Vulnerability identifier: #VU80212

Vulnerability risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-4378

CWE-ID: CWE-200

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Gitlab Community Edition
Universal components / Libraries / Software for developers
GitLab Enterprise Edition
Universal components / Libraries / Software for developers

Vendor: GitLab, Inc

Description

The vulnerability allows a remote user to gain access to potentially sensitive information.

The vulnerability exists due to excessive data output by the application in the Sentry error tracking settings page. A remote administrator can change the configured URL and leak the sentry token.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Gitlab Community Edition: 11.8.0 - 16.3.0

GitLab Enterprise Edition: 11.8.0 - 16.3.0

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External links
http://about.gitlab.com/releases/2023/08/31/security-release-gitlab-16-3-1-released/

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Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

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