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FW: NAC Question
From: kevin fielder <kevin.fielder () gmail com>
Date: Wed, 8 Apr 2009 07:57:19 +0100

Hi

Another great benefit of many (most?) MAC products is that you can
assist yourselves and your uses in maintaining their machines.

You configure various  polices such as AV installed and patched,
latest O/S patches installed, local firewall running etc.
If the client machine fails any of these checks it is only allowed to
connect to certain machines / links (e.g. your update server, your AV
server, windows update etc) This can be achieved either by the NAC
client restricting access or by the NAC client forcing the machine
onto a 'dirty' network.

The machine is either automatically updated, or on screen (via the
browser) instructions are provided to the user to update the machine
and bring it into compliance.

Once the machine meets the NAC rules it is then able to connect to the
normal office network.

Most of the big players offer a NAC solution with the most
comprehensive usually consisting of a local client and a back end
device of some sort (Hardware device or software installed on a
standard server).  Cisco's offering is very good though as with most
of the best solutions clearly has cost implications.

cheers

K


-----Original Message-----
From: listbounce () securityfocus com
[mailto:listbounce () securityfocus com] On Behalf Of aditya mukadam
Sent: 07 April 2009 07:50
To: avghacker () gmail com; security basics
Subject: Re: NAC Question

Let the worm, not be the only reason to use NAC.

Using NAC has many advantages w.r.t mitigating worms :
1) It can perform check on laptops connecting devices for the AV, Firewall etc
2) Wireless guest users can be authenticated and checked for security.
3) You can enforce policy if NAC is integrated with FW/ URL filtering
server on per user basis.

Hope this helps.

Thanks,
Aditya Govind Mukadam

On Tue, Mar 24, 2009 at 10:19 PM, <avghacker () gmail com> wrote:

Well we have the downadup worm floating around our network and are slowly trying to deal with it.  Our environment 
has a lot of users who are local admins so they basically are allowed to download anything here and at home.  I 
wanted a way to keep them off the network unless they have patches and an AV solution.  Many users only pull out 
their laptops every couple of weeks so obviously the update server isn't reaching them.

Side note: already have and ids in place ------Original Message------
From: exzactly
To: avghacker () gmail com
To: security-basics () securityfocus com
Subject: Re: NAC Question
Sent: Mar 24, 2009 12:34 PM

Are you sure NAC is the way to go for your issue? An IPS may be a
better option to keep the spread of Malware down. NAC can be
expensive, messy to implement and time consuming, it has it's place
but I don't know if your requirements would warrant it. Can you add a
little more information to your issue?

--------------------------------------------------
From: <avghacker () gmail com>
Sent: Friday, March 20, 2009 4:39 AM
To: <security-basics () securityfocus com>
Subject: NAC Question

Hey all was wondering if anyone had any experience with deploying or
maintaining a NAC?  I'm looking for recommendations, advice,
gotchas, etc...

Having some serious malware issues in a place that doesn't have
patch management and I'm looking to turn to a NAC to help bring the
network under control.....advice?

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