Vulnerability · Published Aug 30, 2023 · Assigned by GitHub_M
CVE-2023-41040GitPython blind local file inclusion
Medium 4.0
In plain English
A medium-severity path traversal in GitPython from gitpython-developers. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 1.1% (higher than 66% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.20 | py3-gitpython | 3.1.37-r0 | ALPINE-CVE-2023-41040 |
| Alpine:v3.21 | py3-gitpython | 3.1.37-r0 | ALPINE-CVE-2023-41040 |
| Alpine:v3.22 | py3-gitpython | 3.1.37-r0 | ALPINE-CVE-2023-41040 |
| Alpine:v3.23 | py3-gitpython | 3.1.37-r0 | ALPINE-CVE-2023-41040 |
| Alpine:v3.24 | py3-gitpython | 3.1.37-r0 | ALPINE-CVE-2023-41040 |
| Debian:12 | python-git | 3.1.30-1+deb12u2 | DEBIAN-CVE-2023-41040 |
| Debian:13 | python-git | 3.1.36-1 | DEBIAN-CVE-2023-41040 |
| Debian:14 | python-git | 3.1.36-1 | DEBIAN-CVE-2023-41040 |
| PyPI | gitpython | 3.1.35 | PYSEC-2023-165 |
| PyPI | gitpython | 3.1.37 | GHSA-cwvm-v4w8-q58c |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| gitpython-developers | GitPython | < 3.1.37 |
Weakness: CWE-22 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
References
- https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-cwvm-v4w8-q58c x_refsource_CONFIRM
- https://github.com/gitpython-developers/GitPython/pull/1672 x_refsource_MISC
- https://github.com/gitpython-developers/GitPython/commit/74e55ee4544867e1bd976b7df5a45869ee397b0b x_refsource_MISC
- https://github.com/gitpython-developers/GitPython/commit/e98f57b81f792f0f5e18d33ee658ae395f9aa3c4 x_refsource_MISC
- https://github.com/gitpython-developers/GitPython/blob/1c8310d7cae144f74a671cbe17e51f63a830adbf/git/refs/symbolic.py#L174-L175 x_refsource_MISC
- https://github.com/gitpython-developers/GitPython/releases/tag/3.1.37 x_refsource_MISC
- https://github.com/pypa/advisory-database/tree/main/vulns/gitpython/PYSEC-2023-165.yaml x_refsource_MISC
- https://lists.debian.org/debian-lts-announce/2023/09/msg00036.html x_refsource_MISC
- https://lists.debian.org/debian-lts-announce/2024/10/msg00030.html