Hash: SHA1

             AUSCERT External Security Bulletin Redistribution

                    ESB-2008.0815 -- [Win][UNIX/Linux]
           Apache Tomcat UTF8 Directory Traversal Vulnerability
                              21 August 2008


        AusCERT Security Bulletin Summary

Product:              Apache Tomcat
Publisher:            US-CERT
Operating System:     UNIX variants (UNIX, Linux, OSX)
Impact:               Read-only Data Access
Access:               Remote/Unauthenticated

Original Bulletin:    http://www.kb.cert.org/vuls/id/343355

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Vulnerability Note VU#343355
Apache Tomcat UTF8 Directory Traversal Vulnerability

Apache Tomcat contains a vulnerability that may allow directory traversal.

I. Description
Apache Tomcat is an implementation of the Java Servlet and JavaServer Page
(JSP) technologies. Apache Tomcat contains a vulnerability in the way
malformed requests are handled. According to the Apache Tomcat 6.x
Vulnerabilities page:

      If a context is configured with allowLinking="true" and the connector
      is configured with URIEncoding="UTF-8" then a malformed request may be
      used to access arbitrary files on the server. 

This vulnerability affects versions 4.1.0-4.1.37, 5.5.0-5.5.26, and

Note that we are aware of publicly-available exploit code for this

II. Impact
A remote attacker could gain access to arbitrary files on the server.

III. Solution
Apply an update

This vulnerability is addressed in Apache Tomcat 4.1.38, 5.5.27, and 6.0.18.
Please check the Apache Tomcat Security page for availability of fixes for
this and other versions of Tomcat.

Systems Affected
Vendor          Status          Date Updated
Apache Tomcat	Vulnerable	19-Aug-2008


This issue was reported by William A. Rowe of Apache.

This document was written by Chris Taschner.
Other Information
Date Public	11/08/2008
Date First Published	19/08/2008 16:28:12
Date Last Updated	19/08/2008
CERT Advisory	 
CVE-ID(s)	CVE-2008-2938
NVD-ID(s)	CVE-2008-2938
US-CERT Technical Alerts	 
Metric	7.14
Document Revision	4

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