Re: Assessing a machine with 2 NICs

From: Andres Riancho (andres.riancho@gmail.com)
Date: Sun Sep 11 2005 - 17:31:47 EDT


barcajax@gmail.com wrote:

>Lets say we have a machine running critical business applications connected to the enterprise network on 2 NICs. From an assessment/audit point of view, is it necessary to scan both NICs using assessment tools like NMap and Nessus?
>
Yes, of course you have to. Some daemons listen only on the specified
IP's/interfaces while others listen on "0.0.0.0" ( all ). If you scan
only eth0 and there is a daemon that only listens on eth1's IP you are
missing services that could lead to a security breach.

>Will both scan results produce the same findings (as in same ports and services open)?
>
>
No, read above.

>Does the OS or applications influence the detection of ports/services on different NICs on the same physical machine?
>
>
OS wont make a diference here, just application configuration.

-- 
Andrés Riancho
http://www.securearg.net/
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