RHEL 4 / 5 : jboss-seam2 (RHSA-2011:0950)
Medium Nessus Plugin ID 63991
SynopsisThe remote Red Hat host is missing one or more security updates.
DescriptionUpdated jboss-seam2 packages that fix one security issue are now available for JBoss Enterprise Application Platform 4.3 for Red Hat Enterprise Linux 4 and 5.
The Red Hat Security Response Team has rated this update as having important 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.
The JBoss Seam 2 framework is an application framework for building web applications in Java.
It was found that the fix for CVE-2011-1484 was incomplete: JBoss Seam 2 did not block access to all malicious JBoss Expression Language (EL) constructs in page exception handling, allowing arbitrary Java methods to be executed. A remote attacker could use this flaw to execute arbitrary code via a specially crafted URL provided to certain applications based on the JBoss Seam 2 framework. Note: A properly configured and enabled Java Security Manager would prevent exploitation of this flaw. (CVE-2011-2196)
Red Hat would like to thank the ObjectWorks+ Development Team at Nomura Research Institute for reporting this issue.
Users of jboss-seam2 should upgrade to these updated packages, which correct this issue. Manual action is required for this update to take effect. Refer to the Solution section for details.
SolutionUpdate the affected jboss-seam2 and / or jboss-seam2-docs packages.