full-disclosure - User Enumeration Flaw

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Message-ID: <43F7A156.80908@snosoft.com>
Date: Sat Feb 18 22:36:25 2006
From: simon at snosoft.com (Simon Smith)
Subject: User Enumeration Flaw

Mar,
    You are a dork... but thanks for posting this to the world, its very
useful, we'll get right on fixing this, can we fix you too?

Mar.Shatz@...cation.gov.il wrote:
> whitehouse.gov          MX      100 mailhub-wh2.whitehouse.gov
> noone@box:~$ 
> noone@box:~$ telnet mailhub-wh2.whitehouse.gov 25
> Trying 63.161.169.140...
> Connected to mailhub-wh2.whitehouse.gov.
> Escape character is '^]'.
> 220 whitehouse.gov ESMTP service at Sun, 12 Feb 2006 11:29:38 -0500 (EST)
> helo jojo
> 250 esgeop03.whitehouse.gov Hello [xxx.xxx.xxx.xxx], pleased to meet you
> mail from:bob@....com
> 250 2.1.0 bob@....com... Sender ok
> rcpt to:gbush@...tehouse.gov
> 550 5.1.1 gbush@...tehouse.gov... User unknown
> rcpt to:president@...tehouse.gov
> 250 2.1.5 president@...tehouse.gov... Recipient ok
> quit
> 221 2.0.0 esgeop03.whitehouse.gov closing connection
> Connection closed by foreign host.
>
> User enumeration at the whitehouse
> _______________________________________________
> Full-Disclosure - We believe in it.
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>   




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