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Category:   Application (Web Server/CGI)  >   Apache Tomcat Vendors:   Apache Software Foundation
(Red Hat Issues Fix) Tomcat RequestDispatcher Bug Lets Remote Users Bypass Access Restrictions
SecurityTracker Alert ID:  1020982
SecurityTracker URL:  http://securitytracker.com/id/1020982
CVE Reference:   CVE-2008-2370   (Links to External Site)
Date:  Oct 3 2008
Impact:   Disclosure of system information, Disclosure of user information
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 4.1.0 to 4.1.37, 5.5.0 to 5.5.26, 6.0.0 to 6.0.16
Description:   A vulnerability was reported in Tomcat. A remote user can bypass certain access restriction.

When a RequestDispatcher is used, a remote user can submit a specially crafted request to access content that is ostensibly protected by a security constraint or by its location under the WEB-INF directory.

Stefano Di Paola of Minded Security Research Labs reported this vulnerability.

Impact:   A remote user can bypass certain security restrictions to access content that is ostensibly protected.
Solution:   Red Hat has released a fix for Red Hat Developer Suite.

The Red Hat advisory is available at:

https://rhn.redhat.com/errata/RHSA-2008-0864.html

Vendor URL:  tomcat.apache.org/security.html (Links to External Site)
Cause:   Access control error
Underlying OS:  Linux (Red Hat Enterprise)
Underlying OS Comments:  4

Message History:   This archive entry is a follow-up to the message listed below.
Aug 4 2008 Tomcat RequestDispatcher Bug Lets Remote Users Bypass Access Restrictions



 Source Message Contents

Subject:  [RHSA-2008:0864-02] Important: tomcat security update


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=====================================================================
                   Red Hat Security Advisory

Synopsis:          Important: tomcat security update
Advisory ID:       RHSA-2008:0864-02
Product:           Red Hat Developer Suite v.3
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2008-0864.html
Issue date:        2008-10-02
Keywords:          Security
CVE Names:         CVE-2008-1232 CVE-2008-1947 CVE-2008-2370 
                   CVE-2008-2938 
=====================================================================

1. Summary:

Updated tomcat packages that fix multiple security issues are now available
for Red Hat Developer Suite 3.

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

2. Relevant releases/architectures:

Red Hat Developer Suite v.3 (AS v.4) - noarch

3. Description:

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

A cross-site scripting vulnerability was discovered in the
HttpServletResponse.sendError() method. A remote attacker could inject
arbitrary web script or HTML via forged HTTP headers. (CVE-2008-1232)

An additional cross-site scripting vulnerability was discovered in the host
manager application. A remote attacker could inject arbitrary web script or
HTML via the hostname parameter. (CVE-2008-1947)

A traversal vulnerability was discovered when using a RequestDispatcher
in combination with a servlet or JSP. A remote attacker could utilize a
specially-crafted request parameter to access protected web resources.
(CVE-2008-2370)

An additional traversal vulnerability was discovered when the
"allowLinking" and "URIencoding" settings were activated. A remote attacker
could use a UTF-8-encoded request to extend their privileges and obtain
local files accessible to the Tomcat process. (CVE-2008-2938)

Users of tomcat should upgrade to these updated packages, which contain
backported patches to resolve these issues.

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/FAQ_58_10188

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

446393 - CVE-2008-1947 Tomcat host manager xss - name field
456120 - CVE-2008-2938 tomcat Unicode directory traversal vulnerability
457597 - CVE-2008-1232 tomcat: Cross-Site-Scripting enabled by sendError call
457934 - CVE-2008-2370 tomcat RequestDispatcher information disclosure vulnerability

6. Package List:

Red Hat Developer Suite v.3 (AS v.4):

Source:
ftp://updates.redhat.com/enterprise/4AS/en/RHDS3/SRPMS/tomcat5-5.5.23-0jpp_12rh.src.rpm

noarch:
tomcat5-5.5.23-0jpp_12rh.noarch.rpm
tomcat5-common-lib-5.5.23-0jpp_12rh.noarch.rpm
tomcat5-jasper-5.5.23-0jpp_12rh.noarch.rpm
tomcat5-jsp-2.0-api-5.5.23-0jpp_12rh.noarch.rpm
tomcat5-server-lib-5.5.23-0jpp_12rh.noarch.rpm
tomcat5-servlet-2.4-api-5.5.23-0jpp_12rh.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-2008-1232
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1947
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-2370
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-2938
http://tomcat.apache.org/security-5.html
http://www.redhat.com/security/updates/classification/#important

8. Contact:

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

Copyright 2008 Red Hat, Inc.
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