Executive Summary

Informations
Name CVE-2021-21237 First vendor Publication 2021-01-15
Vendor Cve Last vendor Modification 2021-01-29

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Overall CVSS Score 7.8
Base Score 7.8 Environmental Score 7.8
impact SubScore 5.9 Temporal Score 7.8
Exploitabality Sub Score 1.8
 
Attack Vector Local Attack Complexity Low
Privileges Required Low User Interaction None
Scope Unchanged Confidentiality Impact High
Integrity Impact High Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:L/AC:L/Au:N/C:P/I:P/A:P)
Cvss Base Score 4.6 Attack Range Local
Cvss Impact Score 6.4 Attack Complexity Low
Cvss Expoit Score 3.9 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

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.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21237

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-426 Untrusted Search Path

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 2

Sources (Detail)

Source Url
CONFIRM https://github.com/git-lfs/git-lfs/security/advisories/GHSA-cx3w-xqmc-84g5
MISC https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-27955
https://github.com/git-lfs/git-lfs/commit/fc664697ed2c2081ee9633010de0a7f9deb...
https://github.com/git-lfs/git-lfs/releases/tag/v2.13.2

Alert History

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Date Informations
2021-05-04 14:07:02
  • Multiple Updates
2021-04-22 03:11:38
  • Multiple Updates
2021-01-30 05:23:04
  • Multiple Updates
2021-01-16 01:33:04
  • Multiple Updates
2021-01-16 01:32:52
  • Multiple Updates
2021-01-16 00:22:56
  • Multiple Updates
2021-01-15 21:23:29
  • First insertion