Description
Jenkins 2.318 and earlier, LTS 2.303.2 and earlier does not check agent-to-controller access to create symbolic links when unarchiving a symbolic link in FilePath#untar.
Remediation
References
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ownCloud Improper Control of Generation of Code ('Code Injection') Vulnerability (CVE-2014-2044)
IBM RTC Exposure of Sensitive Information to an Unauthorized Actor Vulnerability (CVE-2017-1240)