CVE-2023-43501 Explained : Impact and Mitigation

A missing permission check in Jenkins Build Failure Analyzer Plugin 2.4.1 and earlier allows attackers to connect to an attacker-specified hostname and port using specified credentials.

Understanding CVE-2023-43501

This CVE refers to a security vulnerability in the Jenkins Build Failure Analyzer Plugin that could be exploited by attackers with certain permissions to connect to a specific host and port with provided credentials.

What is CVE-2023-43501?

CVE-2023-43501 is a vulnerability in Jenkins Build Failure Analyzer Plugin versions 2.4.1 and earlier. It allows attackers with the appropriate permissions to establish connections to predefined addresses using specified login details.

The Impact of CVE-2023-43501

This vulnerability poses a significant risk as it could enable unauthorized access to sensitive systems and data by malicious actors with the necessary access rights within the Jenkins environment.

Technical Details of CVE-2023-43501

The following technical aspects shed light on the specifics of CVE-2023-43501.

Vulnerability Description

The flaw in Jenkins Build Failure Analyzer Plugin versions 2.4.1 and earlier permits individuals with Overall/Read permissions to initiate connections to designated servers using customized login credentials.

Affected Systems and Versions

Affected Systems: Jenkins Build Failure Analyzer Plugin
Vendor: Jenkins Project
Vulnerable Versions: Up to and including 2.4.1

Exploitation Mechanism

Attackers leveraging this vulnerability can employ Overall/Read permissions to connect to user-defined hosts and ports with provided username and password details.

Mitigation and Prevention

Addressing CVE-2023-43501 involves taking immediate steps and implementing long-term security measures to mitigate risks effectively.

Immediate Steps to Take

Administrators should review and update permissions to restrict unauthorized access within the Jenkins environment.
Consider temporarily disabling affected plugins until a patch or workaround is available.

Long-Term Security Practices

Regularly monitor and review user permissions and plugin configurations to prevent similar issues in the future.
Stay informed about security advisories and updates released by Jenkins to address vulnerabilities promptly.

Patching and Updates

Apply security patches provided by Jenkins Project to fix the vulnerability and ensure that plugins are updated to non-vulnerable versions.