Main Vulnerability Database Vulnerabilities #VU48108

Path traversal in Gitlab Community Edition and GitLab Enterprise Edition - CVE-2020-13355

Published: November 3, 2020

Vulnerability identifier: #VU48108

CSH Severity: Medium

CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2020-13355

CWE-ID: CWE-22

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to perform directory traversal attacks.

The vulnerability exists due to input validation error when processing directory traversal sequences in LFS Upload. A remote attacker can send a specially crafted HTTP request and overwrite certain specific paths on the server.

Affected software

Gitlab Community Edition
GitLab Enterprise Edition

How to mitigate CVE-2020-13355

Install update from vendor's website.

Gitlab Community Edition - addressed in versions 13.3.9, 13.4.5, 13.5.2
GitLab Enterprise Edition - addressed in versions 13.3.9, 13.4.5, 13.5.2

External References

https://about.gitlab.com/releases/2020/11/02/security-release-gitlab-13-5-2-released/

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