CVE-2023-46650 : What You Need to Know

A stored cross-site scripting vulnerability in Jenkins GitHub Plugin version 1.37.3 and earlier allows attackers with Item/Configure permission to exploit the Jenkins build page.

Understanding CVE-2023-46650

This section will cover what CVE-2023-46650 is, its impact, technical details, and mitigation strategies.

What is CVE-2023-46650?

The CVE-2023-46650 vulnerability pertains to Jenkins GitHub Plugin versions 1.37.3 and below, where a lack of GitHub project URL escaping on the build page enables stored cross-site scripting attacks.

The Impact of CVE-2023-46650

The vulnerability allows attackers with specific permissions to execute malicious scripts within the context of Jenkins, potentially leading to unauthorized data access or other malicious activities.

Technical Details of CVE-2023-46650

This section delves into the specifics of the vulnerability, including its description, affected systems, and exploitation mechanism.

Vulnerability Description

Jenkins GitHub Plugin 1.37.3 and earlier fail to properly escape the GitHub project URL, leaving the build page susceptible to stored cross-site scripting attacks, which can be leveraged by attackers with Item/Configure permission.

Affected Systems and Versions

The vulnerable versions of Jenkins GitHub Plugin include 1.37.3 and earlier, opening up the risk of stored XSS attacks to instances running these versions.

Exploitation Mechanism

Exploiting CVE-2023-46650 requires attackers to have Item/Configure permission within Jenkins, enabling them to insert malicious scripts that can be triggered when viewing changes on the build page.

Mitigation and Prevention

To safeguard systems against CVE-2023-46650, immediate actions and long-term security practices are crucial.

Immediate Steps to Take

Administrators should update the Jenkins GitHub Plugin to versions beyond 1.37.3, apply security patches, and restrict Item/Configure permission to trusted users only.

Long-Term Security Practices

Regular security audits, code reviews, and user permission reviews can help maintain a secure Jenkins environment and prevent similar vulnerabilities in the future.

Patching and Updates

Staying informed about security advisories from Jenkins Project, applying timely patches, and monitoring plugin updates can mitigate the risks associated with CVE-2023-46650.