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Category:   Application (Web Server/CGI)  >   Red Hat JBoss Vendors:   Red Hat
(Red Hat Issues Fix for JBoss Fuse) Apache CXF SAML SSO Module Lets Remote Users Conduct XML Wrapping Attacks to Bypass Authentication on the Target System
SecurityTracker Alert ID:  1035121
SecurityTracker URL:  http://securitytracker.com/id/1035121
CVE Reference:   CVE-2015-5253   (Links to External Site)
Date:  Mar 1 2016
Impact:   User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  

Description:   A vulnerability was reported in Apache CXF. A remote user can bypass authentication. JBoss Fuse is affected.

A remote user can conduct an XML wrapping attack to bypass authentication on the target JAX-RS endpoint.

Systems using the SAML SSO module are affected.

Impact:   A remote user can bypass authentication on the target XML interface.
Solution:   Red Hat has issued a fix for JBoss Fuse.

The Red Hat advisory is available at:

https://rhn.redhat.com/errata/RHSA-2016-0321.html

Vendor URL:  rhn.redhat.com/errata/RHSA-2016-0321.html (Links to External Site)
Cause:   Authentication error
Underlying OS:  Linux (Red Hat Enterprise)

Message History:   This archive entry is a follow-up to the message listed below.
Nov 16 2015 Apache CXF SAML SSO Module Lets Remote Users Conduct XML Wrapping Attacks to Bypass Authentication on the Target System



 Source Message Contents

Subject:  [RHSA-2016:0321-01] Moderate: Red Hat JBoss Fuse 6.2.1 update

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

Synopsis:          Moderate: Red Hat JBoss Fuse 6.2.1 update
Advisory ID:       RHSA-2016:0321-01
Product:           Red Hat JBoss Fuse
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2016-0321.html
Issue date:        2016-02-29
CVE Names:         CVE-2015-5253 
=====================================================================

1. Summary:

Red Hat JBoss Fuse 6.2.1 Rollup Patch 1, which fixes one security issue and
includes several bug fixes and various enhancements, is now available from
the Red Hat Customer Portal.

Red Hat Product Security 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 Fuse, based on Apache ServiceMix, provides a small-footprint,
flexible, open source enterprise service bus and integration platform.

This patch is an update to Red Hat JBoss Fuse 6.2.1. It includes several
bug fixes, which are documented in the readme.txt file included with the
patch files.

The following security issue is addressed in this release:

It was found that Apache CXF permitted wrapping attacks in its support for
SAML SSO. A malicious user could construct a SAML response that would
bypass the login screen and possibly gain access to restricted information
or resources. (CVE-2015-5253)

Refer to the readme.txt file included with the patch files for
installation instructions.

All users of Red Hat JBoss Fuse 6.2.1 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).

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

1282411 - CVE-2015-5253 apache-cxf: SAML SSO processing is vulnerable to wrapping attack

5. References:

https://access.redhat.com/security/cve/CVE-2015-5253
https://access.redhat.com/security/updates/classification/#moderate
https://access.redhat.com/jbossnetwork/restricted/listSoftware.html?product=jboss.fuse&downloadType=securityPatches&version=6.2.1

6. Contact:

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

Copyright 2016 Red Hat, Inc.
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