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Red Hat Security Advisory 2013-0569-01

Red Hat Security Advisory 2013-0569-01
Posted Feb 27, 2013
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2013-0569-01 - JBoss Enterprise SOA Platform is the next-generation ESB and business process automation infrastructure. JBoss Enterprise Portal Platform is the open source implementation of the Java EE suite of services and Portal services running atop JBoss Enterprise Application Platform. An attack technique was found against the W3C XML Encryption Standard when block ciphers were used in cipher-block chaining mode. A remote attacker could use this flaw to conduct chosen-ciphertext attacks, leading to the recovery of the entire plain text of a particular cryptogram by examining the differences between SOAP responses sent from JBoss Web Services.

tags | advisory, java, remote, web
systems | linux, redhat
advisories | CVE-2011-1096
MD5 | f1fa6ca3fbcdc196fa2c6137375aa6d8

Red Hat Security Advisory 2013-0569-01

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=====================================================================
Red Hat Security Advisory

Synopsis: Important: JBoss Web Services security update
Advisory ID: RHSA-2013:0569-01
Product: JBoss Enterprise Middleware
Advisory URL: https://rhn.redhat.com/errata/RHSA-2013-0569.html
Issue date: 2013-02-26
CVE Names: CVE-2011-1096
=====================================================================

1. Summary:

An update for the JBoss Web Services component in JBoss Enterprise SOA
Platform 4.3 CP05 and JBoss Enterprise Portal Platform 4.3 CP07 which fixes
one security issue 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.

2. Description:

JBoss Enterprise SOA Platform is the next-generation ESB and business
process automation infrastructure. JBoss Enterprise Portal Platform is the
open source implementation of the Java EE suite of services and Portal
services running atop JBoss Enterprise Application Platform.

An attack technique was found against the W3C XML Encryption Standard when
block ciphers were used in cipher-block chaining (CBC) mode. A remote
attacker could use this flaw to conduct chosen-ciphertext attacks, leading
to the recovery of the entire plain text of a particular cryptogram by
examining the differences between SOAP (Simple Object Access Protocol)
responses sent from JBoss Web Services. (CVE-2011-1096)

Red Hat would like to thank Juraj Somorovsky of Ruhr-University Bochum for
reporting this issue.

Note: Manual action is required to apply this update. The CVE-2011-1096
issue is an attack on the WS-Security standard itself. Using new
Galois/Counter Mode (GCM) based algorithms for WS-Security encryption is
the W3C suggested way of dealing with this issue. To use GCM algorithms in
your application, update the encrypt element of all jboss-ws-security
configuration to specify a GCM algorithm. The following is an example
directive:

encrypt type="x509v3" algorithm="aes-128-gcm" alias="wsse"

Warning: Before applying this update, back up your JBoss installation,
including any databases, database settings, applications, configuration
files, and so on.

All users of JBoss Enterprise SOA Platform 4.3 CP05 and JBoss Enterprise
Portal Platform 4.3 CP07 as provided from the Red Hat Customer Portal are
advised to apply this update.

3. Solution:

The References section of this erratum contains download links (you must
log in to download the update). Before applying this update, back up your
JBoss installation, including any databases, database settings,
applications, configuration files, and so on.

For both JBoss Enterprise Portal Platform and JBoss Enterprise SOA
Platform, it is recommended to halt the server by stopping the JBoss
Application Server process before installing this update, and then after
installing the update, restart the server by starting the JBoss Application
Server process.

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

681916 - CVE-2011-1096 jbossws: Prone to character encoding pattern attack (XML Encryption flaw)

5. References:

https://www.redhat.com/security/data/cve/CVE-2011-1096.html
https://access.redhat.com/security/updates/classification/#important
https://access.redhat.com/jbossnetwork/restricted/listSoftware.html?product=soaplatform&downloadType=securityPatches&version=4.3.0.GA_CP05
https://access.redhat.com/jbossnetwork/restricted/listSoftware.html?product=jbportal&downloadType=securityPatches&version=4.3+CP07

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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