CVE-2018-1000195 : What You Need to Know

This CVE involves a vulnerability in Jenkins versions 2.120 and older, and LTS versions 2.107.2 and older, specifically in the file ZipExtractionInstaller.java, leading to a server-side request forgery.

Understanding CVE-2018-1000195

This vulnerability allows users with Overall/Read permission to trigger Jenkins to send an HTTP GET request to any specified URL, enabling them to verify the success of the response.

What is CVE-2018-1000195?

Vulnerability in Jenkins versions 2.120 and older, and LTS versions 2.107.2 and older
Located in the file ZipExtractionInstaller.java
Enables users with Overall/Read permission to make Jenkins send an HTTP GET request to any URL

The Impact of CVE-2018-1000195

Users can determine the success of the response (HTTP status code 200) from the specified URL

Technical Details of CVE-2018-1000195

This section provides more in-depth technical insights into the vulnerability.

Vulnerability Description

A server-side request forgery vulnerability exists in Jenkins, allowing users to trigger HTTP GET requests to arbitrary URLs.

Affected Systems and Versions

Jenkins versions 2.120 and older
LTS versions 2.107.2 and older

Exploitation Mechanism

Users with Overall/Read permission can exploit the vulnerability by making Jenkins send HTTP GET requests to chosen URLs

Mitigation and Prevention

Protecting systems from this vulnerability requires immediate actions and long-term security practices.

Immediate Steps to Take

Upgrade Jenkins to a non-vulnerable version
Restrict Overall/Read permissions to trusted users

Long-Term Security Practices

Regularly review and update Jenkins security configurations
Educate users on secure practices and permissions management

Patching and Updates

Apply security patches and updates provided by Jenkins to address this vulnerability