pysec-2023-161
Vulnerability from pysec
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.
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "gitpython",
"purl": "pkg:pypi/gitpython"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "3.1.33"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"0.1.7",
"0.2.0-beta1",
"0.3.0-beta1",
"0.3.0-beta2",
"0.3.1-beta2",
"0.3.2",
"0.3.2.1",
"0.3.2.RC1",
"0.3.3",
"0.3.4",
"0.3.5",
"0.3.6",
"0.3.7",
"1.0.0",
"1.0.1",
"1.0.2",
"2.0.0",
"2.0.1",
"2.0.2",
"2.0.3",
"2.0.4",
"2.0.5",
"2.0.6",
"2.0.7",
"2.0.8",
"2.0.9",
"2.0.9.dev0",
"2.0.9.dev1",
"2.1.0",
"2.1.1",
"2.1.10",
"2.1.11",
"2.1.12",
"2.1.13",
"2.1.14",
"2.1.15",
"2.1.2",
"2.1.3",
"2.1.4",
"2.1.5",
"2.1.6",
"2.1.7",
"2.1.8",
"2.1.9",
"3.0.0",
"3.0.1",
"3.0.2",
"3.0.3",
"3.0.4",
"3.0.5",
"3.0.6",
"3.0.7",
"3.0.8",
"3.0.9",
"3.1.0",
"3.1.1",
"3.1.10",
"3.1.11",
"3.1.12",
"3.1.13",
"3.1.14",
"3.1.15",
"3.1.16",
"3.1.17",
"3.1.18",
"3.1.19",
"3.1.2",
"3.1.20",
"3.1.22",
"3.1.23",
"3.1.24",
"3.1.25",
"3.1.26",
"3.1.27",
"3.1.28",
"3.1.29",
"3.1.3",
"3.1.30",
"3.1.31",
"3.1.32",
"3.1.4",
"3.1.5",
"3.1.6",
"3.1.7",
"3.1.8",
"3.1.9"
]
}
],
"aliases": [
"CVE-2023-40590",
"GHSA-wfm5-v35h-vwf4"
],
"details": " 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\u0027s `PATH`. This is more of a problem on how Python interacts with Windows systems, Linux and any other OS aren\u0027t 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.",
"id": "PYSEC-2023-161",
"modified": "2023-09-05T22:26:14.587281+00:00",
"published": "2023-08-28T18:15:00+00:00",
"references": [
{
"type": "WEB",
"url": "https://docs.python.org/3/library/subprocess.html#popen-constructor"
},
{
"type": "EVIDENCE",
"url": "https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-wfm5-v35h-vwf4"
},
{
"type": "ADVISORY",
"url": "https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-wfm5-v35h-vwf4"
}
],
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}