RHSA-2013:0647 - Security Advisory

Topic

Updated jbossweb packages for JBoss Enterprise Application Platform 6.0.1
that fix multiple security issues are now available for Red Hat Enterprise
Linux 5 and 6.

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

Description

JBoss Web is the web container, based on Apache Tomcat, in JBoss Enterprise
Application Platform. It provides a single deployment platform for the
JavaServer Pages (JSP) and Java Servlet technologies.

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
Enterprise Application Platform installation and deployed applications.

All users of JBoss Enterprise Application Platform 6.0.1 on Red Hat
Enterprise Linux 5 and 6 are advised to upgrade to these updated packages.
The JBoss server process must be restarted for the 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 Application Platform from RHUI 6 x86_64
• JBoss Enterprise Application Platform from RHUI 6 i386
• JBoss Enterprise Application Platform 6.4 for RHEL 6 x86_64
• JBoss Enterprise Application Platform 6.4 for RHEL 6 i386
• JBoss Enterprise Application Platform 6.4 for RHEL 5 x86_64
• JBoss Enterprise Application Platform 6.4 for RHEL 5 i386
• JBoss Enterprise Application Platform 6 for RHEL 6 x86_64
• JBoss Enterprise Application Platform 6 for RHEL 6 i386
• JBoss Enterprise Application Platform 6 for RHEL 5 x86_64
• JBoss Enterprise Application Platform 6 for RHEL 5 i386

Fixes

• BZ - 873664 - CVE-2012-5885 CVE-2012-5886 CVE-2012-5887 tomcat: three DIGEST authentication implementation issues
• BZ - 883636 - CVE-2012-4431 Tomcat/JBoss Web - Bypass of CSRF prevention filter

CVEs

• CVE-2012-4431
• CVE-2012-5885
• CVE-2012-5886
• CVE-2012-5887

References

• https://access.redhat.com/security/updates/classification/#moderate