Description

GitPython is a python library used to interact with Git repositories. When resolving a program, Python/Windows look for the current working directory, and after that the PATH environment. GitPython defaults to use the `git` command, if a user runs GitPython from a repo has a `git.exe` or `git` executable, that program will be run instead of the one in the user's `PATH`. This is more of a problem on how Python interacts with Windows systems, Linux and any other OS aren't affected by this. But probably people using GitPython usually run it from the CWD of a repo. An attacker can trick a user to download a repository with a malicious `git` executable, if the user runs/imports GitPython from that directory, it allows the attacker to run any arbitrary commands. There is no fix currently available for windows users, however there are a few mitigations. 1: Default to an absolute path for the git program on Windows, like `C:\\Program Files\\Git\\cmd\\git.EXE` (default git path installation). 2: Require users to set the `GIT_PYTHON_GIT_EXECUTABLE` environment variable on Windows systems. 3: Make this problem prominent in the documentation and advise users to never run GitPython from an untrusted repo, or set the `GIT_PYTHON_GIT_EXECUTABLE` env var to an absolute path. 4: Resolve the executable manually by only looking into the `PATH` environment variable.

Metrics

 

CVSS Version 4.0 CVSS Version 3.x CVSS Version 2.0

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.

CVSS 4.0 Severity and Vector Strings:

NIST: NVD

N/A

NVD assessment not yet provided.

CVSS 3.x Severity and Vector Strings:

CNA:  GitHub, Inc.

Base Score:  7.8 HIGH

Vector:  CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS 2.0 Severity and Vector Strings:

NIST: NVD

Base Score: N/A

NVD assessment not yet provided.

https://docs.python.org/3/library/subprocess.html#popen-constructor

https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-wfm5-v35h-vwf4

NIST AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

OR
     *cpe:2.3:a:gitpython_project:gitpython:*:*:*:*:*:python:*:* versions up to (including) 3.1.32

https://docs.python.org/3/library/subprocess.html#popen-constructor No Types Assigned

https://docs.python.org/3/library/subprocess.html#popen-constructor Product

https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-wfm5-v35h-vwf4 No Types Assigned

https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-wfm5-v35h-vwf4 Exploit, Mitigation, Vendor Advisory