CVE-2019-16551 Explained : Impact and Mitigation

A cross-site request forgery vulnerability in Jenkins Gerrit Trigger Plugin version 2.30.1 and earlier allows attackers to establish connections with HTTP URLs or SSH servers using specified credentials.

Understanding CVE-2019-16551

This CVE involves a security vulnerability in the Jenkins Gerrit Trigger Plugin that can be exploited by attackers.

What is CVE-2019-16551?

The CVE-2019-16551 vulnerability allows attackers to perform cross-site request forgery attacks on Jenkins Gerrit Trigger Plugin version 2.30.1 and earlier.

The Impact of CVE-2019-16551

Attackers can exploit the vulnerability to connect to HTTP URLs or SSH servers specified by them using specific credentials.

Technical Details of CVE-2019-16551

This section provides more technical insights into the vulnerability.

Vulnerability Description

The vulnerability in Jenkins Gerrit Trigger Plugin version 2.30.1 and earlier enables cross-site request forgery attacks, allowing unauthorized connections to attacker-specified servers.

Affected Systems and Versions

Product: Jenkins Gerrit Trigger Plugin
Vendor: Jenkins project
Versions Affected: <= 2.30.1 (unspecified version type: custom)

Exploitation Mechanism

Attackers can exploit the vulnerability to establish connections with HTTP URLs or SSH servers using credentials they specify.

Mitigation and Prevention

Protecting systems from CVE-2019-16551 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update Jenkins Gerrit Trigger Plugin to a version beyond 2.30.1 to mitigate the vulnerability.
Monitor and restrict access to Jenkins instances to prevent unauthorized exploitation.

Long-Term Security Practices

Regularly update and patch Jenkins and its plugins to address security vulnerabilities.
Implement secure coding practices to prevent cross-site request forgery attacks.

Patching and Updates

Apply security patches provided by Jenkins project promptly to address known vulnerabilities.