CVE-2020-2284 : Exploit Details and Defense Strategies

Jenkins Liquibase Runner Plugin 1.4.5 and earlier versions are vulnerable to XML external entity (XXE) attacks.

Understanding CVE-2020-2284

Jenkins Liquibase Runner Plugin lacks proper configuration in its XML parser, making it susceptible to XXE attacks.

What is CVE-2020-2284?

This CVE identifies a vulnerability in Jenkins Liquibase Runner Plugin versions 1.4.5 and below, allowing attackers to exploit XXE vulnerabilities.

The Impact of CVE-2020-2284

The vulnerability could lead to unauthorized access to sensitive data, server-side request forgery (SSRF), or denial of service (DoS) attacks.

Technical Details of CVE-2020-2284

Jenkins Liquibase Runner Plugin vulnerability details.

Vulnerability Description

The plugin fails to secure its XML parser, enabling malicious entities to execute XXE attacks.

Affected Systems and Versions

Product: Jenkins Liquibase Runner Plugin
Vendor: Jenkins project
Versions Affected: <= 1.4.5 (unspecified version type: custom)

Exploitation Mechanism

Attackers can exploit the vulnerability by injecting malicious XML payloads to trigger XXE attacks.

Mitigation and Prevention

Protect your systems from CVE-2020-2284.

Immediate Steps to Take

Update Jenkins Liquibase Runner Plugin to a secure version.
Implement proper input validation to prevent malicious XML input.
Monitor and restrict network access to Jenkins instances.

Long-Term Security Practices

Regularly audit and update Jenkins plugins for security patches.
Educate developers on secure coding practices to prevent XXE vulnerabilities.

Patching and Updates

Apply security patches provided by Jenkins project promptly.
Stay informed about security advisories and updates from Jenkins.