Bug 836276 (CVE-2012-3467)

Summary:	CVE-2012-3467 qpid-cpp-server-cluster: unauthorized broker access caused by the use of NullAuthenticator catch-up shadow connections
Product:	[Other] Security Response	Reporter:	Jan Lieskovsky <jlieskov>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	aconway, ccoleman, jross, kim.vdriet, ktietz, messaging-bugs, mrg-program-list, security-response-team, tkramer
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	qpid-cpp 0.17	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2012-09-19 20:16:23 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	834608
Bug Blocks:	767033, 817177

Description Jan Lieskovsky 2012-06-28 14:35:38 UTC

In the AMQP messaging scheme implementation each broker can have both, direct connections and shadow connections. A shadow connection represents a connection to another broker in the cluster. Members use shadow connections to simulate the actions of other brokers, so that all members arrive at the same time. Output for shadow connections is just discarded, brokers only send data to their directly-connected clients.

A security flaw was found in the way the Apache Qpid C++ implementation performed authentication of connections creating "catch-up" shadow connections, which are used when broker joins the cluster. An AMQP client could use this to fake shadow connections to the AMQP broker. This issue was caused by using NullAuthenticator mechanism for authenticating these "catch-up" shadow connection and was fixed by making broker require authentication.

Upstream ticket:
[1] https://issues.apache.org/jira/browse/QPID-3849

Relevant upstream patch:
[2] http://svn.apache.org/viewvc?view=revision&revision=1352992

Comment 3 errata-xmlrpc 2012-09-19 17:21:38 UTC

This issue has been addressed in following products:

  MRG for RHEL-5 v. 2

Via RHSA-2012:1277 https://rhn.redhat.com/errata/RHSA-2012-1277.html

Comment 4 errata-xmlrpc 2012-09-19 17:30:38 UTC

This issue has been addressed in following products:

  MRG for RHEL-6 v.2

Via RHSA-2012:1279 https://rhn.redhat.com/errata/RHSA-2012-1279.html