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Re: Mail Relay / Open Mail Replay
From: haZard0us <hazard0us.pt () gmail com>
Date: Sun, 02 Oct 2011 20:33:05 +0100

On 02-10-2011 19:25, informationhacker08 wrote:
Suppose there is Mail server having port 25 open xyz.com
an attacker login on Mail server  through telnet and then try to send the
mail but the he can
  only send a mail within the xyz company not outside ..so this will be
consider as Vulnerability or not

eg. telnet xyz.com
mail from:<dddd () ddddd com>
mail rcpt :<vbn () xyz com>--->only within  the network not outside realying
the mail

In my humble opinion, i think that it is.

Because if he can access your mail server, he can send mails pretending whoever he wants to be. Social Engineering attacks work like these.

This is my humble opinion, since i'm still a "new kid on the block".


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