacksmith-", () => {
process.env.RUNNER_NAME = "blacksmith-01kpj-4vcpu";
expect(detectThirdPartyRunnerProvider()).toBe("blacksmith");
});
test("returns null when no env vars match", () => {
expect(detectThirdPartyRunnerProvider()).toBeNull();
});
test("returns null for a non-matching RUNNER_NAME", () => {
process.env.RUNNER_NAME = "GitHub Actions 1";
expect(detectThirdPartyRunnerProvider()).toBeNull();
});
test("depot takes precedence over namespace", () => {
process.env.DEPOT_RUNNER = "1";
process.env.NAMESPACE_GITHUB_RUNTIME = "something";
expect(detectThirdPartyRunnerProvider()).toBe("depot");
});
test("namespace takes precedence over warp runner name prefix", () => {
process.env.NAMESPACE_GITHUB_RUNTIME = "something";
process.env.RUNNER_NAME = "warp-x";
expect(detectThirdPartyRunnerProvider()).toBe("namespace");
});
test("warp takes precedence over blacksmith when both prefixes seen (warp wins on name check order)", () => {
process.env.RUNNER_NAME = "warp-x";
expect(detectThirdPartyRunnerProvider()).toBe("warp");
});
});

View file

@ -1,65 +0,0 @@
import * as cp from "child_process";
import * as fs from "fs";
export function isPlatformSupported(platform: NodeJS.Platform) {
switch (platform) {
case "linux":
case "win32":
case "darwin":
return true;
default:
return false;
}
}
export function chownForFolder(newOwner: string, target: string) {
let cmd = "sudo";
let args = ["chown", "-R", newOwner, target];
cp.execFileSync(cmd, args);
}
export function isAgentInstalled(platform: NodeJS.Platform) {
switch (platform) {
case "linux":
return fs.existsSync("/home/agent/agent.status");
case "win32":
return fs.existsSync("C:\\agent\\agent.status");
case "darwin":
return fs.existsSync("/opt/step-security/agent.status");
default:
return false;
}
}
export function shouldDeployAgentOnSelfHosted(
deployOnSelfHostedVm: boolean,
isContainer: boolean,
agentAlreadyInstalled: boolean
): boolean {
return deployOnSelfHostedVm && !isContainer && !agentAlreadyInstalled;
}
export type ThirdPartyRunnerProvider = "depot" | "namespace" | "warp" | "blacksmith";
export function detectThirdPartyRunnerProvider(): ThirdPartyRunnerProvider | null {
if (process.env["DEPOT_RUNNER"] === "1") return "depot";
if (process.env["NAMESPACE_GITHUB_RUNTIME"]) return "namespace";
const runnerName = process.env["RUNNER_NAME"] ?? "";
if (runnerName.startsWith("warp-")) return "warp";
if (runnerName.startsWith("blacksmith-")) return "blacksmith";
return null;
}
export function getAnnotationLogs(platform: NodeJS.Platform) {
switch (platform) {
case "linux":
return fs.readFileSync("/home/agent/annotation.log", "utf8");
case "win32":
return fs.readFileSync("C:\\agent\\annotation.log", "utf8");
case "darwin":
return fs.readFileSync("/opt/step-security/annotation.log", "utf8");
default:
throw new Error("platform not supported");
}
}