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| Package Name | Ecosystem | Vulnerable Versions | First Patched Version |
|---|---|---|---|
| org.jenkins-ci.plugins:jenkins-multijob-plugin | maven | < 669.v9d96a | 669.v9d96a |
Miggo AIRoot Cause AnalysisThe vulnerability description indicates a Cross-Site Request Forgery (CSRF) flaw in the Jenkins Multijob Plugin, allowing attackers to resume failed builds. The root cause is an HTTP endpoint that did not enforce the use of POST requests for a state-changing action. By analyzing the commits between the last vulnerable version (662.vd2e0001f6b_b_d) and the first patched version (669.v9d96a_d9c71b_0), the fixing commit e4c5d5c3974f440098b581fb2525e71a2bfe5e34 was identified. This commit, titled "Fix SECURITY-3781", modifies the MultiJobResumeBuild.java file. Specifically, it adds the @RequirePOST annotation to the doIndex method within the com.tikal.jenkins.plugins.multijob.MultiJobResumeBuild class. This annotation, provided by the Stapler framework used in Jenkins, restricts the method to be accessible only via HTTP POST requests. Before this change, the method could be invoked via a simple GET request, which is the classic vector for CSRF attacks. The vulnerable function is therefore com.tikal.jenkins.plugins.multijob.MultiJobResumeBuild.doIndex, as it was the entry point for the CSRF-vulnerable action.
