[NT] Lil' HTTP Server urlcount.cgi CSS

From: support@securiteam.com
Date: 06/28/02 

From: support@securiteam.com
To: list@securiteam.com
Date: Fri, 28 Jun 2002 08:29:39 +0200 (CEST)

The following security advisory is sent to the securiteam mailing list, and can be found at the SecuriTeam web site: http://www.securiteam.com
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  Lil' HTTP Server urlcount.cgi CSS
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SUMMARY

 <http://www.summitcn.com/lilhttp/lildocs.html> Lil'HTTP contains a little
CGI that will count how many times a link (a href) URL is clicked on. It
can also give reports on all of the collected data. However, a security
vulnerability in the CGI allows remote attacker to cause a cross-site
scripting issue.

DETAILS

Vulnerable systems:
 * Lil' HTTP Server version 2.2

The vulnerability lies in the "REPORT" functionality of urlcount.cgi that
in certain cases will return the JavaScript or HTML content of what the
user provided without filtering it for malicious content.

Workaround:
Users can protect themselves by removing the sample file.

ADDITIONAL INFORMATION

The information has been provided by <mailto:mattmurphy@kc.rr.com>
Matthew Murphy.

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