CVE-2020-2108 : Security Advisory and Response

Jenkins WebSphere Deployer Plugin 1.6.1 and earlier versions are vulnerable to XXE attacks due to improper XML parser configuration.

Understanding CVE-2020-2108

This CVE affects Jenkins WebSphere Deployer Plugin versions up to 1.6.1, allowing exploitation by users with Job/Configure permissions.

What is CVE-2020-2108?

CVE-2020-2108 is a vulnerability in Jenkins WebSphere Deployer Plugin that enables XXE attacks when the XML parser is not properly configured.

The Impact of CVE-2020-2108

The vulnerability can be exploited by attackers with Job/Configure permissions, potentially leading to unauthorized access and data exposure.

Technical Details of CVE-2020-2108

Jenkins WebSphere Deployer Plugin 1.6.1 and earlier versions are susceptible to XXE attacks due to inadequate XML parser settings.

Vulnerability Description

The issue arises from the plugin's failure to secure the XML parser, allowing malicious entities to exploit XXE vulnerabilities.

Affected Systems and Versions

Product: Jenkins WebSphere Deployer Plugin
Vendor: Jenkins project
Versions Affected: Up to 1.6.1

Exploitation Mechanism

Attackers with Job/Configure permissions can leverage the XXE vulnerability to execute unauthorized actions within the affected systems.

Mitigation and Prevention

To address CVE-2020-2108, follow these steps:

Immediate Steps to Take

Upgrade Jenkins WebSphere Deployer Plugin to a secure version.
Restrict Job/Configure permissions to trusted users.

Long-Term Security Practices

Regularly monitor and update Jenkins plugins for security patches.
Implement XML parser configurations to mitigate XXE vulnerabilities.

Patching and Updates

Apply patches provided by Jenkins project to fix the vulnerability and enhance system security.