high
8.8
CWE
346
EPSS
0.091%
Advisory Published
Advisory Published
Updated

CVE-2024-23898

First published: Wed Jan 24 2024(Updated: )

Jenkins has a built-in command line interface (CLI) to access Jenkins from a script or shell environment. Since Jenkins 2.217 and LTS 2.222.1, one of the ways to communicate with the CLI is through a WebSocket endpoint. This endpoint relies on the default Jenkins web request authentication functionality, like HTTP Basic authentication with API tokens, or session cookies. This endpoint is enabled when running on a version of Jetty for which Jenkins supports WebSockets. This is the case when using the provided native installers, packages, or the Docker containers, as well as when running Jenkins with the command java -jar jenkins.war. Jenkins 2.217 through 2.441 (both inclusive), LTS 2.222.1 through 2.426.2 (both inclusive) does not perform origin validation of requests made through the CLI WebSocket endpoint, resulting in a cross-site WebSocket hijacking (CSWSH) vulnerability.

Credit: jenkinsci-cert@googlegroups.com jenkinsci-cert@googlegroups.com

Affected SoftwareAffected VersionHow to fix
maven/org.jenkins-ci.main:jenkins-core>=2.427<=2.440
2.442
maven/org.jenkins-ci.main:jenkins-core>=2.217<=2.426.2
2.426.3
maven/org.jenkins-ci.main:jenkins-core=2.441
redhat/Jenkins<2.442
2.442
redhat/Jenkins LTS<2.426.3
2.426.3
Jenkins LTS>=2.217<=2.441
Jenkins LTS>=2.222.1<=2.426.2
Jenkins LTS=2.442
Jenkins LTS=LTS 2.426.3

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Reference Links

Peer vulnerabilities

(Found alongside the following vulnerabilities)

Frequently Asked Questions

  • What is the severity of CVE-2024-23898?

    CVE-2024-23898 is considered a critical vulnerability affecting Jenkins.

  • How do I fix CVE-2024-23898?

    To fix CVE-2024-23898, update Jenkins to version 2.442 or LTS 2.426.3 or later.

  • Which versions of Jenkins are affected by CVE-2024-23898?

    CVE-2024-23898 affects Jenkins versions 2.217 to 2.441 and LTS versions from 2.222.1 to 2.426.2.

  • What type of vulnerability is CVE-2024-23898?

    CVE-2024-23898 is a remote code execution vulnerability in Jenkins.

  • Is authentication sufficient to mitigate CVE-2024-23898?

    No, the default Jenkins web request authentication does not fully mitigate the risks associated with CVE-2024-23898.

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