[NT] Sambar Webserver DoS Vulnerability (cgitest.exe)

From: support@securiteam.com
Date: 01/23/02 

From: support@securiteam.com
To: list@securiteam.com
Date: Wed, 23 Jan 2002 23:40:51 +0100 (CET)

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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  Sambar Webserver DoS Vulnerability (cgitest.exe)
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SUMMARY

 <http://www.sambar.com/> Sambar Server is a multi-threaded HTTP server
for Microsoft Windows and UNIX systems. A security vulnerability in the
web server's default CGIs allows remote attackers to cause the server to
crash possibly executing arbitrary code.

DETAILS

Vulnerable systems:
Sambar Webserver version 5.1

Sambar Webserver is bundled with a sample cgi script (testcgi.exe) which
create security flaw. Server crashes after sending very long request a few
times.

Exploit:
GET /cgi-win/cgitest.exe?AAAAA...(Ax4000)...AAAAA HTTP/1.1

ADDITIONAL INFORMATION

The information has been provided by <mailto:ts@securityoffice.net> Tamer
Sahin.

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