RHSA-2011:1845 - Security Advisory

Topic

Updated tomcat5 packages that fix multiple security issues are now
available for Red Hat Enterprise Linux 5.

The Red Hat Security Response Team has rated this update as having moderate
security impact. Common Vulnerability Scoring System (CVSS) base scores,
which give detailed severity ratings, are available for each vulnerability
from the CVE links in the References section.

Description

Apache Tomcat is a servlet container for the Java Servlet and JavaServer
Pages (JSP) technologies.

It was found that web applications could modify the location of the Tomcat
host's work directory. As web applications deployed on Tomcat have read and
write access to this directory, a malicious web application could use this
flaw to trick Tomcat into giving it read and write access to an arbitrary
directory on the file system. (CVE-2010-3718)

A cross-site scripting (XSS) flaw was found in the Manager application,
used for managing web applications on Apache Tomcat. A malicious web
application could use this flaw to conduct an XSS attack, leading to
arbitrary web script execution with the privileges of victims who are
logged into and viewing Manager application web pages. (CVE-2011-0013)

Multiple flaws were found in the way Tomcat handled HTTP DIGEST
authentication. These flaws weakened the Tomcat HTTP DIGEST authentication
implementation, subjecting it to some of the weaknesses of HTTP BASIC
authentication, for example, allowing remote attackers to perform session
replay attacks. (CVE-2011-1184)

A flaw was found in the Tomcat MemoryUserDatabase. If a runtime exception
occurred when creating a new user with a JMX client, that user's password
was logged to Tomcat log files. Note: By default, only administrators have
access to such log files. (CVE-2011-2204)

Users of Tomcat should upgrade to these updated packages, which contain
backported patches to correct these issues. Tomcat must be restarted for
this update to take effect.

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

Affected Products

• Red Hat Enterprise Linux Server 5 x86_64
• Red Hat Enterprise Linux Server 5 ia64
• Red Hat Enterprise Linux Server 5 i386
• Red Hat Enterprise Linux Workstation 5 x86_64
• Red Hat Enterprise Linux Workstation 5 i386
• Red Hat Enterprise Linux Desktop 5 x86_64
• Red Hat Enterprise Linux Desktop 5 i386
• Red Hat Enterprise Linux for IBM z Systems 5 s390x
• Red Hat Enterprise Linux for Power, big endian 5 ppc
• Red Hat Enterprise Linux Server from RHUI 5 x86_64
• Red Hat Enterprise Linux Server from RHUI 5 i386

Fixes

• BZ - 675786 - CVE-2011-0013 tomcat: XSS vulnerability in HTML Manager interface
• BZ - 675792 - CVE-2010-3718 tomcat: file permission bypass flaw
• BZ - 717013 - CVE-2011-2204 tomcat: password disclosure vulnerability
• BZ - 741401 - CVE-2011-1184 tomcat: Multiple weaknesses in HTTP DIGEST authentication

CVEs

• CVE-2010-3718
• CVE-2011-0013
• CVE-2011-1184
• CVE-2011-2204
• CVE-2011-5062
• CVE-2011-5063
• CVE-2011-5064

References

• https://access.redhat.com/security/updates/classification/#moderate
• http://tomcat.apache.org/security-5.html