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Red Hat Security Advisory 2012-1052-01

Red Hat Security Advisory 2012-1052-01
Posted Jul 3, 2012
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2012-1052-01 - mod_cluster is an Apache HTTP Server based load balancer that forwards requests from httpd to application server nodes. It can use the AJP, HTTP, or HTTPS protocols for communication with application server nodes. The JBoss Enterprise Application Platform 5.1.2 release introduced a regression, causing mod_cluster to register and expose the root context of a server by default, even when "ROOT" was in the "excludedContexts" list in the mod_cluster configuration. If an application was deployed on the root context, a remote attacker could use this flaw to bypass intended access restrictions and gain access to that application.

tags | advisory, remote, web, root, protocol
systems | linux, redhat
advisories | CVE-2012-1154
SHA-256 | ee17c0226e885f70c197193cd8587c7e1e7303d76510efafd7f64a7c8aa78b8b

Red Hat Security Advisory 2012-1052-01

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

Synopsis: Moderate: mod_cluster security update
Advisory ID: RHSA-2012:1052-01
Product: JBoss Enterprise Application Platform
Advisory URL: https://rhn.redhat.com/errata/RHSA-2012-1052.html
Issue date: 2012-07-03
CVE Names: CVE-2012-1154
=====================================================================

1. Summary:

Updated mod_cluster packages that fix one security issue are now available
for JBoss Enterprise Application Platform 5.1.2 for Red Hat
Enterprise Linux 4, 5, and 6.

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. Relevant releases/architectures:

JBoss Enterprise Application Platform 5 for RHEL 4 AS - noarch
JBoss Enterprise Application Platform 5 for RHEL 4 ES - noarch
JBoss Enterprise Application Platform 5 for RHEL 5 Server - noarch
JBoss Enterprise Application Platform 5 for RHEL 6 Server - noarch

3. Description:

mod_cluster is an Apache HTTP Server (httpd) based load balancer that
forwards requests from httpd to application server nodes. It can use the
AJP, HTTP, or HTTPS protocols for communication with application server
nodes.

The JBoss Enterprise Application Platform 5.1.2 release (RHSA-2011:1800,
RHSA-2011:1799, RHSA-2011:1798) introduced a regression, causing
mod_cluster to register and expose the root context of a server by default,
even when "ROOT" was in the "excludedContexts" list in the mod_cluster
configuration. If an application was deployed on the root context, a remote
attacker could use this flaw to bypass intended access restrictions and
gain access to that application. (CVE-2012-1154)

Warning: Before applying this update, back up your JBoss Enterprise
Application Platform's "server/[PROFILE]/deploy/" directory, along with all
other customized configuration files.

Users of JBoss Enterprise Application Platform 5.1.2 on Red Hat Enterprise
Linux 4, 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/):

802200 - CVE-2012-1154 mod_cluster registers and exposes the root context of a server by default, despite ROOT being in the excluded-contexts list

6. Package List:

JBoss Enterprise Application Platform 5 for RHEL 4 AS:

Source:
ftp://updates.redhat.com/enterprise/4AS/en/JBEAP/SRPMS/mod_cluster-1.0.10-4.GA_CP02_patch01.ep5.el4.src.rpm

noarch:
mod_cluster-demo-1.0.10-4.GA_CP02_patch01.ep5.el4.noarch.rpm
mod_cluster-jbossas-1.0.10-4.GA_CP02_patch01.ep5.el4.noarch.rpm
mod_cluster-jbossweb2-1.0.10-4.GA_CP02_patch01.ep5.el4.noarch.rpm
mod_cluster-tomcat6-1.0.10-4.GA_CP02_patch01.ep5.el4.noarch.rpm

JBoss Enterprise Application Platform 5 for RHEL 4 ES:

Source:
ftp://updates.redhat.com/enterprise/4ES/en/JBEAP/SRPMS/mod_cluster-1.0.10-4.GA_CP02_patch01.ep5.el4.src.rpm

noarch:
mod_cluster-demo-1.0.10-4.GA_CP02_patch01.ep5.el4.noarch.rpm
mod_cluster-jbossas-1.0.10-4.GA_CP02_patch01.ep5.el4.noarch.rpm
mod_cluster-jbossweb2-1.0.10-4.GA_CP02_patch01.ep5.el4.noarch.rpm
mod_cluster-tomcat6-1.0.10-4.GA_CP02_patch01.ep5.el4.noarch.rpm

JBoss Enterprise Application Platform 5 for RHEL 5 Server:

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/JBEAP/SRPMS/mod_cluster-1.0.10-4.1.GA_CP02_patch01.ep5.el5.src.rpm

noarch:
mod_cluster-demo-1.0.10-4.1.GA_CP02_patch01.ep5.el5.noarch.rpm
mod_cluster-jbossas-1.0.10-4.1.GA_CP02_patch01.ep5.el5.noarch.rpm
mod_cluster-jbossweb2-1.0.10-4.1.GA_CP02_patch01.ep5.el5.noarch.rpm
mod_cluster-tomcat6-1.0.10-4.1.GA_CP02_patch01.ep5.el5.noarch.rpm

JBoss Enterprise Application Platform 5 for RHEL 6 Server:

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/JBEAP/SRPMS/mod_cluster-1.0.10-4.1.GA_CP02_patch01.ep5.el6.src.rpm

noarch:
mod_cluster-demo-1.0.10-4.1.GA_CP02_patch01.ep5.el6.noarch.rpm
mod_cluster-jbossas-1.0.10-4.1.GA_CP02_patch01.ep5.el6.noarch.rpm
mod_cluster-jbossweb2-1.0.10-4.1.GA_CP02_patch01.ep5.el6.noarch.rpm
mod_cluster-tomcat6-1.0.10-4.1.GA_CP02_patch01.ep5.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-2012-1154.html
https://access.redhat.com/security/updates/classification/#moderate
https://rhn.redhat.com/errata/RHSA-2011-1800.html
https://rhn.redhat.com/errata/RHSA-2011-1799.html
https://rhn.redhat.com/errata/RHSA-2011-1798.html

8. Contact:

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

Copyright 2012 Red Hat, Inc.
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