Exploit the possiblities

Red Hat Security Advisory 2013-0872-01

Red Hat Security Advisory 2013-0872-01
Posted May 28, 2013
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2013-0872-01 - Apache Tomcat is a servlet container for the Java Servlet and JavaServer Pages technologies. A flaw was found in the way the tomcat5 and tomcat6 init scripts handled the tomcat5-initd.log and tomcat6-initd.log log files. A malicious web application deployed on Tomcat could use this flaw to perform a symbolic link attack to change the ownership of an arbitrary system file to that of the tomcat user, allowing them to escalate their privileges to root. Note: With this update, tomcat5-initd.log and tomcat6-initd.log have been moved to the /var/log/ directory.

tags | advisory, java, web, arbitrary, root
systems | linux, redhat
advisories | CVE-2013-1976
MD5 | ed94598d55938f4170e41c47228913f2

Red Hat Security Advisory 2013-0872-01

Change Mirror Download
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=====================================================================
Red Hat Security Advisory

Synopsis: Important: tomcat5 and tomcat6 security update
Advisory ID: RHSA-2013:0872-01
Product: JBoss Enterprise Web Server
Advisory URL: https://rhn.redhat.com/errata/RHSA-2013-0872.html
Issue date: 2013-05-28
CVE Names: CVE-2013-1976
=====================================================================

1. Summary:

Updated tomcat5 and 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 for the Java Servlet and JavaServer
Pages (JSP) technologies.

A flaw was found in the way the tomcat5 and tomcat6 init scripts handled
the tomcat5-initd.log and tomcat6-initd.log log files. A malicious web
application deployed on Tomcat could use this flaw to perform a symbolic
link attack to change the ownership of an arbitrary system file to that of
the tomcat user, allowing them to escalate their privileges to root.
(CVE-2013-1976)

Note: With this update, tomcat5-initd.log and tomcat6-initd.log have been
moved to the /var/log/ directory.

Red Hat would like to thank Simon Fayer of Imperial College London for
reporting this issue.

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/):

927622 - CVE-2013-1976 tomcat: Improper TOMCAT_LOG management in init script (DoS, ACE)

6. Package List:

JBoss Enterprise Web Server 1.0 for RHEL 5 Server:

Source:
tomcat5-5.5.33-33_patch_09.ep5.el5.src.rpm
tomcat6-6.0.32-32_patch_09.ep5.el5.src.rpm

noarch:
tomcat5-5.5.33-33_patch_09.ep5.el5.noarch.rpm
tomcat5-admin-webapps-5.5.33-33_patch_09.ep5.el5.noarch.rpm
tomcat5-common-lib-5.5.33-33_patch_09.ep5.el5.noarch.rpm
tomcat5-jasper-5.5.33-33_patch_09.ep5.el5.noarch.rpm
tomcat5-jasper-eclipse-5.5.33-33_patch_09.ep5.el5.noarch.rpm
tomcat5-jasper-javadoc-5.5.33-33_patch_09.ep5.el5.noarch.rpm
tomcat5-jsp-2.0-api-5.5.33-33_patch_09.ep5.el5.noarch.rpm
tomcat5-jsp-2.0-api-javadoc-5.5.33-33_patch_09.ep5.el5.noarch.rpm
tomcat5-parent-5.5.33-33_patch_09.ep5.el5.noarch.rpm
tomcat5-server-lib-5.5.33-33_patch_09.ep5.el5.noarch.rpm
tomcat5-servlet-2.4-api-5.5.33-33_patch_09.ep5.el5.noarch.rpm
tomcat5-servlet-2.4-api-javadoc-5.5.33-33_patch_09.ep5.el5.noarch.rpm
tomcat5-webapps-5.5.33-33_patch_09.ep5.el5.noarch.rpm
tomcat6-6.0.32-32_patch_09.ep5.el5.noarch.rpm
tomcat6-admin-webapps-6.0.32-32_patch_09.ep5.el5.noarch.rpm
tomcat6-docs-webapp-6.0.32-32_patch_09.ep5.el5.noarch.rpm
tomcat6-el-1.0-api-6.0.32-32_patch_09.ep5.el5.noarch.rpm
tomcat6-javadoc-6.0.32-32_patch_09.ep5.el5.noarch.rpm
tomcat6-jsp-2.1-api-6.0.32-32_patch_09.ep5.el5.noarch.rpm
tomcat6-lib-6.0.32-32_patch_09.ep5.el5.noarch.rpm
tomcat6-log4j-6.0.32-32_patch_09.ep5.el5.noarch.rpm
tomcat6-servlet-2.5-api-6.0.32-32_patch_09.ep5.el5.noarch.rpm
tomcat6-webapps-6.0.32-32_patch_09.ep5.el5.noarch.rpm

JBoss Enterprise Web Server 1.0 for RHEL 6 Server:

Source:
tomcat5-5.5.33-36_patch_09.ep5.el6.src.rpm
tomcat6-6.0.32-35_patch_09.ep5.el6.src.rpm

noarch:
tomcat5-5.5.33-36_patch_09.ep5.el6.noarch.rpm
tomcat5-admin-webapps-5.5.33-36_patch_09.ep5.el6.noarch.rpm
tomcat5-common-lib-5.5.33-36_patch_09.ep5.el6.noarch.rpm
tomcat5-jasper-5.5.33-36_patch_09.ep5.el6.noarch.rpm
tomcat5-jasper-eclipse-5.5.33-36_patch_09.ep5.el6.noarch.rpm
tomcat5-jasper-javadoc-5.5.33-36_patch_09.ep5.el6.noarch.rpm
tomcat5-jsp-2.0-api-5.5.33-36_patch_09.ep5.el6.noarch.rpm
tomcat5-jsp-2.0-api-javadoc-5.5.33-36_patch_09.ep5.el6.noarch.rpm
tomcat5-parent-5.5.33-36_patch_09.ep5.el6.noarch.rpm
tomcat5-server-lib-5.5.33-36_patch_09.ep5.el6.noarch.rpm
tomcat5-servlet-2.4-api-5.5.33-36_patch_09.ep5.el6.noarch.rpm
tomcat5-servlet-2.4-api-javadoc-5.5.33-36_patch_09.ep5.el6.noarch.rpm
tomcat5-webapps-5.5.33-36_patch_09.ep5.el6.noarch.rpm
tomcat6-6.0.32-35_patch_09.ep5.el6.noarch.rpm
tomcat6-admin-webapps-6.0.32-35_patch_09.ep5.el6.noarch.rpm
tomcat6-docs-webapp-6.0.32-35_patch_09.ep5.el6.noarch.rpm
tomcat6-el-1.0-api-6.0.32-35_patch_09.ep5.el6.noarch.rpm
tomcat6-javadoc-6.0.32-35_patch_09.ep5.el6.noarch.rpm
tomcat6-jsp-2.1-api-6.0.32-35_patch_09.ep5.el6.noarch.rpm
tomcat6-lib-6.0.32-35_patch_09.ep5.el6.noarch.rpm
tomcat6-log4j-6.0.32-35_patch_09.ep5.el6.noarch.rpm
tomcat6-servlet-2.5-api-6.0.32-35_patch_09.ep5.el6.noarch.rpm
tomcat6-webapps-6.0.32-35_patch_09.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-2013-1976.html
https://access.redhat.com/security/updates/classification/#important

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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