Description
Jenkins Copy data to workspace Plugin 1.0 and earlier does not limit which directories can be copied from the Jenkins controller to job workspaces, allowing attackers with Job/Configure permission to read arbitrary files on the Jenkins controller.
Remediation
References
http://www.openwall.com/lists/oss-security/2020/09/16/3
https://www.jenkins.io/security/advisory/2020-09-16/#SECURITY-1966