Date: Thu, 10 Sep 2020 07:27:04 +0200 From: Jean-Baptiste Onofre <jb@...thrax.net> To: oss-security@...ts.openwall.com Subject: [CVE-2020-13920] ActiveMQ JMX vulenarable to MITM attack CVE-2020-13920: Apache ActiveMQ JMX is vulnerable to a MITM attack Severity: Moderate Vendor: The Apache Software Foundation Affected Version: Apache ActiveMQ version prior to 5.15.12 Vulnerability details: Apache ActiveMQ uses LocateRegistry.createRegistry() to create the JMX RMI registry and binds the server to the "jmxrmi" entry. It is possible to connect to the registry without authentication and call the rebind method to rebind jmxrmi to something else. If an attacker creates another server to proxy the original, and bound that, he effectively becomes a man in the middle and is able to intercept the credentials when an user connects. Mitigation: Upgrade to Apache ActiveMQ 5.15.12 Credit: Jonathan Gallimore & Colm O hEigeartaigh
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