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Network Security Pen-Test
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RE: All tcp ports open?

Subject: RE: All tcp ports open?
Date: Mon, 30 Aug 2004 16:01:45 -0700
-----Original Message-----
From: sol seclists [mailto:ramatkal@hotmail.com] 
Sent: Monday, August 30, 2004 2:01 PM
To: Ben Timby; pen-test@securityfocus.com
Subject: Re: All tcp ports open?


A script which does exactly what you desrcibe is mentioned in the book
"hacking: the art of exploitation" by jon erickson only on a 
linux machine.

the basic idea is something like:

use tcpdump to monitor all incoming SYN packets not destined 
for any listening service and then use a packet generation 
tool (such as nemsis) to generate a packet with a seq#+1 and 
the SYN and ACK flags set.
 
Are you saying that the specific script that implements this will only work
on a Linux machine, or are you saying that the idea described is only
applicable on a Linux machine?

FWIW, the idea should work on pretty much any machine capable of sniffing
and spoofing, ie, everything but XP SP2.

-- Cory


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