CVE-2019-11465 : What You Need to Know

A vulnerability has been found in Couchbase Server versions 5.5.x through 5.5.3 and 6.0.0 that exposes usernames when using the Memcached "connections" stat block command. The issue has been resolved in versions 5.5.4 and 6.0.1.

Understanding CVE-2019-11465

This CVE identifies a security flaw in Couchbase Server versions that could lead to the exposure of usernames.

What is CVE-2019-11465?

The vulnerability in Couchbase Server versions 5.5.x through 5.5.3 and 6.0.0 allows the disclosure of usernames when utilizing the Memcached "connections" stat block command.

The Impact of CVE-2019-11465

The vulnerability could result in the exposure of usernames of all currently logged-in users, even if logs are redacted for privacy purposes.

Technical Details of CVE-2019-11465

This section provides more in-depth technical information about the CVE.

Vulnerability Description

The Memcached "connections" stat block command in affected versions of Couchbase Server reveals usernames without redaction, potentially compromising user privacy.

Affected Systems and Versions

Couchbase Server versions 5.5.x through 5.5.3 and 6.0.0

Exploitation Mechanism

The vulnerability occurs when using the Memcached "connections" stat block command, leading to the unintended exposure of usernames.

Mitigation and Prevention

Protecting systems from this vulnerability is crucial to maintaining data security.

Immediate Steps to Take

Upgrade to Couchbase Server versions 5.5.4 and 6.0.1 where the issue has been resolved
Monitor system logs for any unauthorized access or suspicious activities

Long-Term Security Practices

Regularly update and patch Couchbase Server to mitigate potential security risks
Implement access controls and user permissions to limit exposure of sensitive information

Patching and Updates

Apply patches and updates provided by Couchbase to ensure the latest security fixes are in place