Red Hat Security Advisory: tomcat6 security update Security Advisory secalert@redhat.com Red Hat Security Response Team RHSA-2013:0158 Final 1 1 2013-01-14T20:43:00Z Current version 2013-01-14T20:43:00Z 2013-01-14T20:43:00Z Red Hat rhsa-to-cvrf 1.0.1484 2013-01-30T13:03:43Z Updated tomcat6 packages that fix one security issue are now available for JBoss Enterprise Web Server 1.0.2 for Red Hat Enterprise Linux 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. Apache Tomcat is a servlet container. It was found that when an application used FORM authentication, along with another component that calls request.setUserPrincipal() before the call to FormAuthenticator#authenticate() (such as the Single-Sign-On valve), it was possible to bypass the security constraint checks in the FORM authenticator by appending "/j_security_check" to the end of a URL. A remote attacker with an authenticated session on an affected application could use this flaw to circumvent authorization controls, and thereby access resources not permitted by the roles associated with their authenticated session. (CVE-2012-3546) Warning: Before applying the update, back up your existing JBoss Enterprise Web Server installation (including all applications and configuration files). Users of Tomcat should upgrade to these updated packages, which resolve this issue. Tomcat must be restarted for this update to take effect. Please see https://www.redhat.com/footer/terms-of-use.html Copyright © 2013 Red Hat, Inc. All rights reserved. Important https://rhn.redhat.com/errata/RHSA-2013-0158.html https://rhn.redhat.com/errata/RHSA-2013-0158.html https://access.redhat.com/security/updates/classification/#important https://access.redhat.com/security/updates/classification/#important http://tomcat.apache.org/security-6.html http://tomcat.apache.org/security-6.html JBoss Enterprise Web Server 1.0 for RHEL 5 Server JBoss Enterprise Web Server 1.0 for RHEL 6 Server tomcat6-6.0.32-28_patch_08.ep5.el5.src.rpm tomcat6-6.0.32-31_patch_08.ep5.el6.src.rpm tomcat6-6.0.32-28_patch_08.ep5.el5 as a component of JBoss Enterprise Web Server 1.0 for RHEL 5 Server tomcat6-6.0.32-31_patch_08.ep5.el6 as a component of JBoss Enterprise Web Server 1.0 for RHEL 6 Server It was found that when an application used FORM authentication, along with another component that calls request.setUserPrincipal() before the call to FormAuthenticator#authenticate() (such as the Single-Sign-On valve), it was possible to bypass the security constraint checks in the FORM authenticator by appending "/j_security_check" to the end of a URL. A remote attacker with an authenticated session on an affected application could use this flaw to circumvent authorization controls, and thereby access resources not permitted by the roles associated with their authenticated session. 2012-12-05T00:00:00Z 2012-12-04T00:00:00Z CVE-2012-3546 5Server-JBEWS-5.0.0:tomcat6-6.0.32-28_patch_08.ep5.el5 6Server-JBEWS-1:tomcat6-6.0.32-31_patch_08.ep5.el6 Important 5.5 AV:N/AC:L/Au:S/C:P/I:P/A:N 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 https://rhn.redhat.com/errata/RHSA-2013-0158.html https://www.redhat.com/security/data/cve/CVE-2012-3546.html CVE-2012-3546 https://bugzilla.redhat.com/show_bug.cgi?id=883634 bz#883634: CVE-2012-3546 Tomcat/JBoss Web: Bypass of security constraints