CVE-2019-1003098 : Security Advisory and Response

The Jenkins OpenId Plugin has a vulnerability that allows for cross-site request forgery, potentially enabling attackers to connect to a server specified by the attacker.

Understanding CVE-2019-1003098

This CVE identifies a specific vulnerability in the OpenId Plugin within Jenkins that can be exploited for malicious purposes.

What is CVE-2019-1003098?

The OpenId Plugin in Jenkins contains a cross-site request forgery vulnerability in the form validation method called doValidate in the OpenIdSsoSecurityRealm.DescriptorImpl class. This flaw can be abused by attackers to establish a connection to a server of their choice.

The Impact of CVE-2019-1003098

Exploiting this vulnerability could lead to unauthorized access to sensitive information, potential data breaches, and unauthorized server connections.

Technical Details of CVE-2019-1003098

This section delves into the technical aspects of the CVE.

Vulnerability Description

The vulnerability lies in the form validation method doValidate in the OpenIdSsoSecurityRealm.DescriptorImpl class within the Jenkins OpenId Plugin.

Affected Systems and Versions

Product: Jenkins OpenId Plugin
Vendor: Jenkins project
Affected Versions: All versions as of 2019-04-03

Exploitation Mechanism

Attackers can exploit the vulnerability by manipulating the form validation method to establish connections to servers specified by the attackers.

Mitigation and Prevention

Protecting systems from CVE-2019-1003098 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update the Jenkins OpenId Plugin to the latest version that includes a patch for this vulnerability.
Monitor server connections for any suspicious activity.

Long-Term Security Practices

Regularly update all software and plugins to mitigate potential vulnerabilities.
Implement network security measures to detect and prevent unauthorized connections.

Patching and Updates

Jenkins project provides security advisories and patches for known vulnerabilities. Stay informed and apply patches promptly.