DST2K0012.txt

`================================================================================  
Delphis Consulting Plc  
================================================================================  
  
Security Team Advisories  
[06/06/2000]  
  
  
[email protected]  
[http://www.delphisplc.com/thinking/whitepapers/]  
  
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Adv : DST2K0012  
Title : BufferOverrun in HP Openview Network Node Manager v6.1  
Author : DCIST ([email protected])  
O/S : Microsoft Windows NT v4.0 Workstation (SP6)  
Product : HP Openview Network Node Manager v6.1  
Date : 06/06/2000  
  
I. Description  
  
II. Solution  
  
III. Disclaimer  
  
  
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I. Description  
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Vendor URL: http://www.openview.hp.com/  
  
Delphis Consulting Internet Security Team (DCIST) discovered the following  
vulnerability in HP Openview Node Manager under Windows NT.  
  
Severity: high  
  
By using the Alarm service which is shipped and installed by default with HP  
openview network node manager it is possible to cause a Buffer overrun in   
OVALARMSRV overwriting the EIP allowing the execution of arbitry code. This   
is done be connecting to post 2345 which the port resides on by default and   
sending a large string. The string has to be a length of 4064 + EIP (4 bytes)   
making a total of 4068 bytes.  
  
  
II. Solution  
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Vendor Status: Informed  
  
Currently there is no vendor patch available but the following are preventative  
measures Delphis Consulting Internet Security Team would advise users running  
this service to implement.  
  
o Access list port 2345 on the next hop router for only allowed hosts.  
  
III. Disclaimer  
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THE INFORMATION CONTAINED IN THIS ADVISORY IS BELIEVED TO BE ACCURATE AT  
THE TIME OF PRINTING, BUT NO REPRESENTATION OR WARRANTY IS GIVEN, EXPRESS OR  
IMPLIED, AS TO ITS ACCURACY OR COMPLETENESS. NEITHER THE AUTHOR NOR THE  
PUBLISHER ACCEPTS ANY LIABILITY WHATSOEVER FOR ANY DIRECT, INDIRECT OR  
CONSEQUENTIAL LOSS OR DAMAGE ARISING IN ANY WAY FROM ANY USE OF, OR RELIANCE  
PLACED ON, THIS INFORMATION FOR ANY PURPOSE.  
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