Open redirect in GitLab Enterprise Edition and Gitlab Community Edition - CVE-2019-18451
Published: November 28, 2019
Vulnerability identifier: #VU23080
CSH Severity: Medium
CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2019-18451
CWE-ID: CWE-601
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to redirect victims to arbitrary URL.
The vulnerability exists due to improper sanitization of user-supplied data in the InternalRedirect filtering feature. A remote attacker can create a link that leads to a trusted website, however, when clicked, redirects the victim to arbitrary domain.
Successful exploitation of this vulnerability may allow a remote attacker to perform a phishing attack and steal potentially sensitive information.
Affected software
GitLab Enterprise Edition
Gitlab Community Edition
Gitlab Community Edition
How to mitigate CVE-2019-18451
Install updates from vendor's website.
GitLab Enterprise Edition - update to 12.4.1
Gitlab Community Edition - update to 12.4.1
Gitlab Community Edition - update to 12.4.1