Password Exposure Vulnerability in Jenkins Credentials Binding Plugin

CVE-2018-1000057

Summary

The Credentials Binding Plugin for Jenkins versions 1.14 and earlier is vulnerable to a flaw that compromises password masking in build logs. When passwords are provided to build processes, the plugin masks these passwords to prevent unauthorized access. However, the way Jenkins transforms password values—such as replacing environment variable references—can lead to the exposure of values that, although not identical, might closely resemble the original passwords. These transformed values are not masked, potentially allowing unauthorized users to discern the original passwords. This creates a significant security risk for Jenkins users.

References