QID 375469

QID 375469: Git Credential Manager Core Untrusted Cloning of Repository Vulnerability

Git Credential Manager Core (GCM Core) is a secure Git credential helper built on .NET Core.

In Git Credential Manager Core before version 2.0.289, when recursively cloning a Git repository on Windows with submodules, Git will first clone the top-level repository and then recursively clone all submodules by starting new Git processes from the top-level working directory. If a malicious git.exe executable is present in the top-level repository then this binary will be started by Git Credential Manager Core when attempting to read configuration, and not git.exe as found on the %PATH%.

Affected Versions:
Prior to GCM Core version 2.0.289

QID Detection Logic (authenticated):

Successful exploitation could compromise the Confidentiality, Integrity and Availability

CVSS V3 rated as High - 7.3 severity.

CVSS V2 rated as Medium - 3.6 severity.

Solution

Customers are advised to upgrade to GCM Core version 2.0.289 or later versions to remediate these vulnerabilities.

Vendor References

GHSA-2gq7-ww4j-3m76 - github.com/microsoft/Git-Credential-Manager-Core/security/advisories/GHSA-2gq7-ww4j-3m76

CVEs related to QID 375469

CVE-2020-26233 |

Software Advisories

Advisory ID	Software	Component	Link
GHSA-2gq7-ww4j-3m76			github.com/microsoft/Git-Credential-Manager-Core/security/advisories/GHSA-2gq7-ww4j-3m76

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