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                   Red Hat Security Advisory

Synopsis:          Moderate: jbossweb security update
Advisory ID:       RHSA-2013:0647-01
Product:           JBoss Enterprise Application Platform
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2013-0647.html
Issue date:        2013-03-14
CVE Names:         CVE-2012-4431 CVE-2012-5885 CVE-2012-5886 
                   CVE-2012-5887 
=====================================================================

1. Summary:

Updated jbossweb packages for JBoss Enterprise Application Platform 6.0.1
that fix multiple security issues are now available for Red Hat Enterprise
Linux 5 and 6.

The Red Hat Security Response Team has rated this update as having moderate
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. Relevant releases/architectures:

JBoss Enterprise Application Platform 6 for RHEL 5 Server - noarch
JBoss Enterprise Application Platform 6 for RHEL 6 Server - noarch

3. Description:

JBoss Web is the web container, based on Apache Tomcat, in JBoss Enterprise
Application Platform. It provides a single deployment platform for the
JavaServer Pages (JSP) and Java Servlet technologies.

It was found that sending a request without a session identifier to a
protected resource could bypass the Cross-Site Request Forgery (CSRF)
prevention filter in JBoss Web. A remote attacker could use this flaw to
perform CSRF attacks against applications that rely on the CSRF prevention
filter and do not contain internal mitigation for CSRF. (CVE-2012-4431)

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)

Warning: Before applying this update, back up your existing JBoss
Enterprise Application Platform installation and deployed applications.

All users of JBoss Enterprise Application Platform 6.0.1 on Red Hat
Enterprise Linux 5 and 6 are advised to upgrade to these updated packages.
The JBoss server process must be restarted for the update to take effect.

4. Solution:

Before applying this update, make sure all previously-released errata
relevant to your system have been applied.

This update is available via the Red Hat Network. Details on how to
use the Red Hat Network to apply this update are available at
https://access.redhat.com/knowledge/articles/11258

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

873664 - CVE-2012-5885 CVE-2012-5886 CVE-2012-5887 tomcat: three DIGEST authentication implementation issues
883636 - CVE-2012-4431 Tomcat/JBoss Web - Bypass of CSRF prevention filter

6. Package List:

JBoss Enterprise Application Platform 6 for RHEL 5 Server:

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/JBEAP/SRPMS/jbossweb-7.0.17-4.Final_redhat_3.ep6.el5.src.rpm

noarch:
jbossweb-7.0.17-4.Final_redhat_3.ep6.el5.noarch.rpm
jbossweb-lib-7.0.17-4.Final_redhat_3.ep6.el5.noarch.rpm

JBoss Enterprise Application Platform 6 for RHEL 6 Server:

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/JBEAP/SRPMS/jbossweb-7.0.17-4.Final_redhat_3.ep6.el6.src.rpm

noarch:
jbossweb-7.0.17-4.Final_redhat_3.ep6.el6.noarch.rpm
jbossweb-lib-7.0.17-4.Final_redhat_3.ep6.el6.noarch.rpm

These packages are GPG signed by Red Hat for security.  Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/#package

7. References:

https://www.redhat.com/security/data/cve/CVE-2012-4431.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/#moderate

8. 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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