CVE Vulnerability

CVE-2021-21237

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.

4.6 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 6.4

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

Scope

7.8 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://github.com/git-lfs/git-lfs/security/advisories/GHSA-cx3w-xqmc-84g5 Third Party Advisory
https://github.com/git-lfs/git-lfs/commit/fc664697ed2c2081ee9633010de0a7f9debea72a Patch Third Party Advisory
https://github.com/git-lfs/git-lfs/releases/tag/v2.13.2 Third Party Advisory
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-27955 Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:git_large_file_storage_project:git_large_file_storage:*:*:*:*:*:*:*:*
Information

Published : 2021-01-15 06:15

Updated : 2021-01-29 10:18

NVD link : CVE-2021-21237

Mitre link : CVE-2021-21237

Products Affected
No products.
CWE
CWE-426

Untrusted Search Path