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AUSCERT External Security Bulletin Redistribution
ESB-2013.0075
Important: tomcat6 security update
15 January 2013
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: tomcat6
Publisher: Red Hat
Operating System: Red Hat Enterprise Linux Server 5
Red Hat Enterprise Linux Server 6
Windows
Solaris
Impact/Access: Unauthorised Access -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2012-3546
Reference: ESB-2013.0068
ESB-2013.0060
ESB-2012.1134
Original Bulletin:
https://rhn.redhat.com/errata/RHSA-2013-0157.html
https://rhn.redhat.com/errata/RHSA-2013-0158.html
Comment: This bulletin contains two (2) Red Hat security advisories.
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Red Hat Security Advisory
Synopsis: Important: tomcat6 security update
Advisory ID: RHSA-2013:0157-01
Product: JBoss Enterprise Web Server
Advisory URL: https://rhn.redhat.com/errata/RHSA-2013-0157.html
Issue date: 2013-01-14
CVE Names: CVE-2012-3546
=====================================================================
1. Summary:
An update for the Apache Tomcat 6 component for JBoss Enterprise Web Server
1.0.2 that fixes one security issue is now available from the Red Hat
Customer Portal.
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. Description:
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).
All users of JBoss Enterprise Web Server 1.0.2 as provided from the Red Hat
Customer Portal are advised to apply this update.
3. Solution:
The References section of this erratum contains a download link (you must
log in to download the update). Before applying the update, back up your
existing JBoss Enterprise Web Server installation (including all
applications and configuration files).
Tomcat must be restarted for this update to take effect.
4. Bugs fixed (http://bugzilla.redhat.com/):
883634 - CVE-2012-3546 Tomcat/JBoss Web: Bypass of security constraints
5. References:
https://www.redhat.com/security/data/cve/CVE-2012-3546.html
https://access.redhat.com/security/updates/classification/#important
http://tomcat.apache.org/security-6.html
https://access.redhat.com/jbossnetwork/restricted/listSoftware.html?product=webserver&downloadType=securityPatches&version=1.0.2
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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Red Hat Security Advisory
Synopsis: Important: tomcat6 security update
Advisory ID: RHSA-2013:0158-01
Product: JBoss Enterprise Web Server
Advisory URL: https://rhn.redhat.com/errata/RHSA-2013-0158.html
Issue date: 2013-01-14
CVE Names: CVE-2012-3546
=====================================================================
1. Summary:
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.
2. Relevant releases/architectures:
JBoss Enterprise Web Server 1.0 for RHEL 5 Server - noarch
JBoss Enterprise Web Server 1.0 for RHEL 6 Server - noarch
3. Description:
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.
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/knowledge/articles/11258
5. Bugs fixed (http://bugzilla.redhat.com/):
883634 - CVE-2012-3546 Tomcat/JBoss Web: Bypass of security constraints
6. Package List:
JBoss Enterprise Web Server 1.0 for RHEL 5 Server:
Source:
tomcat6-6.0.32-28_patch_08.ep5.el5.src.rpm
noarch:
tomcat6-6.0.32-28_patch_08.ep5.el5.noarch.rpm
tomcat6-admin-webapps-6.0.32-28_patch_08.ep5.el5.noarch.rpm
tomcat6-docs-webapp-6.0.32-28_patch_08.ep5.el5.noarch.rpm
tomcat6-el-1.0-api-6.0.32-28_patch_08.ep5.el5.noarch.rpm
tomcat6-javadoc-6.0.32-28_patch_08.ep5.el5.noarch.rpm
tomcat6-jsp-2.1-api-6.0.32-28_patch_08.ep5.el5.noarch.rpm
tomcat6-lib-6.0.32-28_patch_08.ep5.el5.noarch.rpm
tomcat6-log4j-6.0.32-28_patch_08.ep5.el5.noarch.rpm
tomcat6-servlet-2.5-api-6.0.32-28_patch_08.ep5.el5.noarch.rpm
tomcat6-webapps-6.0.32-28_patch_08.ep5.el5.noarch.rpm
JBoss Enterprise Web Server 1.0 for RHEL 6 Server:
Source:
tomcat6-6.0.32-31_patch_08.ep5.el6.src.rpm
noarch:
tomcat6-6.0.32-31_patch_08.ep5.el6.noarch.rpm
tomcat6-admin-webapps-6.0.32-31_patch_08.ep5.el6.noarch.rpm
tomcat6-docs-webapp-6.0.32-31_patch_08.ep5.el6.noarch.rpm
tomcat6-el-1.0-api-6.0.32-31_patch_08.ep5.el6.noarch.rpm
tomcat6-javadoc-6.0.32-31_patch_08.ep5.el6.noarch.rpm
tomcat6-jsp-2.1-api-6.0.32-31_patch_08.ep5.el6.noarch.rpm
tomcat6-lib-6.0.32-31_patch_08.ep5.el6.noarch.rpm
tomcat6-log4j-6.0.32-31_patch_08.ep5.el6.noarch.rpm
tomcat6-servlet-2.5-api-6.0.32-31_patch_08.ep5.el6.noarch.rpm
tomcat6-webapps-6.0.32-31_patch_08.ep5.el6.noarch.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-2012-3546.html
https://access.redhat.com/security/updates/classification/#important
http://tomcat.apache.org/security-6.html
8. 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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