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Vulnerability Development: Re: AnalogX Proxy SMTP server relay

Re: AnalogX Proxy SMTP server relay

From: Joe Stewart <jstewart_at_lurhq.com>
Date: Sat, 06 Oct 2001 02:57:21 -0400

Claymore wrote:
>
> Increasing numbers of users who are using AnalogX Proxy SMTP servers are
> being reported for mail open relays, though when a standard relay check is
> used it comes back as not relaying.

Correct me if I am wrong, but it looks as though AnalogX only checks for a
user configured email alias in the "MAIL FROM:" header to determine if it
will relay or not. So if I find a valid email alias, I can relay mail through
your proxy to anyone.

-Joe
 

-- 
Joe Stewart  Information Security Analyst 
         jstewart_at_lurhq.com 
-----------------------------------------
 "24x7 Enterprise Security Monitoring"
LURHQ Corporation  http://www.lurhq.com/
Received on Oct 06 2001
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