Vulnerability identifier: #VU85790

Vulnerability risk: High

CVSSv3.1: 7.1 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-23898

CWE-ID: CWE-1385

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Jenkins
Server applications / Application servers
Jenkins LTS
Server applications / Application servers

Vendor: Jenkins

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.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Jenkins: 2.204.2 - 2.441

Jenkins LTS: 2.222.1 - 2.426.2

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External links
http://www.jenkins.io/security/advisory/2024-01-24/#SECURITY-3315
http://www.openwall.com/lists/oss-security/2024/01/24/6

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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