full-disclosure - Anyone? Important Security Update for the .NET Messenger Service

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From: koen4security at hotmail.com (Koen Van Impe)
Subject: Anyone?  Important Security Update for the .NET Messenger Service

This seems closely related to my previous post:

http://slashdot.org/article.pl?sid=03/08/20/221226
-------

Hi List,

Has anyone seen this recent so called 'update' for MSN Messenger? This
(full-email follows below) was in my mailbox today but as far as I know
there is no critical update needed for MSN Messenger. Any clues as where
to look for? 

I'm under the impression that this is more like a 'install this so that
we can tell what you're doing' security update than in fact a real
security update.

Off course, as always, e-mail headers from Microsoft-mail to Hotmail are
very little informative. This was in the headers :

<header>
From: ".NET Messenger Service Staff" <dot_net_msgr_svc@...r.hotmail.com>
Subject: Important Security Update for the .NET Messenger Service
Date: Mon 18, Aug 2003
Mime-Version: 1.0
Content-Type: text/html; Charset=iso-8859-1
Content-Transfer-Encoding: 8bit
</header>

<mail>
ATTENTION: IMMEDIATE ACTION REQUIRED FOR MSN AND WINDOWS MESSENGER
USERS.

You are receiving this e-mail because you are a MSN Messenger or Windows
Messenger Service user.

As part of Microsoft's Trustworthy Computing initiative, Microsoft is
updating the .NET Messenger Service and providing you with an important
MSN Messenger or Windows Messenger security update.

If you are using MSN Messenger 5.0, Windows Messenger 4.7.2000, or MSN
Messenger for Mac 3.5, or any versions higher than these, you do NOT need
this security update. To find out which version you have, select the
'Help' menu in Messenger, then select 'About'. If you are using an older
version, or are not sure, please visit:
http://messenger.msn.com/Help/Upgrades.aspx
for an update.

NOTICE: If you are not using an updated version, you will be unable to
continue using your MSN Messenger or Windows Messenger Service.

Thank you for helping Microsoft further its commitment to helping you
protect your privacy and security online.

You can view the .NET Messenger Statement of Privacy at:
http://messenger.msn.com/Help/Privacy.aspx
and the .NET Messenger Service Terms of Use and Notices at:
http://messenger.msn.com/Help/Terms.aspx.
</mail>