Re: [PEN-TEST] eMail auditing problem

[Jose Nazario <jose () BIOCSERVER BIOC CWRU EDU>]

On Wed, 13 Sep 2000, Groh, Jens wrote:

> I've heard from a customer, that he believes, that all of his outgoing
> mail is read by someone using an email sniffer! My question now is:
> has that to be server sided? I mean can anyone use this email sniffer
> or has he or she already hacked the outgoing mail server?

the server need not be compromised. anything on the same
routed/switched/shared segment can be sniffed using the appropriate
methods. if someone's nefarious enough, routing wouldn't even be a
problem.

> How is this to be done?
> What programms?
> What procedure?
> How would you do that?

check for mailsnarf from dug song
(http://www.monkey.org/~dugsong/dsniff/). it's quite easy.

if they're worried about email being read, use encryption. s/mime or pgp
would or should suffice.

jose nazario                                    jose () biochemistry cwru edu
PGP fingerprint: 89 B0 81 DA 5B FD 7E 00  99 C3 B2 CD 48 A0 07 80
Public key available at http://biocserver.cwru.edu/~jose/pgp-key.asc