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Network Security Snort-Signatures
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[Snort-sigs] possible fix for FPs for EXPLOIT CDE dtspcd exploit attem

from [Russell Fulton] Network Security [Permanent Link]
Subject: [Snort-sigs] possible fix for FPs for EXPLOIT CDE dtspcd exploit attempt sid:1398
Date: Fri, 28 Oct 2005 20:39:04 +1300 


Russell Fulton wrote:

I have recently (last week or so) been seeing hits on this rule -- it
would appear that something other than dtspcd is now using tcp 6112.



most likely candidate is World of Warcraft game that also uses tcp-6112.

I've found a packet dump of a real exploit and you need several 100
chars of NOPs so I propose adding isdata:500 to this sig that will stop
it triggering on the short packets used by the game.  I suspect this sig
 predates isdata or it would have been used.

Is there any interest in updating the rule?

Russell


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