Headline
GHSA-53ph-2r2x-vqw8: Cross-site WebSocket hijacking vulnerability in the Jenkins CLI
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.
- GitHub Advisory Database
- GitHub Reviewed
- CVE-2024-23898
Cross-site WebSocket hijacking vulnerability in the Jenkins CLI
High severity GitHub Reviewed Published Jan 24, 2024 to the GitHub Advisory Database • Updated Jan 26, 2024
Package
maven org.jenkins-ci.main:jenkins-core (Maven)
Affected versions
>= 2.222.1, < 2.427
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.
References
- https://nvd.nist.gov/vuln/detail/CVE-2024-23898
- https://www.jenkins.io/security/advisory/2024-01-24/#SECURITY-3315
- http://www.openwall.com/lists/oss-security/2024/01/24/6
Published to the GitHub Advisory Database
Jan 24, 2024
Last updated
Jan 26, 2024
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