#VU57938 Improper access control in Gitlab Community Edition and GitLab Enterprise Edition - CVE-2021-39903
Published: November 4, 2021
Vulnerability identifier: #VU57938
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2021-39903
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Gitlab Community Edition
GitLab Enterprise Edition
Gitlab Community Edition
GitLab Enterprise Edition
Software vendor:
GitLab, Inc
GitLab, Inc
Description
The vulnerability allows a remote user to gain unauthorized access to otherwise restricted functionality.
The vulnerability exists due to improper access restrictions. A remote authenticated attacker can change the visibility level of a group or a project to a restricted option even after the instance administrator sets that visibility option as restricted in settings.
Remediation
Install updates from vendor's website.