Main Vulnerability Database Vulnerabilities #VU41143

Input validation error in Gitlab Community Edition and GitLab Enterprise Edition - CVE-2020-13293

Published: August 10, 2020

Vulnerability identifier: #VU41143

CSH Severity: High

CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2020-13293

CWE-ID: CWE-20

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to a confusion when using hexadecimal branch names. A remote attacker can use a branch with a hexadecimal name and override an existing hash.

Affected software

Gitlab Community Edition
GitLab Enterprise Edition

How to mitigate CVE-2020-13293

Install updates from vendor's website.

Gitlab Community Edition - addressed in versions 13.0.12, 13.1.6, 13.2.3
GitLab Enterprise Edition - addressed in versions 13.0.12, 13.1.6, 13.2.3

External References

https://about.gitlab.com/releases/2020/08/05/gitlab-13-2-3-released/

Related Security Bulletins