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             AUSCERT External Security Bulletin Redistribution

                               ESB-2013.0911
                Important: Red Hat JBoss BRMS 5.3.1 update
                                2 July 2013

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           Red Hat JBoss BRMS
Publisher:         Red Hat
Operating System:  Windows
                   UNIX variants (UNIX, Linux, OSX)
Impact/Access:     Provide Misleading Information -- Remote with User Interaction
                   Reduced Security               -- Remote/Unauthenticated      
                   Unauthorised Access            -- Remote with User Interaction
Resolution:        Patch/Upgrade
CVE Names:         CVE-2012-5887 CVE-2012-5886 CVE-2012-5885
                   CVE-2012-5783 CVE-2012-5575 CVE-2011-2487
                   CVE-2011-1096  

Reference:         ESB-2013.0209
                   ESB-2013.0140
                   ESB-2013.0112
                   ESB-2013.0111
                   ESB-2012.1056.2
                   ESB-2012.0961
                   ESB-2012.0950

Original Bulletin: 
   https://rhn.redhat.com/errata/RHSA-2013-1006.html

Comment: This advisory references vulnerabilities in products which run on 
         platforms other than Red Hat. It is recommended that administrators
         running Red Hat JBoss BRMS check for an updated version of the 
         software for their operating system.

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                   Red Hat Security Advisory

Synopsis:          Important: Red Hat JBoss BRMS 5.3.1 update
Advisory ID:       RHSA-2013:1006-01
Product:           Red Hat JBoss Middleware
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2013-1006.html
Issue date:        2013-07-01
CVE Names:         CVE-2012-5575 CVE-2012-5783 CVE-2012-5885 
                   CVE-2012-5886 CVE-2012-5887 
=====================================================================

1. Summary:

Red Hat JBoss BRMS 5.3.1 roll up patch 2, which fixes multiple security
issues 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. 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.

2. Description:

Red Hat JBoss BRMS is a business rules management system for the
management, storage, creation, modification, and deployment of JBoss Rules.

This roll up patch serves as a cumulative upgrade for Red Hat JBoss BRMS
5.3.1. It includes various bug fixes. The following security
issues are 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.

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"
keyWrapAlgorithms="rsa_oaep"

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'
element.

The Jakarta Commons HttpClient component did not verify that the server
hostname matched the domain name in the subject's Common Name (CN) or
subjectAltName field in X.509 certificates. This could allow a
man-in-the-middle attacker to spoof an SSL server if they had a certificate
that was valid for any domain name. (CVE-2012-5783)

Multiple weaknesses were found in the JBoss Web DIGEST authentication
implementation, effectively reducing the security normally provided by
DIGEST authentication. A remote attacker could use these flaws to perform
replay attacks in some circumstances. (CVE-2012-5885, CVE-2012-5886,
CVE-2012-5887)

Red Hat would like to thank Tibor Jager, Kenneth G. Paterson and Juraj
Somorovsky of Ruhr-University Bochum for reporting CVE-2012-5575.

Warning: Before applying the update, back up your existing Red Hat JBoss
BRMS installation (including its databases, applications, configuration
files, and so on).

All users of Red Hat JBoss BRMS 5.3.1 as provided from the Red Hat Customer
Portal are advised to apply this roll up patch.

3. Solution:

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 BRMS installation (including its databases,
applications, configuration files, and so on).

Note that it is recommended to halt the Red Hat JBoss BRMS server by
stopping the JBoss Application Server process before installing this
update, and then after installing the update, restart the Red Hat JBoss
BRMS server by starting the JBoss Application Server process.

4. Bugs fixed (http://bugzilla.redhat.com/):

873317 - CVE-2012-5783 jakarta-commons-httpclient: missing connection hostname check against X.509 certificate name
873664 - CVE-2012-5885 CVE-2012-5886 CVE-2012-5887 tomcat: three DIGEST authentication implementation issues
880443 - CVE-2012-5575 jbossws-native, jbossws-cxf, apache-cxf: XML encryption backwards compatibility attacks

5. References:

https://www.redhat.com/security/data/cve/CVE-2012-5575.html
https://www.redhat.com/security/data/cve/CVE-2012-5783.html
https://www.redhat.com/security/data/cve/CVE-2012-5885.html
https://www.redhat.com/security/data/cve/CVE-2012-5886.html
https://www.redhat.com/security/data/cve/CVE-2012-5887.html
https://access.redhat.com/security/updates/classification/#important
https://access.redhat.com/jbossnetwork/restricted/listSoftware.html?product=brms&downloadType=securityPatches&version=5.3.1

6. Contact:

The Red Hat security contact is <secalert@redhat.com>.  More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2013 Red Hat, Inc.
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