WebApp Sec: Re: Internal servers, web application firewalls, and learning modes

[Thomas Wallutis <thomas () wallutis de>]

Hi,

On Tue, Dec 02, 2008 at 08:14:25AM -0800, Dan Lynch wrote:

> All other things being equal, is a web application firewall an 
> effective way to protect an internal web server from attack? 
What kind of attack do you expect? What asset do you want to protect?
Its difficult to give an answer when the question is not clear.

> Is ISA Server a useable WAF for an organization with little 
> internal expertise? 
As far as i understand what a WAF should do i would not call ISA a WAF.

But you can publish internal web servers and do the authentication at
the ISA server and not at the web server.

My personal opinion is that you really need a redesign of your internal
net. Separate the customers web servers from your domain. You are
working on the symptoms, not on the problem.

Greetings 

Thomas

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