Missing Origin Validation in WebSockets in Jenkins and Jenkins LTS - CVE-2024-23898
Published: January 25, 2024 / Updated: March 31, 2025
Vulnerability identifier: #VU85790
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:P/U:Amber
CVE-ID: CVE-2024-23898
CWE-ID: CWE-1385
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vendor: Jenkins
Affected software:
Jenkins
Jenkins LTS
Jenkins
Jenkins LTS
Detailed vulnerability description
The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.
The vulnerability exists due to a cross-site WebSocket hijacking (CSWSH) issue when the affected application does not perform origin validation of requests made through the CLI WebSocket endpoint. A remote attacker can execute CLI commands on the Jenkins controller.
How to mitigate CVE-2024-23898
Install updates from vendor's website.