.. / CVE-2023-23946

Exploit for Git < 2.39.2, 2.38.4, 2.37.6, 2.36.5, 2.35.7, 2.34.7, 2.33.7, 2.32.6, 2.31.7, 2.30.8 - Remote Code Execution (CVE-2023-23946)

Description:

Git, a revision control system, is vulnerable to path traversal prior to versions 2.39.2, 2.38.4, 2.37.6, 2.36.5, 2.35.7, 2.34.7, 2.33.7, 2.32.6, 2.31.7, and 2.30.8. By feeding a crafted input to git apply, a path outside the working tree can be overwritten as the user who is running git apply. A fix has been prepared and will appear in v2.39.2, v2.38.4, v2.37.6, v2.36.5, v2.35.7, v2.34.7, v2.33.7, v2.32.6, v2.31.7, and v2.30.8. As a workaround, use git apply --stat to inspect a patch before applying; avoid applying one that creates a symbolic link and then creates a file beyond the symbolic link.

Proof of Concept

PoC exploit

Try the exploit in a lab environment:

Lab Machine Link
Hack The Box Snoopy Go to Practice

References:

https://nvd.nist.gov/vuln/detail/CVE-2023-23946
https://github.com/git/git/security/advisories/GHSA-r87m-v37r-cwfh
https://github.com/git/git/commit/c867e4fa180bec4750e9b54eb10f459030dbebfd
https://security.gentoo.org/glsa/202312-15