CVE-2020-13931 Explained : Impact and Mitigation

Apache TomEE versions 8.0.0-M1 to 8.0.3, 7.1.0 to 7.1.3, 7.0.0-M1 to 7.0.8, and 1.0.0 to 1.7.5 are affected by a vulnerability related to misconfigured ActiveMQ broker settings.

Understanding CVE-2020-13931

This CVE involves the exposure of an unauthenticated JMX port when using the embedded ActiveMQ broker in Apache TomEE.

What is CVE-2020-13931?

The misconfiguration of the ActiveMQ broker in Apache TomEE leads to the opening of an unauthenticated JMX port on TCP port 1099, allowing unauthorized access.

The Impact of CVE-2020-13931

The vulnerability exposes systems to unauthorized access through the unauthenticated JMX port, potentially leading to security breaches and data compromise.

Technical Details of CVE-2020-13931

Apache TomEE's misconfigured ActiveMQ broker results in the exposure of an unauthenticated JMX port, posing a security risk.

Vulnerability Description

The misconfiguration of the ActiveMQ broker in Apache TomEE allows the opening of an unauthenticated JMX port on TCP port 1099, lacking proper authentication mechanisms.

Affected Systems and Versions

Apache TomEE 8.0.0-M1 to 8.0.3
Apache TomEE 7.1.0 to 7.1.3
Apache TomEE 7.0.0-M1 to 7.0.8
Apache TomEE 1.0.0 to 1.7.5

Exploitation Mechanism

The vulnerability occurs when the ActiveMQ broker is misconfigured, leading to the exposure of the unauthenticated JMX port on TCP port 1099.

Mitigation and Prevention

Taking immediate steps and implementing long-term security practices are crucial to mitigating the risks associated with CVE-2020-13931.

Immediate Steps to Take

Disable the JMX port if not required for operations.
Implement network segmentation to restrict access to vulnerable services.
Regularly monitor network traffic for any unauthorized access attempts.

Long-Term Security Practices

Conduct regular security audits and vulnerability assessments.
Keep software and systems up to date with the latest patches and security updates.
Educate personnel on best practices for securing network services.

Patching and Updates

Apply patches provided by Apache TomEE to address the misconfiguration of the ActiveMQ broker and secure the JMX port.