Ubuntu Security Notice 3374-1 - It was discovered that RabbitMQ incorrectly handled MQTT authentication. A remote attacker could use this issue to authenticate successfully with an existing username by omitting the password.
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Ubuntu Security Notice USN-3374-1
July 31, 2017
rabbitmq-server vulnerability
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A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS
Summary:
RabbitMQ could allow unintended access to network services.
Software Description:
- rabbitmq-server: AMQP server written in Erlang
Details:
It was discovered that RabbitMQ incorrectly handled MQTT (MQ Telemetry
Transport) authentication. A remote attacker could use this issue to
authenticate successfully with an existing username by omitting the
password.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 16.04 LTS:
rabbitmq-server 3.5.7-1ubuntu0.16.04.2
Ubuntu 14.04 LTS:
rabbitmq-server 3.2.4-1ubuntu0.1
In general, a standard system update will make all the necessary changes.
References:
https://www.ubuntu.com/usn/usn-3374-1
CVE-2016-9877
Package Information:
https://launchpad.net/ubuntu/+source/rabbitmq-server/3.5.7-1ubuntu0.16.04.2
https://launchpad.net/ubuntu/+source/rabbitmq-server/3.2.4-1ubuntu0.1