Path Traversal in Gitpython-Developers Gitpython
CVE-2023-41040
GitPython is a python library used to interact with Git repositories. In order to resolve some git references, GitPython reads files from the `.git` directory, in some places the name of the file being read is provided by the user, GitPython doesn't check if this file is located outside the `.git` directory. This allows an attacker to make GitPython read any file from the system. This vulnerability is present in https://github.com/gitpython-developers/GitPython/blob/1c8310d7cae144f74a671cbe17e51f63a830adbf/git/refs/symbolic.py#L174-L175. That code joins the base directory with a user given string without checking if the final path is located outside the base directory. This vulnerability cannot be used to read the contents of files but could in theory be used to trigger a denial of service for the program. This issue has been addressed in version 3.1.37.
Vulnerability class: Path Traversal (Directory Traversal)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.0 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.011 (64.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 64th percentile — 64.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.010 · newest: 0.011 · change: +0.001
Affected products
- Gitpython-Developers Gitpython — versions < 3.1.37
- Gitpython Project
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/gitpython-developers/GitPython/security/advisories/GHSA-cwvm-v4w8-q5… (Exploit, Vendor Advisory)
- github.com/gitpython-developers/GitPython/pull/1672
- github.com/gitpython-developers/GitPython/commit/74e55ee4544867e1bd976b7df5a458…
- github.com/gitpython-developers/GitPython/commit/e98f57b81f792f0f5e18d33ee658ae…
- github.com/gitpython-developers/GitPython/blob/1c8310d7cae144f74a671cbe17e51f63… (Product)
- github.com/gitpython-developers/GitPython/releases/tag/3.1.37
- github.com/pypa/advisory-database/tree/main/vulns/gitpython/PYSEC-2023-165.yaml
- lists.debian.org/debian-lts-announce/2023/09/msg00036.html
- af854a3a-2127-422b-91ae-364da2661108
Frequently asked questions
- What is CVE-2023-41040?
- CVE-2023-41040 is a medium-severity vulnerability in Gitpython-Developers Gitpython, classified under Path Traversal. CVSS score: 4.0/10. Published 2023-08-30.
- How severe is CVE-2023-41040?
- Medium severity. CVSS v3 base score is 4.0 out of 10.
- Is CVE-2023-41040 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.