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CERT Coordination Center

Nobreak CrazyWWWBoard contains buffer overflow via User-Agent field

Vulnerability Note VU#229955

Original Release Date: 2002-09-16 | Last Revised: 2004-02-23


Some versions of CrazyWWWBoard contain a buffer-overflow vulnerability that can be exploited by a remote user to execute arbitrary code.


CrazyWWWBoard is a binary CGI program that is designed to provide dynamic web bulletin board services on web servers. Versions 2000p4 and 2000LEp5 of CrazyWWWBoard contain a buffer overflow vulnerability resulting from improper handling of the HTTP_USER_AGENT CGI environment variable.


A remote attacker can exploit this vulnerability to execute arbitrary code with privileges of the web server CGI process.


The CERT/CC is currently unaware of a practical solution to this problem.


Vendor Information

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Updated:  January 30, 2002



Vendor Statement

No statement is currently available from the vendor regarding this vulnerability.

Vendor Information

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


The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us email.

CVSS Metrics

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



Thanks to teleh0r for reporting this vulnerability.

This document was written by Shawn Van Ittersum.

Other Information

CVE IDs: None
Severity Metric: 4.71
Date Public: 2001-03-31
Date First Published: 2002-09-16
Date Last Updated: 2004-02-23 22:09 UTC
Document Revision: 7

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