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                   Red Hat Security Advisory

Synopsis:          Important: JBoss Web Services security update
Advisory ID:       RHSA-2013:1143-01
Product:           Red Hat JBoss Middleware
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2013-1143.html
Issue date:        2013-08-07
CVE Names:         CVE-2012-5575 
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1. Summary:

An update for the JBoss Web Services component in Red Hat JBoss SOA
Platform 4.3 CP05 and Red Hat JBoss Portal 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:

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

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 only affected the
JBoss Web Services Native (jbossws-native) stack as Red Hat JBoss SOA
Platform 4 and Red Hat JBoss Portal 4 do not use JBoss Web Services CXF
(jbossws-cxf). (CVE-2012-5575)

For jbossws-native, the fix for CVE-2012-5575 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.

After applying this update, an "org.xml.sax.SAXParseException: DOCTYPE is
disallowed..." error may occur when using transactions. To work around this
issue, add -Dorg.jboss.ws.enable_doctype_decl=true to the application
server's run parameters.

Also, for users of Red Hat JBoss SOA Platform 4.3 CP05, after installing
this update, ensure any @BindingType annotations in your deployed
applications are updated to be applied to the relevant service
implementations rather than the interfaces.

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

All users of Red Hat JBoss SOA Platform 4.3 CP05 and Red Hat JBoss Portal
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 Red Hat JBoss SOA Platform and Red Hat JBoss Portal, 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.

After applying this update, an "org.xml.sax.SAXParseException: DOCTYPE is
disallowed..." error may occur when using transactions. To work around this
issue, add -Dorg.jboss.ws.enable_doctype_decl=true to the application
server's run parameters.

Also, for users of Red Hat JBoss SOA Platform 4.3 CP05, after installing
this update, ensure any @BindingType annotations in your deployed
applications are updated to be applied to the relevant service
implementations rather than the interfaces.

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

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://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
https://cxf.apache.org/cve-2012-5575.html

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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