Information disclosure in Gitlab Enterprise Edition

1) Improper access control

EUVDB-ID: #VU21188

Risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-16170

CWE-ID: CWE-284 - Improper Access Control

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain unauthorized access to sensitive information.

The vulnerability exists due to improper access restrictions in the project creation using custom group templates. A remote authenticated attacker can send a specially crafted request, clone a project to which he has partial visibility and see the restricted information on the target system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

GitLab Enterprise Edition: 11.0.0 - 12.2.4

External links

http://about.gitlab.com/2019/09/10/critical-security-release-gitlab-12-dot-2-dot-5-released/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.