Security Advisory Low: JBoss Enterprise Application Platform 5.1.2 update

Advisory: RHSA-2011:1805-1
Type: Security Advisory
Severity: Low
Issued on: 2011-12-08
Last updated on: 2011-12-08
Affected Products:
CVEs ( CVE-2011-4085


JBoss Enterprise Application Platform 5.1.2, which fixes two security
issues, various bugs, and adds several enhancements is now available from
the Red Hat Customer Portal.

The Red Hat Security Response Team has rated this update as having low
security impact. Common Vulnerability Scoring System (CVSS) base scores,
which give detailed severity ratings, are available for each vulnerability
from the CVE links in the References section.

JBoss Enterprise Application Platform is a platform for Java applications,
which integrates the JBoss Application Server with JBoss Hibernate and
JBoss Seam. OpenID4Java allows you to implement OpenID authentication in
your Java applications. OpenID4Java is a Technology Preview.

This JBoss Enterprise Application Platform 5.1.2 release serves as a
replacement for JBoss Enterprise Application Platform 5.1.1, and includes
bug fixes and enhancements. Refer to the JBoss Enterprise Application
Platform 5.1.2 Release Notes for information on the most significant of
these changes. The Release Notes will be available shortly from

The following security issues are also fixed with this release:

It was found that the invoker servlets, deployed by default via
httpha-invoker, only performed access control on the HTTP GET and POST
methods, allowing remote attackers to make unauthenticated requests by
using different HTTP methods. Due to the second layer of authentication
provided by a security interceptor, this issue is not exploitable on
default installations unless an administrator has misconfigured the
security interceptor or disabled it. (CVE-2011-4085)

It was found that the Attribute Exchange (AX) extension of OpenID4Java was
not checking to ensure attributes were signed. If AX was being used to
receive information that an application only trusts the identity provider
to assert, a remote attacker could use this flaw to conduct
man-in-the-middle attacks and compromise the integrity of the information
via a specially-crafted request. By default, only the JBoss Seam openid
example application uses OpenID4Java. (CVE-2011-4314)

Warning: Before applying this update, back up the
"jboss-as/server/[PROFILE]/deploy/" directory and any other customized
configuration files of your JBoss Enterprise Application Platform.

All users of JBoss Enterprise Application Platform 5.1.1 as provided from
the Red Hat Customer Portal are advised to upgrade to JBoss Enterprise
Application Platform 5.1.2.


The References section of this erratum contains a download link (you must
log in to download the update).

Updated packages

Bugs fixed (see bugzilla for more information)

750422 - CVE-2011-4085 Invoker servlets authentication bypass (HTTP verb tampering)
754386 - CVE-2011-4314 openid4java (AX extension): MITM due to improper validation of AX attribute signatures


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