[Dailydave] DNS Guess 2 for the day

Dave Aitel dave at immunityinc.com
Sat Jul 12 16:56:35 EDT 2008


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So you don't really want to spoof the client. You want to spoof the 
resolver. So you pretend to be a resolver below it, and pass it along a 
fake request (with a TXID), and then immediately send him the spoofed 
response (since you specified the TXID) and his port is known. He then 
sends you the response (which is the one you spoofed him) and is poisoned.

- -dave

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