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Red Hat Security Advisory 2013-0164-01

Red Hat Security Advisory 2013-0164-01
Posted Jan 15, 2013
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2013-0164-01 - 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 and Java Servlet technologies. It was found that when an application used FORM authentication, along with another component that calls request.setUserPrincipal() before the call to FormAuthenticator#authenticate(), it was possible to bypass the security constraint checks in the FORM authenticator by appending "/j_security_check" to the end of a URL. A remote attacker with an authenticated session on an affected application could use this flaw to circumvent authorization controls, and thereby access resources not permitted by the roles associated with their authenticated session.

tags | advisory, java, remote, web
systems | linux, redhat
advisories | CVE-2012-3546
SHA-256 | 2dc31609e5e28a443a06ee639d65c5c49d48575ef3fe138719bad835aaf0e092

Red Hat Security Advisory 2013-0164-01

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

Synopsis: Important: jbossweb security update
Advisory ID: RHSA-2013:0164-01
Product: JBoss Enterprise Application Platform
Advisory URL: https://rhn.redhat.com/errata/RHSA-2013-0164.html
Issue date: 2013-01-15
CVE Names: CVE-2012-3546
=====================================================================

1. Summary:

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

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. 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 when an application used FORM authentication, along with
another component that calls request.setUserPrincipal() before the call to
FormAuthenticator#authenticate() (such as the Single-Sign-On valve), it was
possible to bypass the security constraint checks in the FORM authenticator
by appending "/j_security_check" to the end of a URL. A remote attacker
with an authenticated session on an affected application could use this
flaw to circumvent authorization controls, and thereby access resources not
permitted by the roles associated with their authenticated session.
(CVE-2012-3546)

Warning: Before applying this update, back up your existing JBoss
Enterprise Application Platform installation (including all applications
and configuration files).

Users of JBoss Enterprise Application Platform 6.0.1 on Red Hat
Enterprise Linux 5 and 6 should upgrade to these updated packages, which
correct this issue. The JBoss server process must be restarted for this
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 (http://bugzilla.redhat.com/):

883634 - CVE-2012-3546 Tomcat/JBoss Web: Bypass of security constraints

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-7.0.17-3.Final_redhat_2.ep6.el5.src.rpm

noarch:
jbossweb-7.0.17-3.Final_redhat_2.ep6.el5.noarch.rpm
jbossweb-lib-7.0.17-3.Final_redhat_2.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-7.0.17-3.Final_redhat_2.ep6.el6.src.rpm

noarch:
jbossweb-7.0.17-3.Final_redhat_2.ep6.el6.noarch.rpm
jbossweb-lib-7.0.17-3.Final_redhat_2.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-2012-3546.html
https://access.redhat.com/security/updates/classification/#important
http://tomcat.apache.org/security-6.html

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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