Description
Jenkins Git Changelog Plugin 2.17 and earlier stored credentials unencrypted in job config.xml files on the Jenkins master where they could be viewed by users with Extended Read permission, or access to the master file system.
Remediation
References
https://jenkins.io/security/advisory/2019-09-25/#SECURITY-1574
http://www.openwall.com/lists/oss-security/2019/09/25/3