{"id":"CVE-2023-40590","state":"PUBLISHED","title":"Untrusted search path on Windows systems leading to arbitrary code execution","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.","publishedAt":"2023-08-28T17:24:09.965Z","updatedAt":"2024-10-02T14:04:39.463Z","severity":{"score":7.8,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","source":"GitHub_M"},"assigner":"GitHub_M","products":["gitpython-developers GitPython"],"affected":[{"vendor":"gitpython-developers","product":"GitPython","versions":[{"version":"<= 3.1.32","status":"affected"}]}],"references":["https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-wfm5-v35h-vwf4","https://docs.python.org/3/library/subprocess.html#popen-constructor"],"weaknesses":["CWE-426"],"ingestedAt":"2026-10-29T20:06:17.512Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2023/40xxx/CVE-2023-40590.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2023-40590","state":"PUBLISHED","datePublished":"2023-08-28T17:24:09.965Z","dateUpdated":"2024-10-02T14:04:39.463Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2023-08-16T18:24:02.392Z"},"containers":{"cna":{"title":"Untrusted search path on Windows systems leading to arbitrary code execution","descriptions":[{"lang":"en","value":" 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":[{"vendor":"gitpython-developers","product":"GitPython","versions":[{"version":"<= 3.1.32","status":"affected"}]}],"references":[{"url":"https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-wfm5-v35h-vwf4","name":"https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-wfm5-v35h-vwf4","tags":["x_refsource_CONFIRM"]},{"url":"https://docs.python.org/3/library/subprocess.html#popen-constructor","name":"https://docs.python.org/3/library/subprocess.html#popen-constructor","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":7.8,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-426","lang":"en","description":"CWE-426: Untrusted Search Path","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2023-08-28T17:24:09.965Z"},"source":{"advisory":"GHSA-wfm5-v35h-vwf4","discovery":"UNKNOWN"}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-wfm5-v35h-vwf4","name":"https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-wfm5-v35h-vwf4","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"https://docs.python.org/3/library/subprocess.html#popen-constructor","name":"https://docs.python.org/3/library/subprocess.html#popen-constructor","tags":["x_refsource_MISC","x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-02T18:38:50.996Z"}},{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2024-10-02T14:04:30.245441Z","id":"CVE-2023-40590","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2024-10-02T14:04:39.463Z"}}]}}}