Horizon Alert
Summary of the vulnerability and why it matters
This vulnerability involves a deployment workflow in the Duck Site technology that could allow unauthorized code to be deployed to production. If an attacker can manipulate the build process, their code could bypass standard review and directly become the live production site. The primary concern is confirming if this specific internal process is relevant to your environment and if it is exposed.
- Code can deploy to production without review.
- Understand if internal deployment processes are vulnerable.
- Verify relevance and exposure to internal systems.
Attack Path
How an attacker could exploit the issue
An attacker could compromise the production site by submitting a pull request that meets the conditions for triggering the deploy workflow. This workflow, which runs with elevated permissions, would then deploy the attacker's code directly to production without merging it into the main branch. This process bypasses standard code review and deployment gates, allowing malicious code to become the live site.
- An attacker submits a special pull request.
- The pull request triggers a deploy workflow.
- Attacker code is deployed to production.
Live Threat
Current exploitation, exposure, and threat context
This vulnerability could allow an attacker-controlled pull request to deploy malicious code directly to the production site without being merged into the main codebase, bypassing typical review processes. This is possible when the build workflow on a pull request satisfies conditions that trigger the deploy workflow, which has elevated permissions.
- Deployed production site code.
- Pull request can trigger deploy workflow.
- Production site compromised with malicious code.
Priority actions
Operational Fix
Recommended remediation, mitigation, and detection steps
This critical vulnerability in Duck Site's deploy workflow impacts organizations using the affected version. The risk lies in an attacker potentially deploying unmerged code to production through a crafted pull request. Owners of the application and the CI/CD platform should collaborate to address this. The immediate first step is to identify all instances of the affected technology, confirm their exposure and business criticality, and then plan remediation.
- Application and CI/CD platform owners.
- Verify production deployment reachability.
- Coordinate vendor patch or workaround.
