CVE-2018-1000413 : Security Advisory and Response

Jenkins Config File Provider Plugin versions 3.1 and older contain a cross-site scripting (XSS) vulnerability that allows users to inject arbitrary HTML content into specific pages within the Jenkins system.

Understanding CVE-2018-1000413

This CVE involves a security vulnerability in Jenkins Config File Provider Plugin versions 3.1 and earlier, enabling cross-site scripting attacks.

What is CVE-2018-1000413?

This CVE identifies a cross-site scripting vulnerability in Jenkins Config File Provider Plugin versions 3.1 and older, specifically in the files configfiles.jelly and providerlist.jelly. This flaw permits users with configuration file modification privileges to insert HTML content into certain Jenkins pages.

The Impact of CVE-2018-1000413

The vulnerability could be exploited by malicious users to execute arbitrary scripts in the context of a user's browser, potentially leading to unauthorized actions or data theft within the Jenkins environment.

Technical Details of CVE-2018-1000413

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

Vulnerability Description

The vulnerability in Jenkins Config File Provider Plugin versions 3.1 and earlier allows for the injection of arbitrary HTML content into specific pages, posing a risk of cross-site scripting attacks.

Affected Systems and Versions

Jenkins Config File Provider Plugin versions 3.1 and older are affected.

Exploitation Mechanism

The vulnerability can be exploited by users with configuration file modification permissions to introduce malicious HTML content into certain pages within the Jenkins system, potentially leading to XSS attacks.

Mitigation and Prevention

Protecting systems from CVE-2018-1000413 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update Jenkins Config File Provider Plugin to a non-vulnerable version.
Monitor and restrict user access to configuration files to prevent unauthorized modifications.

Long-Term Security Practices

Regularly review and update Jenkins plugins to ensure the latest security patches are applied.
Educate users on secure coding practices and the risks of XSS vulnerabilities.

Patching and Updates

Apply patches provided by Jenkins to address the XSS vulnerability in the Config File Provider Plugin.