CVE-2023-49291

Summary

tj-actions/branch-names is a Github action to retrieve branch or tag names with support for all events. The tj-actions/branch-names GitHub Actions improperly references the github.event.pull_request.head.ref and github.head_ref context variables within a GitHub Actions run step. The head ref variable is the branch name and can be used to execute arbitrary code using a specially crafted branch name. As a result an attacker can use this vulnerability to steal secrets from or abuse GITHUB_TOKEN permissions. This vulnerability has been addressed in version 7.0.7. Users are advised to upgrade. There are no known workarounds for this vulnerability.

Affected Software

Weaknesses

• CWE-20: CWE-20: Improper Input Validation

ADP Enrichment

CVE Program Container

Additional References

• https://github.com/tj-actions/branch-names/security/advisories/GHSA-8v8w-v8xg-79rf
• https://github.com/tj-actions/branch-names/commit/4923d1ca41f928c24f1c1b3af9daaadfb71e6337
• https://github.com/tj-actions/branch-names/commit/6c999acf206f5561e19f46301bb310e9e70d8815
• https://github.com/tj-actions/branch-names/commit/726fe9ba5e9da4fcc716223b7994ffd0358af060
• https://securitylab.github.com/research/github-actions-untrusted-input

References

• https://github.com/tj-actions/branch-names/security/advisories/GHSA-8v8w-v8xg-79rf
• https://github.com/tj-actions/branch-names/commit/4923d1ca41f928c24f1c1b3af9daaadfb71e6337
• https://github.com/tj-actions/branch-names/commit/6c999acf206f5561e19f46301bb310e9e70d8815
• https://github.com/tj-actions/branch-names/commit/726fe9ba5e9da4fcc716223b7994ffd0358af060
• https://securitylab.github.com/research/github-actions-untrusted-input

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