CVE-2020-2105 : What You Need to Know

Jenkins 2.218 and earlier, LTS 2.204.1 and earlier versions are vulnerable to clickjacking attacks.

Understanding CVE-2020-2105

REST API endpoints in Jenkins were susceptible to clickjacking attacks.

What is CVE-2020-2105?

This CVE identifies a vulnerability in Jenkins versions 2.218 and earlier, LTS 2.204.1 and earlier, allowing clickjacking attacks on REST API endpoints.

The Impact of CVE-2020-2105

Clickjacking attacks could potentially lead to unauthorized actions being performed in Jenkins by tricking users into interacting with maliciously crafted UI elements.

Technical Details of CVE-2020-2105

Jenkins versions affected by a clickjacking vulnerability.

Vulnerability Description

The vulnerability in Jenkins versions 2.218 and earlier, LTS 2.204.1 and earlier, exposes REST API endpoints to clickjacking attacks.

Affected Systems and Versions

Product: Jenkins
Vendor: Jenkins project
Vulnerable Versions: <= 2.218, <= LTS 2.204.1

Exploitation Mechanism

Attackers could exploit this vulnerability by tricking authenticated users into interacting with a malicious UI element, leading to unauthorized actions within Jenkins.

Mitigation and Prevention

Steps to address and prevent the CVE-2020-2105 vulnerability.

Immediate Steps to Take

Update Jenkins to a non-vulnerable version above 2.218 or LTS 2.204.1.
Implement security controls to prevent clickjacking attacks.

Long-Term Security Practices

Regularly monitor and update Jenkins to the latest secure versions.
Educate users on recognizing and avoiding clickjacking attempts.

Patching and Updates

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