Bug 1409748 (CVE-2016-9877) - CVE-2016-9877 rabbitmq: MQTT connection authentication succeeds with empty password
Summary: CVE-2016-9877 rabbitmq: MQTT connection authentication succeeds with empty pa...
Alias: CVE-2016-9877
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
Depends On: 1409749 1409750
Blocks: 1409752
TreeView+ depends on / blocked
Reported: 2017-01-03 08:52 UTC by Martin Prpič
Modified: 2021-03-11 14:53 UTC (History)
26 users (show)

Fixed In Version: RabbitMQ 3.5.8, RabbitMQ 3.6.6
Doc Type: If docs needed, set a value
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Clone Of:
Last Closed: 2017-04-13 02:40:36 UTC

Attachments (Terms of Use)

System ID Private Priority Status Summary Last Updated
Github rabbitmq rabbitmq-mqtt pull 98 0 None None None 2017-12-07 08:02:08 UTC

Description Martin Prpič 2017-01-03 08:52:59 UTC
It was found that RabbitMQ's MQTT (MQ Telemetry Transport) connection authentication with a username/password pair succeeds if an existing username is provided but the password is omitted from the connection request. Connections that use TLS with a client-provided certificate are not affected.

Comment 1 Martin Prpič 2017-01-03 08:53:21 UTC
External References:


Comment 2 Martin Prpič 2017-01-03 08:54:09 UTC
Created rabbitmq-server tracking bugs for this issue:

Affects: epel-all [bug 1409749]
Affects: fedora-all [bug 1409750]

Comment 7 Peter Lemenkov 2017-12-06 12:31:27 UTC
Indeed we don't use MQTT in our OpenStack configuration, so it was decided that the impact of this issue is negligibly low.

It's possible to backport the fix to OSP10 though.

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