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Red Hat Security Advisory 2012-1014-01

Red Hat Security Advisory 2012-1014-01
Posted Jun 20, 2012
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2012-1014-01 - The Java Authorization Contract for Containers specification defines Permission classes and the binding of container access decisions to operations on instances of these permission classes. JaccAuthorizationRealm performs authorization based on Java ACC permissions and a Policy implementation. When a JBoss server is configured to use JaccAuthorizationRealm, the WebPermissionMapping class creates permissions that are not checked and can permit access to users without checking their roles. If the ignoreBaseDecision property is set to true on JBossWebRealm, the web authorization process is handled exclusively by JBossAuthorizationEngine, without any input from JBoss Web. This allows any valid user to access an application, without needing to be assigned the role specified in the application's web.xml "security-constraint" tag.

tags | advisory, java, web
systems | linux, redhat
advisories | CVE-2012-1167
MD5 | 2d5881733454795f1513ba5093dc4b01

Red Hat Security Advisory 2012-1014-01

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

Synopsis: Moderate: jbossas security update
Advisory ID: RHSA-2012:1014-01
Product: JBoss Enterprise Web Platform
Advisory URL: https://rhn.redhat.com/errata/RHSA-2012-1014.html
Issue date: 2012-06-19
CVE Names: CVE-2012-1167
=====================================================================

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:

The Java Authorization Contract for Containers (Java ACC) specification
defines Permission classes and the binding of container access decisions to
operations on instances of these permission classes. JaccAuthorizationRealm
performs authorization based on Java ACC permissions and a Policy
implementation.

When a JBoss server is configured to use JaccAuthorizationRealm, the
WebPermissionMapping class creates permissions that are not checked and can
permit access to users without checking their roles. If the
ignoreBaseDecision property is set to true on JBossWebRealm, the web
authorization process is handled exclusively by JBossAuthorizationEngine,
without any input from JBoss Web. This allows any valid user to access an
application, without needing to be assigned the role specified in the
application's web.xml "security-constraint" tag. (CVE-2012-1167)

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/):

802622 - CVE-2012-1167 JBoss: authentication bypass when running under JACC with ignoreBaseDecision on JBossWebRealm

5. References:

https://www.redhat.com/security/data/cve/CVE-2012-1167.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

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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