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

Synopsis:          Moderate: Red Hat JBoss Web Framework Kit 2.4.0 update
Advisory ID:       RHSA-2014:0045-01
Product:           Red Hat JBoss Web Framework Kit
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2014-0045.html
Issue date:        2014-01-20
CVE Names:         CVE-2013-6447 CVE-2013-6448 
=====================================================================

1. Summary:

An update for the seam-remoting component of Red Hat JBoss Web Framework
Kit 2.4.0 that fixes two security issues is now available from the Red Hat
Customer Portal.

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.

2. Description:

Red Hat JBoss Web Framework Kit combines popular open source web frameworks
into a single solution for Java applications. The JBoss Seam Remoting
component provides a convenient method of remotely accessing Seam
components from a web page, using AJAX (Asynchronous Javascript and XML).

It was found that the ExecutionHandler, PollHandler, and
SubscriptionHandler classes in JBoss Seam Remoting unmarshalled
user-supplied XML and resolved external entities in this XML. A remote
attacker could use this flaw to read files accessible to the user running
the application server, and potentially perform other more advanced XML
External Entity (XXE) attacks. (CVE-2013-6447)

It was found that the InterfaceGenerator handler in JBoss Seam Remoting
exposed details of all classes and methods on the server's classpath, not
only methods with the org.jboss.seam.annotations.remoting.WebRemote
annotation. A remote attacker could use this flaw to determine which
classes are deployed on the JBoss server. (CVE-2013-6448)

Red Hat would like to thank Jon Passki of Coverity SRL for reporting these
issues.

All users of Red Hat JBoss Web Framework Kit 2.4.0 as provided from the Red
Hat Customer Portal are advised to apply this update.

3. Solution:

The References section of this erratum contains a download link (you must
log in to download the update). Before applying this update, back up your
existing installation of Red Hat JBoss Web Framework Kit.

The JBoss server process must be restarted for this update to take effect.

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

1044784 - CVE-2013-6447 JBoss Seam: XML eXternal Entity (XXE) flaw in remoting
1044794 - CVE-2013-6448 JBoss Seam: Information disclosure in remoting

5. References:

https://www.redhat.com/security/data/cve/CVE-2013-6447.html
https://www.redhat.com/security/data/cve/CVE-2013-6448.html
https://access.redhat.com/security/updates/classification/#moderate
https://access.redhat.com/jbossnetwork/restricted/listSoftware.html?product=web.framework.kit&downloadType=securityPatches&version=2.4.0

6. Contact:

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

Copyright 2014 Red Hat, Inc.
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