RHSA-2014:0441 - Security Advisory

Topic

Updated Messaging component packages that fix one security issue, several
bugs, and add various enhancements are now available for Red Hat Enterprise
MRG 2.5 for Red Hat Enterprise Linux 5.

The Red Hat Security Response Team has rated this update as having Moderate
security impact. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available from the CVE link in
the References section.

Description

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 found that MRG Management Console (cumin) used the crypt(3)
DES-based hash function to hash passwords. DES-based hashing has known
weaknesses that allow an attacker to more easily recover plain text
passwords from hashes via brute-force guessing. An attacker able to
compromise a cumin user database could potentially use this flaw to recover
plain text passwords from the password hashes stored in that database.
(CVE-2013-6445)

Note: In deployments where user account information is stored in a database
managed by cumin, it is recommended that users change their passwords after
this update is applied.

This issue was discovered by Tomáš Nováčik of the Red Hat MRG Quality
Engineering team.

This update also fixes several 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 are
advised to upgrade to these updated packages, which resolve these issues
and add these enhancements. 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.

Solution

Before applying this update, make sure all previously released errata
relevant to your system have been applied.

This update is available via the Red Hat Network. Details on how to use the
Red Hat Network to apply this update are available at
https://access.redhat.com/site/articles/11258

Affected Products

• MRG Grid from RHUI 2 for RHEL 5 x86_64
• Red Hat Enterprise MRG Messaging 2 for RHEL 5 x86_64
• Red Hat Enterprise MRG Messaging 2 for RHEL 5 i386
• MRG Grid 2 for RHEL 5 x86_64
• MRG Grid 2 for RHEL 5 i386

Fixes

• BZ - 1044315 - CVE-2013-6445 cumin: weak password hashing

CVEs

• CVE-2013-6445

References

• https://access.redhat.com/security/updates/classification/#moderate
• https://access.redhat.com/site/documentation/en-US/Red_Hat_Enterprise_MRG/2/html/Technical_Notes/index.html