CVE-2020-13946 Explained : Impact and Mitigation

Apache Cassandra versions prior to 2.1.22, 2.2.18, 3.0.22, 3.11.8, and 4.0-beta2 are vulnerable to a man-in-the-middle attack on the JMX interface.

Understanding CVE-2020-13946

Apache Cassandra is susceptible to a security issue that allows a local attacker to manipulate the RMI registry, potentially leading to unauthorized access.

What is CVE-2020-13946?

In Apache Cassandra versions before specified patches, a local attacker can exploit the RMI registry to intercept user credentials for accessing the JMX interface, enabling unauthorized operations.

The Impact of CVE-2020-13946

The vulnerability permits a local attacker to capture user credentials and perform unauthorized actions through the JMX interface, compromising system security.

Technical Details of CVE-2020-13946

Apache Cassandra's vulnerability exposes systems to credential theft and unauthorized access.

Vulnerability Description

The flaw allows a local attacker to manipulate the RMI registry, intercept user credentials, and gain unauthorized access to the JMX interface.

Affected Systems and Versions

Apache Cassandra versions prior to 2.1.22, 2.2.18, 3.0.22, 3.11.8, and 4.0-beta2

Exploitation Mechanism

Local attackers can exploit the RMI registry to capture user credentials and perform unauthorized operations.

Mitigation and Prevention

Taking immediate steps and implementing long-term security practices are crucial to safeguard systems.

Immediate Steps to Take

Apply the recommended patches for Apache Cassandra versions to mitigate the vulnerability.
Monitor and restrict access to the JMX interface to authorized users only.

Long-Term Security Practices

Regularly update Apache Cassandra to the latest secure versions.
Implement network segmentation to limit the attack surface.

Patching and Updates

Ensure timely installation of security patches and updates for Apache Cassandra to address known vulnerabilities.