CVE-2021-21237
HIGHGit LFS <2.13.2 - Windows Code Execution via Current-Directory Git Binary
Title source: manualDescription
Git LFS is a command line extension for managing large files with Git. On Windows, if Git LFS operates on a malicious repository with a git.bat or git.exe file in the current directory, that program would be executed, permitting the attacker to execute arbitrary code. This does not affect Unix systems. This is the result of an incomplete fix for CVE-2020-27955. This issue occurs because on Windows, Go includes (and prefers) the current directory when the name of a command run does not contain a directory separator. Other than avoiding untrusted repositories or using a different operating system, there is no workaround. This is fixed in v2.13.2.
References (4)
Core 4
Core References
Third Party Advisory x_refsource_confirm
https://github.com/git-lfs/git-lfs/security/advisories/GHSA-cx3w-xqmc-84g5
Third Party Advisory x_refsource_misc
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-27955
Third Party Advisory x_refsource_misc
https://github.com/git-lfs/git-lfs/releases/tag/v2.13.2
Patch, Third Party Advisory x_refsource_misc
https://github.com/git-lfs/git-lfs/commit/fc664697ed2c2081ee9633010de0a7f9debea72a
Scores
CVSS v3
7.2
EPSS
0.0044
EPSS Percentile
34.6%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N
Details
CWE
CWE-426
Status
published
Products (2)
git-lfs/git-lfs
0 - 2.13.2Go
git_large_file_storage_project/git_large_file_storage
< 2.13.2
Published
Jan 15, 2021
Tracked Since
Feb 18, 2026