Remote DoS Attack in Windows 2000/NT 4.0 TCP/IP Print Request Server Vulnerability

   

Windows

Microsoft Windows

Binary DOS

windosprs.exe

Source of Binary DOS

windosprs.zip


USSR Advisory Code:   USSR-2000037


Release Date:
March 30, 2000


Systems Affected:
Microsoft Windows NT 4.0 Workstation
Microsoft Windows NT 4.0 Server
Microsoft Windows NT 4.0 Server, Enterprise Edition
Microsoft Windows 2000 Professional
Microsoft Windows 2000 Server
Microsoft Windows 2000 Advanced Server


Services Affected:
SimpTCP, 
DHCPServer
FTPSvc, 
LPDSvc, 
BinlSvc, 
TCP/IP Print Request Server.


THE PROBLEM

Ussr Labs found a heap memory problem in TCP/IP Print Server, if anyone perform a atack with 
specially-malformed information to port (515 Print Server),could cause the process 
containing the service to crash,and also could cause other services such as, SimpTCP, DHCPServer
FTPSvc, LPDSvc, BinlSvc,to stop.



The Exploit: 

The D.O.S, stop the remote machine services:
SimpTCP, 
DHCPServer
FTPSvc, 
LPDSvc, 
BinlSvc, 
and crash the TCP/IP Print Request Server


Vendor Status:
Contacted: Mon 2/28/2000 5:54 PM

Vendor   Url: http://www.microsoft.com
Program  Url: http://www.microsoft.com/windows/default.asp


Fix:

Windows 2000 (all versions):
http://www.microsoft.com/Downloads/Release.asp?ReleaseID=19884

Windows NT 4.0 
http://www.microsoft.com/downloads/release.asp?releaseID=20015

Windows NT 4.0 Alpha:
http://www.microsoft.com/downloads/release.asp?releaseID=20016


More Information:
http://www.microsoft.com/technet/security/bulletin/ms00-021.asp

Microsoft Security Bulletin MS00-021: Frequently Asked Questions, 
http://www.microsoft.com/technet/security/bulletin/fq00-021.asp

Microsoft Knowledge Base (KB) article Q257870.
http://www.microsoft.com/technet/support/kb.asp?ID=257870 

Greetings:
Eeye, Attrition, w00w00, beavuh, Rhino9, SecurityFocus.com, ADM, HNN, Technotronic and Wiretrip.

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