CVE-2019-16553 : Security Advisory and Response

A vulnerability in Jenkins Build Failure Analyzer Plugin 1.24.1 and earlier allows attackers to exploit cross-site request forgery, potentially leading to the execution of computationally intensive regular expressions.

Understanding CVE-2019-16553

This CVE involves a security issue in the Jenkins Build Failure Analyzer Plugin that could be exploited by attackers through cross-site request forgery.

What is CVE-2019-16553?

CVE-2019-16553 is a cross-site request forgery vulnerability in Jenkins Build Failure Analyzer Plugin versions 1.24.1 and earlier. This vulnerability enables attackers to manipulate Jenkins into processing complex regular expressions.

The Impact of CVE-2019-16553

The vulnerability allows malicious actors to perform unauthorized actions through Jenkins, potentially leading to system compromise or data breaches.

Technical Details of CVE-2019-16553

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The vulnerability in Jenkins Build Failure Analyzer Plugin 1.24.1 and earlier allows attackers to trigger computationally intensive regular expressions through cross-site request forgery.

Affected Systems and Versions

Product: Jenkins Build Failure Analyzer Plugin
Vendor: Jenkins project
Versions Affected: <= 1.24.1 (unspecified version type: custom)

Exploitation Mechanism

Attackers can exploit this vulnerability by crafting malicious requests that trick users into unknowingly executing harmful actions within Jenkins.

Mitigation and Prevention

Protecting systems from CVE-2019-16553 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update Jenkins Build Failure Analyzer Plugin to a patched version.
Implement CSRF protection mechanisms in Jenkins.

Long-Term Security Practices

Regularly monitor and audit Jenkins for unusual activities.
Educate users on recognizing and avoiding social engineering attacks.

Patching and Updates

Apply security patches and updates promptly to mitigate the risk of exploitation.