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Firewall Audit
From: gbugbear at gmail.com (Tim Mugherini)
Date: Wed, 10 Jun 2009 07:21:13 -0400

I agree with Ron. Config review is where you should start. If best
practice or guidance documentation is not avaible from the firewall
vendor and internal expertise does not exist, then seriously consider
bring in a consultant with that expertise (specific to the product you
are using).

Not only will that expertise be invaluable in your audit, it will be a
fantatstic learning opportunity for those resposible for the day to
day administration.

Testing should also be done but again tools are only useful to those
experienced in them. Tools such as NMAP, for example, can be powerful
if one understands how to use the options available. Scans of a
statefull verse stateless firewall for example.

A test environment, as mentioned by Jack is also a must in my opinion
and can only assist in training those responsible.

Hope this helps.

On 6/10/09, Ron Gula <rgula at tenablesecurity.com> wrote:
On 6/9/2009 3:45 PM, Chris wrote:

Hi all,

I have been asked by management to conduct an audit of a Firewall,  no
actual specification has been created.

So what I'm asking is, I have to create a terms of reference and
specify what I'm going to audit.

I have started looking at the OSSTMM Firewall test, and would like to
know how to conduct the test.

Tools(nmap,hping,nessus) and what types of things I should be looking
for in the scans.



*/Help me, /Pauldotcom//; /you/'/re my only hope/*/ (Sorry big
StarWars fan)///


Tools aside, I'd start with the config of the firewall and attempt to
understand how it is
set up. If there is no real policy for which to compare this against,
I'd audit what can get
through in both directions and then describe this to your management.
I'd also do a vuln
audit of the firewall, but this should be a detail and not where you start.

Ron Gula
Tenable Network Security


-- 
Sent from my mobile device


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