CVE-2016-8741
Severity
Moderate
Affected components
Qpid Broker-J
Affected versions
6.0.1, 6.0.2, 6.0.3, 6.0.4, 6.0.5, and 6.1.0
Fixed versions
6.0.6, 6.1.1
Description
Information Leakage.
The Qpid Broker-J can be configured to use different so called AuthenticationProviders to handle user authentication. Among the choices are the SCRAM-SHA-1 and SCRAM-SHA-256 AuthenticationProvider types.
It was discovered that these AuthenticationProviders prematurely terminate the SCRAM SASL negotiation if the provided user name does not exist thus allowing remote attacker to determine the existence of user accounts.
The Vulnerability does not apply to AuthenticationProviders other than SCRAM-SHA-1 and SCRAM-SHA-256.
Mitigation
Users should upgrade the Qpid Broker-J to version 6.0.6, 6.1.1, or later (recommended).
If upgrading is not possible, the vulnerability can be mitigated by using an AuthenticationProvider other than SCRAM-SHA-1 and SCRAM-SHA-256.
References
Apache Qpid, Messaging built on AMQP; Copyright © 2015 The Apache Software Foundation; Licensed under the Apache License, Version 2.0; Apache Qpid, Qpid, Qpid Proton, Proton, Apache, the Apache feather logo, and the Apache Qpid project logo are trademarks of The Apache Software Foundation; All other marks mentioned may be trademarks or registered trademarks of their respective owners