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Bug 1409748 - (CVE-2016-9877) CVE-2016-9877 rabbitmq: MQTT connection authentication succeeds with empty password
CVE-2016-9877 rabbitmq: MQTT connection authentication succeeds with empty pa...
Status: CLOSED WONTFIX
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
medium Severity medium
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Assigned To: Red Hat Product Security
impact=moderate,public=20161220,repor...
: Security
Depends On: 1409749 1409750
Blocks: 1409752
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Reported: 2017-01-03 03:52 EST by Martin Prpič
Modified: 2017-12-07 03:02 EST (History)
26 users (show)

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Fixed In Version: RabbitMQ 3.5.8, RabbitMQ 3.6.6
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Last Closed: 2017-04-12 22:40:36 EDT
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RHEL 7.3 requirements from Atomic Host:
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External Trackers
Tracker ID Priority Status Summary Last Updated
Github rabbitmq/rabbitmq-mqtt/pull/98 None None None 2017-12-07 03:02 EST

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Description Martin Prpič 2017-01-03 03:52:59 EST 
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 03:53:21 EST 
External References:

https://pivotal.io/security/cve-2016-9877
Comment 2 Martin Prpič 2017-01-03 03:54:09 EST 
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 07:31:27 EST 
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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