full-disclosure - perfect security architecture (network)

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Date: Tue Aug  9 02:34:33 2005
From: charles.heselton at gmail.com (Charles Heselton)
Subject: perfect security architecture (network)

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Although Daniel's comments may be tongue-in-cheek, there is some
truth.  Here are a few ideas that have become more or less mantras
for me, personally....

There IS NO *perfect* security.

Defense in depth.

The larger your network is, the less effective your perimeter
becomes.

The end user is always the weakest link.

There may be a few more that people feel I have left out.  Basically,
if you're asking what I think you're asking, you have to be able to
cater the level of security you're providing to the needs of your
customer.  Anti-virus/spyware software, firewalls, IDS/IPSs,
"Security Minded" routing......all of these thing have a part in an
ideally secure situation.  The point is to identify the most critical
assets and possible vectors of attack.  Then you design a security
architecture that 1) addresses those vectors, and 2) has multiple
layers that should one preventative method fail, another will
detect/prevent (defense in depth).  There will always be someone out
there who is able to figure out a hole, with enough knowledge,
experience, persistence, and luck.

If you have a customer that is asking for "perfect security", tell
them it can't be done.  If you're asking a philosophical question,
well secure application development can make a security
professional's life a little easier, but it's not going to solve the
fundamental problem.  But, just like the rest of the security tools
(firewalls, etc.), more secure applications and programming
techniques only play a part.

HTH.

- --
- - Charlie

5A27 58D2 C791 8769 D4A4  F316 7BF8 D1F6 4829 EDCF

> -----Original Message-----
> From: full-disclosure-bounces@...ts.grok.org.uk 
> [mailto:full-disclosure-bounces@...ts.grok.org.uk] On Behalf 
> Of Daniel H. Renner
> Sent: Monday, August 08, 2005 9:08 AM
> To: full-disclosure@...ts.grok.org.uk
> Subject: Re: [Full-disclosure] perfect security architecture
> (network)  
> 
> Good Lord C0br4,
> 
> Did your new client give you a shopping list or what?
> 
> Use the force C0br4!  The force (of the right forum) will protect
> you!  
> 
> -- 
> Dan Renner
> Los Angeles Computerhelp
> http://losangelescomputerhelp.com
> 
> 
> On Mon, 2005-08-08 at 12:00 +0100,
> full-disclosure-request@...ts.grok.org.uk wrote:
> > Date: Mon, 8 Aug 2005 11:04:34 +0530
> > From: C0BR4 <cobradead@...il.com>
> > Subject: [Full-disclosure] perfect security architecture
> > (network) To: websecurity@...appsec.org
> > Message-ID: <457462ba0508072234bc6216c@...l.gmail.com>
> > Content-Type: text/plain; charset=ISO-8859-1
> > 
> > Hey guys,
> > 
> > Have couple of questions need answers plz...........
> > 
> > There are three attacks that jeopardize Information security. 
> > 
> >                                 ------------------------------
> > - secure Network      -
> > ------------------------------
> > - secure Host           -
> > ------------------------------
> > - secure Application  -
> > -------------------------------
> > 
> > How can we optimize security? Stopping attacks at network 
> or building
> > secure applications..
> > 
> > How should we deal with these attacks? People talk about
> > Firewall, IDS/IPS etc..
> > 
> > What's best?
> > 
> > If asked to give a perfect security architecture (network) 
> what would
> > you suggest?  Given
> > a Firewall, Router, IDS, IPS and Anti-virus .
> > 
> > thank you
> > C0br4
> 
> 
> _______________________________________________
> Full-Disclosure - We believe in it.
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