CVE-2021-43578: Protection Mechanism Failure

November 12, 2021 (updated November 22, 2023)

Jenkins Squash TM Publisher (Squash4Jenkins) Plugin implements an agent-to-controller message that does not implement any validation of its input, allowing attackers able to control agent processes to replace arbitrary files on the Jenkins controller file system with an attacker-controlled JSON string.

References

www.openwall.com/lists/oss-security/2021/11/12/1
nvd.nist.gov/vuln/detail/CVE-2021-43578
www.jenkins.io/security/advisory/2021-11-12/

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