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RE: Browser login with Windows domain login
From: "Simon Cunningham" <Simon.Cunningham () enline com>
Date: Thu, 8 Apr 2004 16:11:01 +0100

That's what NTLM does.

There are a number of prerequisites required to get this to work which may be at odds with your application - 
everything (usually) has to be Microsoft, web server has to be in same domain, users need to set up IE so it sends 
credentials, AD can't be in native mode (I think).

I'm sure those more knowledgeable than I will point out the vulnerabilities in this approach.

Depending upon what you want to do in the application with user identity you might want to use NTLM authentication in 
conjunction with something like Netegrity SiteMinder.


-----Original Message-----
From: stevenr () mastek com [mailto:stevenr () mastek com]
Sent: 08 April 2004 14:22
To: webappsec () securityfocus com
Subject: Browser login with Windows domain login


I needed some pointers/links/tips from you folks on a problem. 

I have a web-based application. Is it possible to sign in a user into
the browser based application transparently based on the windows NT
domain login. By this I mean that when the user opens the browser and
types in the URL, the client machine should automatically send the user
credentials to the application. FYI, the windows domain login is
authenticated against Microsoft Active Directory.

If this is possible, can anyone point me to some sites/tutorials? I have
googled but have not come up with anything useful, hence this mail.

Are there any known vulnerabilites with this kind of approach for web
based logins?

Any help would be appreciated.


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