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

Synopsis:          Important: JBoss Data Grid 6.1.0 update
Advisory ID:       RHSA-2013:0665-01
Product:           JBoss Enterprise Middleware
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2013-0665.html
Issue date:        2013-03-20
CVE Names:         CVE-2012-4431 CVE-2012-5629 CVE-2012-5885 
                   CVE-2012-5886 CVE-2012-5887 
=====================================================================

1. Summary:

JBoss Data Grid 6.1.0, which fixes multiple security issues, various bugs,
and adds enhancements, is now available from the Red Hat Customer Portal.

The Red Hat Security Response Team has rated this update as having
important 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.

2. Description:

JBoss Data Grid is a distributed in-memory data grid, based on Infinispan.

This release of JBoss Data Grid 6.1.0 serves as a replacement for JBoss
Data Grid 6.0.1. It includes various bug fixes and enhancements which are
detailed in the JBoss Data Grid 6.1.0 Release Notes. The Release Notes will
be available shortly from https://access.redhat.com/knowledge/docs/

This update also fixes the following security issues:

When using LDAP authentication with either the "ldap" configuration entry
or the provided LDAP login modules (LdapLoginModule/LdapExtLoginModule),
empty passwords were allowed by default. An attacker could use this flaw to
bypass intended authentication by providing an empty password for a valid
username, as the LDAP server may recognize this as an 'unauthenticated
authentication' (RFC 4513). This update sets the allowEmptyPasswords option
for the LDAP login modules to false if the option is not already
configured. (CVE-2012-5629)

Note: If you are using the "ldap" configuration entry and rely on empty
passwords, they will no longer work after applying this update. The
jboss-as-domain-management module, by default, will prevent empty
passwords. This cannot be configured; however, a future release may add a
configuration option to allow empty passwords when using the "ldap"
configuration entry.

It was found that sending a request without a session identifier to a
protected resource could bypass the Cross-Site Request Forgery (CSRF)
prevention filter in JBoss Web. A remote attacker could use this flaw to
perform CSRF attacks against applications that rely on the CSRF prevention
filter and do not contain internal mitigation for CSRF. (CVE-2012-4431)

Multiple weaknesses were found in the JBoss Web DIGEST authentication
implementation, effectively reducing the security normally provided by
DIGEST authentication. A remote attacker could use these flaws to perform
replay attacks in some circumstances. (CVE-2012-5885, CVE-2012-5886,
CVE-2012-5887)

Warning: Before applying this update, back up your existing JBoss Data Grid
installation.

All users of JBoss Data Grid 6.0.1 as provided from the Red Hat Customer
Portal are advised to upgrade to JBoss Data Grid 6.1.0.

3. Solution:

The References section of this erratum contains a download link (you must
log in to download the update). Before applying this update, back up your
existing JBoss Data Grid installation.

4. Bugs fixed (https://bugzilla.redhat.com/):

873664 - CVE-2012-5885 CVE-2012-5886 CVE-2012-5887 tomcat: three DIGEST authentication implementation issues
883636 - CVE-2012-4431 Tomcat/JBoss Web - Bypass of CSRF prevention filter
885569 - CVE-2012-5629 JBoss: allows empty password to authenticate against LDAP

5. References:

https://www.redhat.com/security/data/cve/CVE-2012-4431.html
https://www.redhat.com/security/data/cve/CVE-2012-5629.html
https://www.redhat.com/security/data/cve/CVE-2012-5885.html
https://www.redhat.com/security/data/cve/CVE-2012-5886.html
https://www.redhat.com/security/data/cve/CVE-2012-5887.html
https://access.redhat.com/security/updates/classification/#important
https://tools.ietf.org/html/rfc4513
https://tomcat.apache.org/security-6.html
https://access.redhat.com/jbossnetwork/restricted/listSoftware.html?product=data.grid&downloadType=distributions
https://access.redhat.com/knowledge/docs/

6. Contact:

The Red Hat security contact is <secalert@redhat.com>.  More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2013 Red Hat, Inc.
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