Vulnerability identifier: #VU81056

Vulnerability risk: Low

CVSSv3.1: 3.7 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-41040

CWE-ID: CWE-22

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
GitPython
Other software / Other software solutions

Vendor: gitpython-developers

Description

The vulnerability allows a remote attacker to perform directory traversal attacks.

The vulnerability exists due to input validation error when reading from the ".git" directory. A remote attacker can prepare a specially crafted ".git" file with directory traversal characters in file names and force the application to read these files from the local system. This can result in checking for existence of a specific files on the system or perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

GitPython: 3.0.0 - 3.1.36

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External links
http://github.com/gitpython-developers/GitPython/security/advisories/GHSA-cwvm-v4w8-q58c
http://github.com/gitpython-developers/GitPython/blob/1c8310d7cae144f74a671cbe17e51f63a830adbf/git/refs/symbolic.py#L174-L175

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.