CVE-2020-2138 : Security Advisory and Response

Jenkins Cobertura Plugin 1.15 and earlier versions are vulnerable to XML external entity (XXE) attacks.

Understanding CVE-2020-2138

This CVE identifies a security vulnerability in the Jenkins Cobertura Plugin that could allow for XXE attacks.

What is CVE-2020-2138?

Jenkins Cobertura Plugin versions 1.15 and earlier lack proper configuration in their XML parser, making them susceptible to XXE attacks.

The Impact of CVE-2020-2138

The vulnerability could be exploited by attackers to perform XXE attacks, potentially leading to unauthorized access to sensitive information or system compromise.

Technical Details of CVE-2020-2138

Jenkins Cobertura Plugin 1.15 and earlier versions are affected by this vulnerability.

Vulnerability Description

The issue arises from the plugin's failure to secure its XML parser against XXE attacks.

Affected Systems and Versions

Product: Jenkins Cobertura Plugin
Vendor: Jenkins project
Versions Affected: <= 1.15

Exploitation Mechanism

Attackers can exploit this vulnerability by injecting malicious XML content to trigger XXE attacks.

Mitigation and Prevention

It is crucial to take immediate steps to address and prevent exploitation of CVE-2020-2138.

Immediate Steps to Take

Update the Jenkins Cobertura Plugin to a version that includes a fix for the XXE vulnerability.
Implement proper input validation to mitigate XXE attacks.

Long-Term Security Practices

Regularly monitor security advisories and updates for Jenkins plugins.
Conduct security assessments to identify and address vulnerabilities proactively.

Patching and Updates

Apply patches and updates provided by Jenkins project to ensure the plugin is secure against XXE attacks.