Internal corporate, yes.  Directly exposed to the internet? I would hope not.

From: Brian Desmond [mailto:[email protected]]
Sent: Thursday, October 07, 2010 10:34 AM
To: NT System Admin Issues
Subject: RE: Need System/Application Security Advice

Ermm what you describe (as I understand it) is probably how 75-90 percent of 
apps run on IIS in a corporate environment.

Thanks,
Brian Desmond
[email protected]

c - 312.731.3132


From: Klint Price [mailto:[email protected]]
Sent: Thursday, October 07, 2010 7:28 PM
To: NT System Admin Issues
Subject: Need System/Application Security Advice

My off-hour job is consulting for various companies.  One such small company 
puts out a product that I feel needs to be fixed.

Company sells two products;  ProductA integrates with ProductB which both 
manage sensitive data and are exposed to the public Internet

Windows Forms Authentication is tied to LDAP to authenticate users prior to 
allowing them into the inner-workings of the system.

ProductA and ProductB are configured so that IIS allows a domain account to run 
the entire website for anonymous users (the equivalent of running an app pool 
with a domain account).

Because the entire site runs under the domain account, there are inherent 
security risks which Company fails to disclose.

I am about to send off an e-mail to the higher ups detailing why this is a bad 
idea without instructing the customer on the possible security risks, and 
associated steps to mitigate, let alone re-architect the application to reduce 
this exposure.

Why is it a bad idea to configure a site in this way out-of-the-box, and what 
articles can you point me to?  Any security articles would also be appreciated.

At minimum I think the domain user should be removed from the "domain users" 
group, with additional GPO's applied to lock down the account.

What say ye?



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