Great Circle Associates Firewalls
(November 1996)
 

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Subject: Re: Portscan by Netmeeting
From: Robert Hanson <roberth @ cet . com>
Date: Mon, 4 Nov 1996 09:00:05 -0800 (PST)
To: Greg . Donkin @ roke . co . uk
Cc: Firewalls @ GreatCircle . COM
In-reply-to: <9610048471 . AA847121120 @ sage . roke . co . uk>

without a lot of thought... it occurs to me that if the scan started below
port 1024 that you are being lied to...

without testing it, i doubt that the programmers at microsoft would make
"that blatant" of a boo boo...

it would kind of be like me scanning your network to use a great new
program called... "pickAmachineANDaPORTsmtp" to send this email to you....

--->
Robert H. Hanson                 Cutting Edge Communications, Inc.
Otis Orchards, Wa.         Regional Commercial Internet Service Provider
(509) 927-9541             email: roberth @
 cet .
 com -  http://www.cet.com/



On Mon, 4 Nov 1996 Greg .
 Donkin @
 roke .
 co .
 uk wrote:

> 
> The other day i was looking at the logs from our Firewall-1 and saw a 
> portscan starting at port 1 all the way up to 65535. Of course i start 
> looking at it further & discover it's come from the *inside* of the wall. 
> Looks like one of the users has been playing around, so pausing only to 
> pick up the office baseball bat on the way out, i go to have a quiet word, 
> but when i talked to him he said it's part of the beta Netmeeting 2 from 
> our old chums Microsoft. I haven't looked at it myself but i'd take our 
> guy's word for it. He says it's a few lines of VBasic which looks for a 
> port to use. Seems to me this is, how shall i put it? Irresponsible? 
> Designed to piss off Firewall administrators?
> 
> Anyone else come across this? Anyone from M$ care to comment?
> 
> Greg
> 
> Greg Donkin             Email: Greg .
 Donkin @
 roke .
 co .
 uk
> 
> Siemens Business Services at Roke Manor Research
> 
> #include <std.disclaimer.h>
> 



References:
Indexed By Date Previous: Re: Spoofing... How does it work.
From: ormonde @ trem . cnt . org . br (Rodrigo Ormonde)
Next: Duplicate messages on Firewalls
From: Chris Pugrud <ChrisP @ steldyn . com>
Indexed By Thread Previous: Portscan by Netmeeting
From: Greg . Donkin @ roke . co . uk
Next: Re: Portscan by Netmeeting
From: Darwin Martinez <darwin_martinez @ INS . COM>

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