OS Command Injection in Git-it

[dwisiswant0]

Description

Git-it through 4.4.0 allows OS command injection at the Branches Aren't Just For Birds challenge step. During the verification process, it attempts to run the reflog command followed by the current branch name (which is not sanitized for execution).

CVE ID: CVE-2021-44685

Proof-of-Concept

Vulnerable code: https://github.com/jlord/git-it-electron/blob/4f397578eb057b6b4f8d2f3ffcccc57c5213e463/lib/verify/branches_arent_just_for_birds.js#L55

See in high-quality video here.

Impact

This issue may lead to arbitrary command execution.

References

• https://github.com/jlord/git-it-electron/releases
• https://github.com/dwisiswant0/advisory/raw/master/.poc/CVE-2021-44685.mp4

[github-actions]

It seems like it's been 120-day, has this disclosure not received a response from the vendor yet? Please make a decision in the next 2-day.

[dwisiswant0]

No confirmation at all. CVE requested.