CVE-2023-39156 Explained : Impact and Mitigation

A cross-site request forgery (CSRF) vulnerability in Jenkins Bazaar Plugin 1.22 and earlier allows attackers to delete previously created Bazaar SCM tags.

Understanding CVE-2023-39156

This CVE-2023-39156 pertains to a CSRF vulnerability in the Jenkins Bazaar Plugin, specifically affecting versions up to 1.22. Attackers can exploit this vulnerability to delete previously created Bazaar SCM tags.

What is CVE-2023-39156?

CVE-2023-39156 is a security vulnerability found in the Jenkins Bazaar Plugin that enables attackers to perform unauthorized deletion of Bazaar SCM tags due to insufficient CSRF protection.

The Impact of CVE-2023-39156

The impact of this vulnerability is significant as it allows malicious actors to manipulate Bazaar SCM tags, potentially leading to data loss, unauthorized access, and other security breaches.

Technical Details of CVE-2023-39156

This section provides more in-depth technical information about the vulnerability.

Vulnerability Description

The vulnerability lies in the lack of proper CSRF protection in Jenkins Bazaar Plugin versions up to 1.22, enabling attackers to forge requests to delete Bazaar SCM tags without proper authorization.

Affected Systems and Versions

Affected Systems: Jenkins Bazaar Plugin
Affected Versions: Up to 1.22

Exploitation Mechanism

Attackers can exploit this vulnerability by crafting a malicious request to the plugin, tricking the server into deleting Bazaar SCM tags without proper validation.

Mitigation and Prevention

To mitigate the risks associated with CVE-2023-39156, users and organizations are recommended to take the following steps:

Immediate Steps to Take

Update Jenkins Bazaar Plugin to version 1.23 or higher, which contains a patch addressing the CSRF vulnerability.
Monitor for any suspicious activities related to Bazaar SCM tags and review recent deletions for unauthorized actions.

Long-Term Security Practices

Implement proper CSRF protection mechanisms in plugins and applications to prevent similar attacks in the future.
Conduct regular security audits and vulnerability assessments to identify and address any potential weaknesses in the system.

Patching and Updates

Regularly check for security advisories and updates from Jenkins Project to stay informed about patches and fixes for known vulnerabilities.