CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:C/I:C/A:C
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
99.4%
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.
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-27955
github.com/git-lfs/git-lfs/commit/fc664697ed2c2081ee9633010de0a7f9debea72a
github.com/git-lfs/git-lfs/releases/tag/v2.13.2
github.com/git-lfs/git-lfs/security/advisories/GHSA-cx3w-xqmc-84g5
launchpad.net/bugs/cve/CVE-2021-21237
nvd.nist.gov/vuln/detail/CVE-2021-21237
security-tracker.debian.org/tracker/CVE-2021-21237
www.cve.org/CVERecord?id=CVE-2021-21237
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:C/I:C/A:C
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
99.4%