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AUSCERT External Security Bulletin Redistribution
Important: Red Hat JBoss SOA Platform 5.3.1 update
13 June 2013
AusCERT Security Bulletin Summary
Product: JBoss SOA Platform 5.3.1
Publisher: Red Hat
Operating System: Red Hat Enterprise Linux AS/ES/WS 4
Red Hat Enterprise Linux Server 5
Red Hat Enterprise Linux Server 6
Impact/Access: Reduced Security -- Remote/Unauthenticated
CVE Names: CVE-2012-5575 CVE-2011-2487 CVE-2011-1096
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Red Hat Security Advisory
Synopsis: Important: Red Hat JBoss SOA Platform 5.3.1 update
Advisory ID: RHSA-2013:0943-01
Product: Red Hat JBoss Middleware
Advisory URL: https://rhn.redhat.com/errata/RHSA-2013-0943.html
Issue date: 2013-06-12
CVE Names: CVE-2012-5575
Red Hat JBoss SOA Platform 5.3.1 roll up patch 2, which fixes one security
issue and various bugs, is now available from the Red Hat Customer Portal.
The Red Hat Security Response Team has rated this update as having
important 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.
Red Hat JBoss SOA Platform is the next-generation ESB and business process
automation infrastructure. Red Hat JBoss SOA Platform allows IT to leverage
existing (MoM and EAI), modern (SOA and BPM-Rules), and future (EDA and
CEP) integration methodologies to dramatically improve business process
execution speed and quality.
This roll up patch serves as a cumulative upgrade for Red Hat JBoss SOA
Platform 5.3.1. It includes various bug fixes. The following security
issue is also fixed with this release:
XML encryption backwards compatibility attacks were found against various
frameworks, including Apache CXF. An attacker could force a server to use
insecure, legacy cryptosystems, even when secure cryptosystems were enabled
on endpoints. By forcing the use of legacy cryptosystems, flaws such as
CVE-2011-1096 and CVE-2011-2487 would be exposed, allowing plain text to be
recovered from cryptograms and symmetric keys. This issue affected both the
JBoss Web Services CXF (jbossws-cxf) and JBoss Web Services Native
(jbossws-native) stacks. (CVE-2012-5575)
If you are using jbossws-cxf, then automatic checks to prevent this flaw
are only run when WS-SecurityPolicy is used to enforce security
requirements. It is best practice to use WS-SecurityPolicy to enforce
security requirements. To enable WS-Security with this update, you must
use the global 'war-security domain="JBossWS"' configuration directive at
the beginning of the jboss-esb.xml file. Refer to the update's
instructions in the Customer Portal for further information.
If you are using jbossws-native, the fix for this flaw is implemented by
two new configuration parameters in the 'encryption' element. This element
can be a child of 'requires' in both client and server wsse configuration
descriptors (set on a per-application basis via the application's
jboss-wsse-server.xml and jboss-wsse-client.xml files). The new attributes
are 'algorithms' and 'keyWrapAlgorithms'. These attributes should contain a
blank space or comma separated list of algorithm IDs that are allowed for
the encrypted incoming message, both for encryption and private key
wrapping. For backwards compatibility, no algorithm checks are performed by
default for empty lists or missing attributes.
For example (do not include the line break in your configuration):
encryption algorithms="aes-192-gcm aes-256-gcm"
Specifies that incoming messages are required to be encrypted, and that the
only permitted encryption algorithms are AES-192 and 256 in GCM mode, and
RSA-OAEP only for key wrapping.
Before performing any decryption, the jbossws-native stack will verify that
each algorithm specified in the incoming messages is included in the
allowed algorithms lists from these new encryption element attributes. The
algorithm values to be used for 'algorithms' and 'keyWrapAlgorithms' are
the same as for 'algorithm' and 'keyWrapAlgorithm' in the 'encrypt'
Red Hat would like to thank Tibor Jager, Kenneth G. Paterson and Juraj
Somorovsky of Ruhr-University Bochum for reporting this issue.
Warning: Before applying the update, back up your existing Red Hat JBoss
SOA Platform installation (including its databases, applications,
configuration files, and so on).
All users of Red Hat JBoss SOA Platform 5.3.1 as provided from the Red
Hat Customer Portal are advised to apply this roll up patch.
The References section of this erratum contains a download link (you must
log in to download the update). Before applying the update, back up your
existing Red Hat JBoss SOA Platform installation (including its
databases, applications, configuration files, and so on).
Note that it is recommended to halt the Red Hat JBoss SOA Platform
server by stopping the JBoss Application Server process before installing
this update, and then after installing the update, restart the Red Hat
JBoss SOA Platform server by starting the JBoss Application Server
4. Bugs fixed (http://bugzilla.redhat.com/):
880443 - CVE-2012-5575 jbossws-native, jbossws-cxf, apache-cxf: XML encryption backwards compatibility attacks
The Red Hat security contact is <firstname.lastname@example.org>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2013 Red Hat, Inc.
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