-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Important: mod_cluster-native security update Advisory ID: RHSA-2012:0039-01 Product: JBoss Enterprise Web Platform Advisory URL: https://rhn.redhat.com/errata/RHSA-2012-0039.html Issue date: 2012-01-18 CVE Names: CVE-2011-4608 ===================================================================== 1. Summary: An updated mod_cluster-native package that fixes one security issue is now available for JBoss Enterprise Web Platform 5.1.2 for Red Hat Enterprise Linux 4, 5, and 6. 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. 2. Relevant releases/architectures: JBoss Enterprise Web Platform 5 for RHEL 4 AS - i386, x86_64 JBoss Enterprise Web Platform 5 for RHEL 4 ES - i386, x86_64 JBoss Enterprise Web Platform 5 for RHEL 5 Server - i386, x86_64 JBoss Enterprise Web Platform 5 for RHEL 6 Server - i386, x86_64 3. Description: mod_cluster-native provides a native build of mod_cluster for the Apache HTTP Server (httpd). mod_cluster is an httpd-based load balancer. Like mod_jk, it uses a communication channel to forward requests from httpd to an application server node. It was found that mod_cluster allowed worker nodes to register on any virtual host (vhost), regardless of the security constraints applied to other vhosts. In a typical environment, there will be one vhost configured internally for worker nodes, and another configured externally for serving content. A remote attacker could use this flaw to register an attacker-controlled worker node via an external vhost that is not configured to apply security constraints, then use that worker node to serve malicious content, intercept credentials, and hijack user sessions. (CVE-2011-4608) Users of mod_cluster-native should upgrade to this updated package, which contains a backported patch to resolve this issue. Refer to the Solution section for installation instructions. 4. 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/kb/docs/DOC-11259 To apply this update: 1) Install the updated mod_cluster-native package on the JBoss Enterprise Web Platform worker node. 2) Copy the Apache HTTP Server modules provided by the updated package to your JBoss Enterprise Web Server front-end. 3) Restart the Apache HTTP Server on your JBoss Enterprise Web Server front-end. Refer to the "Install proxy server components" section of the HTTP Connectors Load Balancing Guide for JBoss Enterprise Application Platform 5, available from docs.redhat.com, for further information (JBoss Enterprise Web Platform is a subset of JBoss Enterprise Application Platform). 5. Bugs fixed (http://bugzilla.redhat.com/): 767020 - CVE-2011-4608 mod_cluster: malicious worker nodes can register on any vhost 6. Package List: JBoss Enterprise Web Platform 5 for RHEL 4 AS: Source: mod_cluster-native-1.0.10-4.GA_CP02.ep5.el4.src.rpm i386: mod_cluster-native-1.0.10-4.GA_CP02.ep5.el4.i386.rpm mod_cluster-native-debuginfo-1.0.10-4.GA_CP02.ep5.el4.i386.rpm x86_64: mod_cluster-native-1.0.10-4.GA_CP02.ep5.el4.x86_64.rpm mod_cluster-native-debuginfo-1.0.10-4.GA_CP02.ep5.el4.x86_64.rpm JBoss Enterprise Web Platform 5 for RHEL 4 ES: Source: mod_cluster-native-1.0.10-4.GA_CP02.ep5.el4.src.rpm i386: mod_cluster-native-1.0.10-4.GA_CP02.ep5.el4.i386.rpm mod_cluster-native-debuginfo-1.0.10-4.GA_CP02.ep5.el4.i386.rpm x86_64: mod_cluster-native-1.0.10-4.GA_CP02.ep5.el4.x86_64.rpm mod_cluster-native-debuginfo-1.0.10-4.GA_CP02.ep5.el4.x86_64.rpm JBoss Enterprise Web Platform 5 for RHEL 5 Server: Source: mod_cluster-native-1.0.10-4.1.GA_CP02.ep5.el5.src.rpm i386: mod_cluster-native-1.0.10-4.1.GA_CP02.ep5.el5.i386.rpm mod_cluster-native-debuginfo-1.0.10-4.1.GA_CP02.ep5.el5.i386.rpm x86_64: mod_cluster-native-1.0.10-4.1.GA_CP02.ep5.el5.x86_64.rpm mod_cluster-native-debuginfo-1.0.10-4.1.GA_CP02.ep5.el5.x86_64.rpm JBoss Enterprise Web Platform 5 for RHEL 6 Server: Source: mod_cluster-native-1.0.10-4.1.1.GA_CP02.ep5.el6.src.rpm i386: mod_cluster-native-1.0.10-4.1.1.GA_CP02.ep5.el6.i386.rpm mod_cluster-native-debuginfo-1.0.10-4.1.1.GA_CP02.ep5.el6.i386.rpm x86_64: mod_cluster-native-1.0.10-4.1.1.GA_CP02.ep5.el6.x86_64.rpm mod_cluster-native-debuginfo-1.0.10-4.1.1.GA_CP02.ep5.el6.x86_64.rpm These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/#package 7. References: https://www.redhat.com/security/data/cve/CVE-2011-4608.html https://access.redhat.com/security/updates/classification/#important http://docs.redhat.com/docs/en-US/index.html 8. Contact: The Red Hat security contact is . More contact details at https://access.redhat.com/security/team/contact/ Copyright 2012 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.4 (GNU/Linux) iD8DBQFPFx5oXlSAg2UNWIIRAp9zAJ9JbrdaPNTjQ/CGUthJmnrIFgiWrgCgoGbh 1StHndCzneZTC2LRf3wGYqw= =zxH2 -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce