Apache Tomcat UTF8 Directory Traversal Vulnerability

Overview

Apache Tomcat contains a vulnerability that may allow directory traversal.

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 6.0.0-6.0.16.

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

Impact

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

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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.

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Vendor Information

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Apache Tomcat __ Affected

Updated: August 19, 2008

Status

Affected

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

Refer to <http://tomcat.apache.org/security.html&gt; for more information.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23343355 Feedback>).

CVSS Metrics

Group	Score	Vector
Base
Temporal
Environmental

References

<http://tomcat.apache.org/security.html&gt;

Acknowledgements

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

This document was written by Chris Taschner.

Other Information

CVE IDs:	CVE-2008-2938
Severity Metric:	7.14 Date Public: