RHSA-2012:1166 - Security Advisory

Topic

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.

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.

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

Affected Products

• JBoss Enterprise Web Server 1 for RHEL 6 x86_64
• JBoss Enterprise Web Server 1 for RHEL 6 i386
• JBoss Enterprise Web Server 1 for RHEL 5 x86_64
• JBoss Enterprise Web Server 1 for RHEL 5 i386

Fixes

• BZ - 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

CVEs

• CVE-2012-1154

References

• https://access.redhat.com/security/updates/classification/#moderate
• https://rhn.redhat.com/errata/RHSA-2012-0035.html