Improper access control in Gitlab Community Edition and GitLab Enterprise Edition - CVE-2020-13359

 

Improper access control in Gitlab Community Edition and GitLab Enterprise Edition - CVE-2020-13359

Published: November 3, 2020


Vulnerability identifier: #VU48111
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2020-13359
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: GitLab, Inc
Affected software:
Gitlab Community Edition
GitLab Enterprise Edition

Detailed vulnerability description

The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to the Terraform API exposes the object storage signed URL on the delete operation. A remote authenticated attacker can overwrite the Terraform state to bypass audit and other business controls.


How to mitigate CVE-2020-13359

Install updates from vendor's website.

Sources