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Red Hat Security Advisory 2012-1011-01

Red Hat Security Advisory 2012-1011-01
Posted Jun 20, 2012
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2012-1011-01 - 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 Web 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 | 0530c812543209282f4bf0533f0bd0d70ac3922e7ba41df6881a413649ce38f7

Red Hat Security Advisory 2012-1011-01

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

Synopsis: Moderate: mod_cluster security update
Advisory ID: RHSA-2012:1011-01
Product: JBoss Enterprise Web Platform
Advisory URL: https://rhn.redhat.com/errata/RHSA-2012-1011.html
Issue date: 2012-06-19
CVE Names: CVE-2012-1154
=====================================================================

1. Summary:

An update for JBoss Enterprise Web Platform 5.1.2 that fixes one security
issue is now available from the Red Hat Customer Portal.

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. 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 Web Platform 5.1.2 release (RHSA-2011:1806) 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 Web
Platform's "jboss-as-web/server/[PROFILE]/deploy/" directory and any other
customized configuration files.

All users of JBoss Enterprise Web Platform 5.1.2 as provided from the Red
Hat Customer Portal are advised to install this update.

3. Solution:

The References section of this erratum contains a download link (you must
log in to download the update). Before applying the update, back up your
existing JBoss Enterprise Web Platform installation (including all
applications and configuration files).

The JBoss server process must be restarted for this update to take effect.

4. 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

5. References:

https://www.redhat.com/security/data/cve/CVE-2012-1154.html
https://access.redhat.com/security/updates/classification/#moderate
https://access.redhat.com/jbossnetwork/restricted/listSoftware.html?product=enterpriseweb.platform&downloadType=securityPatches&version=5.1.2
https://rhn.redhat.com/errata/RHSA-2011-1806.html

6. 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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