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Red Hat Security Advisory 2012-1166-01

Red Hat Security Advisory 2012-1166-01
Posted Aug 14, 2012
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2012-1166-01 - 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 RHSA-2012:0035 update for JBoss Enterprise Web Server 1.0.2 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
MD5 | c5f34eed9b443e9c3d85d99ed579507e

Red Hat Security Advisory 2012-1166-01

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

Synopsis: Moderate: mod_cluster security update
Advisory ID: RHSA-2012:1166-01
Product: JBoss Enterprise Web Server
Advisory URL: https://rhn.redhat.com/errata/RHSA-2012-1166.html
Issue date: 2012-08-13
CVE Names: CVE-2012-1154
=====================================================================

1. Summary:

Updated mod_cluster packages that fix one security issue are now available
for JBoss Enterprise Web Server 1.0.2 for Red Hat Enterprise Linux 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 Web Server 1.0 for RHEL 5 Server - noarch
JBoss Enterprise Web Server 1.0 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 RHSA-2012:0035 update for JBoss Enterprise Web Server 1.0.2 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 the update, back up your existing JBoss Enterprise
Web Server installation (including all applications and configuration
files).

Users of JBoss Enterprise Web Server 1.0.2 on Red Hat Enterprise Linux 5
and 6 should upgrade to these updated packages, which resolve this issue.
Apache Tomcat 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 Web Server 1.0 for RHEL 5 Server:

Source:
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 Web Server 1.0 for RHEL 6 Server:

Source:
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-2012-0035.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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