GHSA-q9cm-88jx-3vfw
Improper handling of case sensitivity in Jenkins OpenId Connect Authentication Plugin
Packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| Maven | org.jenkins-ci.plugins:oic-auth | < 4.453.v4d7765c854f4 | 4.453.v4d7765c854f4 |
Details
As written in the advisory (Markdown source, shown as plain text).
The Jenkins OpenId Connect Authentication Plugin 4.452.v2849b_d3945fa_ and earlier treats usernames as case-insensitive.
On a Jenkins instance configured with a case-sensitive OpenID Connect provider, this allows attackers to log in as any user by providing a username that differs only in letter case, potentially gaining administrator access to Jenkins.
OpenId Connect Authentication Plugin 4.453.v4d7765c854f4 introduces an advanced configuration option to manage username case sensitivity, with default to case-sensitive.
References
External links from the advisory. They lead to third-party sites.