dag-factory's CI/CD Workflow Allows for Repository Takeover and Secret Exfiltration

Vulnerability Description

dag-factory is a library for Apache Airflow® to construct DAGs declaratively via configuration files. In versions 0.23.0a8 and below, a high-severity vulnerability has been identified in the cicd.yml workflow within the astronomer/dag-factory GitHub repository. The workflow, specifically when triggered by pull_request_target, is susceptible to exploitation, allowing an attacker to execute arbitrary code within the GitHub Actions runner environment. This misconfiguration enables an attacker to establish a reverse shell, exfiltrate sensitive secrets, including the highly-privileged GITHUB_TOKEN, and ultimately gain full control over the repository. This is fixed in version 0.23.0a9.

References

• https://github.com/astronomer/dag-factory/security/advisories/GHSA-g5hx-xv45-9whg
• https://github.com/astronomer/dag-factory/pull/460
• https://github.com/astronomer/dag-factory/pull/466
• https://github.com/astronomer/dag-factory/commit/751c0e58369e784f6a924347e381a705ea8133fe