Re: Exploiting Google MX servers as Open SMTP Relays

["Todd T. Fries" <todd@xxxxxxxxx>]

Yes this is very frustrating.

The details are not so hard to guess.  Unless this post is different,
anyone can send an email to a nonexistent user at a google service and
they accept it and bounce back to the envelope recipient. *sigh*.

We are going back to the stone age by copying qmails default stupidity.

This is doing very much harm.

I would even go as far as to say that Google is making a business case for
its latest purchase, postini, in a very evil way, every second this proble
goes unsolved.

*sigh*
-- 
Todd Fries .. todd@xxxxxxxxx

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                        http://todd.fries.net/pgp.txt

Penned by Michael Scheidell on 20080510  9:55.32, we have:
| 
| 
| > From: <pablo.ximenes@xxxxxxx>
| > Date: 7 May 2008 20:37:46 -0000
| > To: <bugtraq@xxxxxxxxxxxxxxxxx>
| > Subject: Exploiting Google MX servers as Open SMTP Relays
| > 
| > 
| > Vulnerability Report:
| > 
| > As part of our recent work on the trust hierarchy that exists among email
| > providers throughout the Internet, we have uncovered a serious security flaw
| > in Ggoogle's free email service, Gmail.
| > 
| > Disclosure:
| > We have contacted Google about this issue and are waiting for their position
| > before releasing further details.
| > 
| 
| Don't hold our breath.. I have tried to get them to close this very hole for
| maybe a year now.
| 
| (see/'google' for posts in bugtraq and spamassassin users group showing
| headers from unrelated domains sending spam through google mail servers..
| They ignore the emails to abuse@xxxxxxxxxx)
| 
| 
| -- 
| Michael Scheidell, CTO
| >|SECNAP Network Security
| Winner 2008 Network Products Guide Hot Companies
| FreeBSD SpamAssassin Ports maintainer
| 
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