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CVE-2021-21696

Published: Nov 4, 2021

Modified: Aug 3, 2024

PUBLISHED

Description

Jenkins 2.318 and earlier, LTS 2.303.2 and earlier does not limit agent read/write access to the libs/ directory inside build directories when using the FilePath APIs, allowing attackers in control of agent processes to replace the code of a trusted library with a modified variant. This results in unsandboxed code execution in the Jenkins controller process.

Vendor	Product	Versions
Jenkins project	Jenkins	affected `unspecified - <= 2.318` affected `unspecified - <= LTS 2.303.2`

References

https://www.jenkins.io/security/advisory/2021-11-04/#SECURITY-2423

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[oss-security] 20211104 Multiple vulnerabilities in Jenkins and Jenkins plugins

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