Date: Thu, 31 Aug 2006 09:03:03 +0200
From: "Lohan Spies" <lohan.spies@...il.com>
Cc: full-disclosure@...ts.grok.org.uk
Subject: Re: Secure OWA

thanks for all the replies and solutions mentioned.

My actual need will be to allow users to login via OTP to exchange with a
SSO solution that will handle the domain username and password. (Or disable
the domain username and password authentication for exchange in some way, so
that they only use the OTP?)

The reason for this is because all users use smartcards to login on the
internal network and RAS etc.

But when they are away and need to use a public computer to access their
email via OWA, they would need some OTP because the public computer won't
have a smartcard reader for instance.

I thought about using OTP with an AAA server and SSO solution for auth? Any
suggestions of proven implemented products that could do the trick?


On 8/30/06, Fetch, Brandon <BFetch@...pac.com> wrote:
>
> Hijack:
>
> So AOL doesn't play nice with IETF protocol standards?
>
> *mock alarm*
>
> NEVER!?
>
> Sounds like a throwback to their old days of being the Internet's nanny
> for the world.
>
> "Let's 'cleanse' this data for you so as not to be offended based upon
> your parental filters..."
>
> I suppose we should be happy they're continuing their ways...
>
> Brandon
>
> -----Original Message-----
> From: full-disclosure-bounces@...ts.grok.org.uk
> [mailto:full-disclosure-bounces@...ts.grok.org.uk] On Behalf Of Brian
> Eaton
> Sent: Wednesday, August 30, 2006 4:15 PM
> To: Mark Senior
> Cc: full-disclosure@...ts.grok.org.uk
> Subject: Re: [Full-disclosure] Secure OWA
>
> On 8/30/06, Mark Senior <senatorfrog@...il.com> wrote:
> > I think a possibly better approach, although it doesn't seem like you
> > could implement it quite as simply as account lockouts, would be to
> > lock out, not the account, but the originating IP address, for a
> > duration.
>
> Ever since I read this thread
> (http://vegan.net/lb/archive/08-2004/0118.html) on one of the
> load-balancer discussion lists I've been skeptical of using IP
> addresses for much of anything.  My guess is that if you do things
> like ban IPs automatically you run the risk of accidentally locking
> out thousands of legit users as well as the one who is misbehaving.
>
> A few of the more interesting comments in the thread:
>
> "...myriad of enterprise networks that load-balance outbound client
> connections across proxy servers which are connected to different
> ISPs, with totally different source IP..."
>
> "...The AOL client does a split tunnel type thing, where the HTTP gets
> tunneled through the UDP conversation to AOL's network and back out
> the proxies to the Internet, but the HTTPS (and other stuff) goes
> directly from client to server..."
>
> Regards,
> Brian
>
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-- 
Lohan Spies
083 258 2698

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