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Category:   Application (Web Server/CGI)  >   Red Hat JBoss Vendors:   Red Hat
(Red Hat Issues Fix for JBoss) Tomcat RequestDispatcher Bug Lets Remote Users Bypass Access Restrictions
SecurityTracker Alert ID:  1020908
SecurityTracker URL:  http://securitytracker.com/id/1020908
CVE Reference:   CVE-2008-2370   (Links to External Site)
Date:  Sep 22 2008
Impact:   Disclosure of system information, Disclosure of user information
Fix Available:  Yes  Vendor Confirmed:  Yes  

Description:   A vulnerability was reported in Tomcat. A remote user can bypass certain access restriction. JBoss EAP is affected.

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 JBoss Enterprise Application Platform, which is affected by this vulnerability.

The Red Hat advisory is available at:

https://rhn.redhat.com/errata/RHSA-2008-0877.html

Cause:   Access control error
Underlying OS:  Linux (Red Hat Enterprise)
Underlying OS Comments:  4, 5

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-2008:0877-02] Important: jbossweb security update


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

Synopsis:          Important: jbossweb security update
Advisory ID:       RHSA-2008:0877-02
Product:           JBoss Enterprise Application Platform
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2008-0877.html
Issue date:        2008-09-22
Keywords:          Security
CVE Names:         CVE-2008-2370 CVE-2008-2938 
=====================================================================

1. Summary:

An updated jbossweb package that fixes various security issues is now
available for JBoss Enterprise Application Platform (JBoss EAP) 4.2 and
4.3.

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

2. Relevant releases/architectures:

JBoss Enterprise Application Platform for RHEL 4 AS - noarch
JBoss Enterprise Application Platform 4.3.0 for RHEL 4 AS - noarch
JBoss Enterprise Application Platform for RHEL 4 ES - noarch
JBoss Enterprise Application Platform 4.3.0 for RHEL 4 ES - noarch
JBoss Enterprise Application Platform for RHEL 5 Server - noarch
JBoss Enterprise Application Platform 4.3.0 for RHEL 5 Server - noarch

3. Description:

JBoss Web Server (jbossweb) is an enterprise ready web server designed for
medium and large applications, is based on Apache Tomcat, and is embedded
into JBoss Application Server. It provides organizations with a single
deployment platform for JavaServer Pages (JSP) and Java Servlet
technologies, Microsoft® .NET, PHP, and CGI.

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 jbossweb process. (CVE-2008-2938)

Users of jbossweb should upgrade to this updated package, which contains
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/):

456120 - CVE-2008-2938 tomcat Unicode directory traversal vulnerability
457934 - CVE-2008-2370 tomcat RequestDispatcher information disclosure vulnerability

6. Package List:

JBoss Enterprise Application Platform for RHEL 4 AS:

Source:
ftp://updates.redhat.com/enterprise/4AS/en/JBEAP/SRPMS/jbossweb-2.0.0-5.CP07.0jpp.ep1.1.el4.src.rpm

noarch:
jbossweb-2.0.0-5.CP07.0jpp.ep1.1.el4.noarch.rpm

JBoss Enterprise Application Platform 4.3.0 for RHEL 4 AS:

Source:
ftp://updates.redhat.com/enterprise/4AS/en/JBEAP/SRPMS/jbossweb-2.0.0-5.CP07.0jpp.ep1.1.el4.src.rpm

noarch:
jbossweb-2.0.0-5.CP07.0jpp.ep1.1.el4.noarch.rpm

JBoss Enterprise Application Platform for RHEL 4 ES:

Source:
ftp://updates.redhat.com/enterprise/4ES/en/JBEAP/SRPMS/jbossweb-2.0.0-5.CP07.0jpp.ep1.1.el4.src.rpm

noarch:
jbossweb-2.0.0-5.CP07.0jpp.ep1.1.el4.noarch.rpm

JBoss Enterprise Application Platform 4.3.0 for RHEL 4 ES:

Source:
ftp://updates.redhat.com/enterprise/4ES/en/JBEAP/SRPMS/jbossweb-2.0.0-5.CP07.0jpp.ep1.1.el4.src.rpm

noarch:
jbossweb-2.0.0-5.CP07.0jpp.ep1.1.el4.noarch.rpm

JBoss Enterprise Application Platform for RHEL 5 Server:

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/JBEAP/SRPMS/jbossweb-2.0.0-5.CP07.0jpp.ep1.1.el5.src.rpm

noarch:
jbossweb-2.0.0-5.CP07.0jpp.ep1.1.el5.noarch.rpm

JBoss Enterprise Application Platform 4.3.0 for RHEL 5 Server:

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/JBEAP/SRPMS/jbossweb-2.0.0-5.CP07.0jpp.ep1.1.el5.src.rpm

noarch:
jbossweb-2.0.0-5.CP07.0jpp.ep1.1.el5.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-2008-2370
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-2938
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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