Vulnerability Note VU#553235

Overview

The Jetty web server contains a vulnerability that may allow an attacker to access private files or directories.

Description

Jetty is a web server that is implemented in Java. Jetty contains a vulnerability in the way it processes URLs with multiple "/" (slash) characters. See the Jetty Double slash problem bug report for more information.

Impact

A remote unauthenticated attacker may be able view hidden or private files and directories.

Solution

Upgrade Jetty version 6.1.7 has been released to address this issue.

Filter URLs Until updates can be applied, administrators may be able to use an application firewall or reverse proxy server to filter "//" characters in URLs.

Systems Affected (Learn More)

Vendor	Status	Date Notified	Date Updated
Mort Bay	Affected	-	03 Jan 2008

If you are a vendor and your product is affected, let us know.

CVSS Metrics (Learn More)

Group	Score	Vector
Base	N/A	N/A
Temporal	N/A	N/A
Environmental	N/A	N/A

References

• http://jira.codehaus.org/browse/JETTY-386#action_117699
• http://jira.codehaus.org/browse/JETTY/fixforversion/13950
• http://www.visolve.com/squid/squid24s1/access_controls.php
• http://httpd.apache.org/docs/1.3/mod/mod_proxy.html
• http://secunia.com/advisories/28322/

Credit

Thanks to Greg Wilkins for reporting this vulnerability and for providing information that was used in this report.

This document was written by Ryan Giobbi.

Other Information

• CVE IDs: CVE-2007-6672
• Date Public: 28 Dec 2007
• Date First Published: 03 Jan 2008
• Date Last Updated: 23 Jan 2008
• Severity Metric: 2.64
• Document Revision: 19