[RHSA-2009:1616-01] Low: tomcat security update for Red Hat Network Satellite Server

Mon Nov 30 15:42:27 UTC 2009

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                   Red Hat Security Advisory

Synopsis:          Low: tomcat security update for Red Hat Network Satellite Server
Advisory ID:       RHSA-2009:1616-01
Product:           Red Hat Network Satellite Server
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2009-1616.html
Issue date:        2009-11-30
CVE Names:         CVE-2007-5333 CVE-2008-5515 CVE-2009-0033 
                   CVE-2009-0580 CVE-2009-0783 
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1. Summary:

Updated tomcat packages that fix several security issues are now available
for Red Hat Network Satellite Server 5.2 and 5.3.

This update has been rated as having low security impact by the Red Hat
Security Response Team.

2. Relevant releases/architectures:

4AS-RHNSAT5.3 - noarch
Red Hat Network Satellite Server 5.2 (RHEL v.4 AS) - noarch

3. Description:

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

This update corrects several security vulnerabilities in the Tomcat
component shipped as part of Red Hat Network Satellite Server. In a typical
operating environment, Tomcat is not exposed to users of Satellite Server
in a vulnerable manner: By default, only Satellite Server applications are
running on Tomcat. This update will reduce risk in unique Satellite Server
environments.

It was discovered that the Red Hat Security Advisory RHSA-2007:1069 did not
address all possible flaws in the way Tomcat handles certain characters and
character sequences in cookie values. A remote attacker could use this flaw
to obtain sensitive information, such as session IDs, and then use this
information for session hijacking attacks. (CVE-2007-5333)

Note: The fix for the CVE-2007-5333 flaw changes the default cookie
processing behavior: With this update, version 0 cookies that contain
values that must be quoted to be valid are automatically changed to version
1 cookies. To reactivate the previous, but insecure behavior, add the
following entry to the "/etc/tomcat5/catalina.properties" file:

org.apache.tomcat.util.http.ServerCookie.VERSION_SWITCH=false

It was discovered that request dispatchers did not properly normalize user
requests that have trailing query strings, allowing remote attackers to
send specially-crafted requests that would cause an information leak.
(CVE-2008-5515)

A flaw was found in the way the Tomcat AJP (Apache JServ Protocol)
connector processes AJP connections. An attacker could use this flaw to
send specially-crafted requests that would cause a temporary denial of
service. (CVE-2009-0033)

It was discovered that the error checking methods of certain authentication
classes did not have sufficient error checking, allowing remote attackers
to enumerate (via brute force methods) usernames registered with
applications running on Tomcat when FORM-based authentication was used.
(CVE-2009-0580)

It was discovered that web applications containing their own XML parsers
could replace the XML parser Tomcat uses to parse configuration files. A
malicious web application running on a Tomcat instance could read or,
potentially, modify the configuration and XML-based data of other web
applications deployed on the same Tomcat instance. (CVE-2009-0783)

Users of Red Hat Network Satellite Server 5.2 and 5.3 are advised to
upgrade to these updated tomcat packages, which contain backported patches
to resolve these issues. Tomcat must be restarted for this update to take
effect.

4. Solution:

Before applying this update, make sure that all previously-released
errata relevant to your system have been applied.

This update is available via Red Hat Network.  Details on how to use
the Red Hat Network to apply this update are available at
http://kbase.redhat.com/faq/docs/DOC-11259

5. Bugs fixed (http://bugzilla.redhat.com/):

427766 - CVE-2007-5333 Improve cookie parsing for tomcat5
493381 - CVE-2009-0033 tomcat6 Denial-Of-Service with AJP connection
503978 - CVE-2009-0580 tomcat6 Information disclosure in authentication classes
504153 - CVE-2009-0783 tomcat XML parser information disclosure
504753 - CVE-2008-5515 tomcat request dispatcher information disclosure vulnerability

6. Package List:

Red Hat Network Satellite Server 5.2 (RHEL v.4 AS):

Source:
tomcat5-5.5.23-0jpp_18rh.src.rpm

noarch:
tomcat5-5.5.23-0jpp_18rh.noarch.rpm
tomcat5-common-lib-5.5.23-0jpp_18rh.noarch.rpm
tomcat5-jasper-5.5.23-0jpp_18rh.noarch.rpm
tomcat5-jsp-2.0-api-5.5.23-0jpp_18rh.noarch.rpm
tomcat5-server-lib-5.5.23-0jpp_18rh.noarch.rpm
tomcat5-servlet-2.4-api-5.5.23-0jpp_18rh.noarch.rpm

4AS-RHNSAT5.3:

Source:
tomcat5-5.5.23-0jpp_18rh.src.rpm

noarch:
tomcat5-5.5.23-0jpp_18rh.noarch.rpm
tomcat5-common-lib-5.5.23-0jpp_18rh.noarch.rpm
tomcat5-jasper-5.5.23-0jpp_18rh.noarch.rpm
tomcat5-jsp-2.0-api-5.5.23-0jpp_18rh.noarch.rpm
tomcat5-server-lib-5.5.23-0jpp_18rh.noarch.rpm
tomcat5-servlet-2.4-api-5.5.23-0jpp_18rh.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://www.redhat.com/security/team/key/#package

7. References:

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5333
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-5515
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0033
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0580
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0783
http://tomcat.apache.org/security-5.html
http://www.redhat.com/security/updates/classification/#low

8. Contact:

The Red Hat security contact is <secalert at redhat.com>.  More contact
details at https://www.redhat.com/security/team/contact/

Copyright 2009 Red Hat, Inc.
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