RHEL 5 : MRG Messaging (RHSA-2012:1277)

This script is Copyright (C) 2014-2017 Tenable Network Security, Inc.


Synopsis :

The remote Red Hat host is missing one or more security updates.

Description :

Updated Messaging component packages that fix two security issues,
multiple bugs, and add various enhancements are now available for Red
Hat Enterprise MRG 2.2 for Red Hat Enterprise Linux 5.

The Red Hat Security Response Team has rated this update as having
moderate security impact. Common Vulnerability Scoring System (CVSS)
base scores, which give detailed severity ratings, are available for
each vulnerability from the CVE links in the References section.

Red Hat Enterprise MRG (Messaging, Realtime, and Grid) is a
next-generation IT infrastructure for enterprise computing. MRG offers
increased performance, reliability, interoperability, and faster
computing for enterprise customers.

MRG Messaging is a high-speed reliable messaging distribution for
Linux based on AMQP (Advanced Message Queuing Protocol), an open
protocol standard for enterprise messaging that is designed to make
mission critical messaging widely available as a standard service, and
to make enterprise messaging interoperable across platforms,
programming languages, and vendors. MRG Messaging includes an AMQP
0-10 messaging broker; AMQP 0-10 client libraries for C++, Java JMS,
and Python; as well as persistence libraries and management tools.

It was discovered that the Apache Qpid daemon (qpidd) did not allow
the number of connections from clients to be restricted. A malicious
client could use this flaw to open an excessive amount of connections,
preventing other legitimate clients from establishing a connection to
qpidd. (CVE-2012-2145)

To address CVE-2012-2145, new qpidd configuration options were
introduced: max-negotiate-time defines the time during which initial
protocol negotiation must succeed, connection-limit-per-user and
connection-limit-per-ip can be used to limit the number of connections
per user and client host IP. Refer to the qpidd manual page for
additional details.

It was discovered that qpidd did not require authentication for
'catch-up' shadow connections created when a new broker joins a
cluster. A malicious client could use this flaw to bypass client
authentication. (CVE-2012-3467)

This update also fixes multiple bugs and adds enhancements.
Documentation for these changes will be available shortly from the
Technical Notes document linked to in the References section.

All users of the Messaging capabilities of Red Hat Enterprise MRG 2.2
are advised to upgrade to these updated packages, which resolve the
issues and add the enhancements noted in the Red Hat Enterprise MRG 2
Technical Notes. After installing the updated packages, stop the
cluster by either running 'service qpidd stop' on all nodes, or
'qpid-cluster --all-stop' on any one of the cluster nodes. Once
stopped, restart the cluster with 'service qpidd start' on all nodes
for the update to take effect.

See also :

https://www.redhat.com/security/data/cve/CVE-2012-2145.html
https://www.redhat.com/security/data/cve/CVE-2012-3467.html
http://www.nessus.org/u?385bfeb4
http://rhn.redhat.com/errata/RHSA-2012-1277.html
http://www.nessus.org/u?b2da6e03

Solution :

Update the affected packages.

Risk factor :

Medium / CVSS Base Score : 5.0
(CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P)
CVSS Temporal Score : 4.1
(CVSS2#E:F/RL:OF/RC:ND)
Public Exploit Available : true

Family: Red Hat Local Security Checks

Nessus Plugin ID: 76648 ()

Bugtraq ID: 54954

CVE ID: CVE-2012-2145
CVE-2012-3467

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