CVE-2015-6524 Improper Input Validation in Apache ActiveMQ

What is CVE-2015-6524?

CVE-2015-6524 is a medium-severity authentication bypass vulnerability in Apache Activemq, published on 24 Aug 2015. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The LDAPLoginModule implementation in the Java Authentication and Authorization Service (JAAS) in Apache ActiveMQ 5.x before 5.10.1 allows wildcard operators in usernames, which allows remote attackers to obtain credentials via a brute force attack. NOTE: this identifier was SPLIT from CVE-2014-3612 per ADT2 due to different vulnerability types.

Weakness: CWE-255

Which versions are affected by CVE-2015-6524?

4 open source packages ship an affected version, including org.apache.activemq:activemq-broker and org.apache.activemq:activemq-jaas. It affects 2 products.

Products include Apache Activemq, Fedoraproject Fedora.

How do I fix CVE-2015-6524?

Upgrade org.apache.activemq:activemq-broker to 5.10.2 or later.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2015-6524 being exploited?

There is no known exploitation of CVE-2015-6524 in the wild and no public exploit code.

Other vulnerabilities in Apache Activemq

• CVE-2023-46604 Apache ActiveMQ Deserialization of Untrusted Data Exploited Critical 10.0
• CVE-2016-3088 Apache ActiveMQ Improper Input Validation Exploited Critical 9.8
• CVE-2026-34197 Apache ActiveMQ Improper Input Validation Exploited High 8.8
• CVE-2020-11998 Remote code execution in Apache ActiveMQ Critical 9.8
• CVE-2013-7285 Command Injection in Xstream Critical 9.8

All Apache Activemq vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2015-6524, GHSA-23cr-5hr4-rgwv, UBUNTU-CVE-2015-6524.