Penetration Testing mailing list archives

Re: [PEN-TEST] IDS identification and a personal cry for help :)


From: Domenico De Vitto <dom () DEVITTO DEMON CO UK>
Date: Fri, 18 Aug 2000 22:58:13 +0100

Yep, this works too, but if you've a switch, you just put that port
as a recieve-everything-on-all-vlans mode.

Strangely, nobody has mentioned simply not having an IP stack on the
interface - al la SunScreens.

I am right in saying that the very first IDS (by Texas Uni ) was a external
DOS box that just sniff'd & logged without having a network stack at all?

Dom

-----Original Message-----
From: Penetration Testers [mailto:PEN-TEST () SECURITYFOCUS COM]On Behalf
Of Michael Schubert
Sent: 18 August 2000 02:59
To: PEN-TEST () SECURITYFOCUS COM
Subject: Re: [PEN-TEST] IDS identification and a personal cry for help
:)


 The correctly paranoid install Ethernet or optical (depending on
flavor of sniffed connection) condoms aka the Shomiti Century tap for
10/100/1000 Ethernet utp or optical from  www.shomiti.com or the netoptics
%80/%20 optical splitters from www.netoptics.com. With them in place
and either no management connection or a properly isolated management
connection (i.e. no connection to the Internet) it really doesn't matter
what ports are or are not open on your IDS because the tap is one way, it
doesn't have a connection to the transmit side of your IDS (except to

Along this same line the poor-man's solution to this, I believe would be
to simply use a hub between box A and box B with box C on the hub with
the transmit pair of the rj45 disconnected (cut-out), I'm thinking this
would achieve the same effect of a completely muted promisc box,
although this wouldn't be possible with fiber. Anyone ever tried this?

-- Michael Schubert -- schubert () fsck org


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