Security vulnerabilities and automated fixes for workflow security issues
2 posts found
A high-severity shell injection vulnerability was discovered and fixed in a GitHub Actions deployment workflow, where direct use of `${{github.*}}` context variables in `run:` steps could allow attackers to execute arbitrary code in the CI/CD runner. This type of attack can lead to secret theft, source code exfiltration, and complete pipeline compromise. The fix involves routing untrusted context data through intermediate environment variables before using them in shell scripts.
A high-severity shell injection vulnerability was discovered in a GitHub Actions workflow that could allow attackers to execute arbitrary code and steal secrets. The vulnerability stemmed from directly interpolating untrusted GitHub context data in shell commands. This post explains the attack vector, demonstrates the fix, and provides best practices for securing your CI/CD pipelines.