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Security Advisories: MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLTU3cTctcnhxcS03dmdw

On Windows, `git-sizer` might run a `git` executable within the repository being analyzed

Impact

On Windows, if git-sizer is run against a non-bare repository, and that repository has an executable called git.exe, git.bat, etc., then that executable might be run by git-sizer rather than the system git executable. An attacker could try to use social engineering to get a victim to run git-sizer against a hostile repository and thereby get the victim to run arbitrary code.

On Linux or other Unix-derived platforms, a similar problem could occur if the user's PATH has the current directory before the path to the standard git executable, but this is would be a very unusual configuration that has been known for decades to lead to all kinds of security problems.

Patches

Users should update to git-sizer v1.4.0

Workarounds

If you are on Windows, then either

• Don't run git-sizer against a repository that might contain hostile code, or, if you must…
• Run git-sizer against a bare clone of the hostile repository, or, if that is not possible…
• Make sure that the hostile repository doesn't have an executable in its top-level directory before running git-sizer.

If you are on Linux or other Unix-based system, then (for myriad reasons!) don't add the current directory to your PATH.

References

• Command PATH security in Go

For more information

If you have any questions or comments about this advisory:

• Open an issue in the git-sizer project.
• Email us at GitHub support.

Permalink: https://github.com/advisories/GHSA-57q7-rxqq-7vgp
JSON: https://advisories.ecosyste.ms/api/v1/advisories/MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLTU3cTctcnhxcS03dmdw
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Moderate
Classification: General
Published: about 2 years ago
Updated: over 1 year ago

Identifiers: GHSA-57q7-rxqq-7vgp
References:

• https://github.com/github/git-sizer/security/advisories/GHSA-57q7-rxqq-7vgp
• https://github.com/github/git-sizer/commit/38400d6ddd79325e956b00ff584cfcc8dd96d536
• https://github.com/advisories/GHSA-57q7-rxqq-7vgp

Repository: https://github.com/github/git-sizer
Blast Radius: 0.0

Affected Packages