BIT-git-lfs-2021-21237

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    BIT-git-lfs-2021-21237

    Published: 6 Mar 2024Last Modified: 8 Sept 2026

    Summary: Git LFS can execute a Git binary from the current directory on Windows

    Details: 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: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-27955, https://github.com/git-lfs/git-lfs/commit/fc664697ed2c2081ee9633010de0a7f9debea72a, https://github.com/git-lfs/git-lfs/releases/tag/v2.13.2, https://github.com/git-lfs/git-lfs/security/advisories/GHSA-cx3w-xqmc-84g5, https://nvd.nist.gov/vuln/detail/CVE-2021-21237

    Affected packages

    Package

    Name: git-lfs

    Purl: pkg:bitnami/git-lfs

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 0
    Fixed -2.13.2

    Affected versions

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    BIT-git-lfs-2021-21237 | CVE-DB