CVE-2021-21653 : Security Advisory and Response

Jenkins Xray - Test Management for Jira Plugin 2.4.0 and earlier versions are affected by a vulnerability that allows users with Overall/Read permission to enumerate credentials IDs stored in Jenkins through an unprotected HTTP endpoint.

Understanding CVE-2021-21653

This CVE pertains to a missing authorization flaw in the Jenkins Xray - Test Management for Jira Plugin.

What is CVE-2021-21653?

The vulnerability in Jenkins Xray - Test Management for Jira Plugin versions <= 2.4.0 enables unauthorized users with Overall/Read permission to access sensitive credentials IDs stored in Jenkins.

The Impact of CVE-2021-21653

Attackers with malicious intent could exploit this vulnerability to gather valuable information from the Jenkins instance, potentially leading to unauthorized access or other security breaches.

Technical Details of CVE-2021-21653

This section dives into the specifics of the vulnerability.

Vulnerability Description

Jenkins Xray - Test Management for Jira Plugin versions <= 2.4.0 lack proper permission checks in an HTTP endpoint, enabling users with Overall/Read permission to enumerate credential IDs.

Affected Systems and Versions

The specific affected product is the Jenkins Xray - Test Management for Jira Plugin, with versions less than or equal to 2.4.0.

Exploitation Mechanism

Unauthorized users with Overall/Read permission can exploit the unprotected HTTP endpoint to gather sensitive credentials IDs stored in Jenkins.

Mitigation and Prevention

Discover the necessary steps to address and prevent the CVE-2021-21653 vulnerability.

Immediate Steps to Take

Update the Jenkins Xray - Test Management for Jira Plugin to a secure version beyond 2.4.0.
Implement strict access controls and permissions within the Jenkins instance.

Long-Term Security Practices

Regularly monitor and audit access controls within the Jenkins environment.
Educate users on secure credential management practices.

Patching and Updates

Stay informed about security advisories and apply timely patches and updates to Jenkins and its associated plugins.