RE: PIX and ttl

["Fernando Cardoso" <fernando.cardoso () whatevernet com>]

> You are making sense and I have seen the same thing.  NMAP can't identify
> the servers behind the PIX.  That's a good thing.

Yes, I agree with you. But then, it also makes PIX identification easier.

> I am not sure how you identify the PIX. How do you fingerprint
> servers when
> you don't know what the servers are or if they are behind a PIX?

It was easy this time. If the PIX has the "fixup protocol smtp" enabled it
would act as a "proxy" for smtp connections. The banner you would see then
is something like this:
220 ********0********************************************0*2******00
***************2******200***0********0*00

About the servers, IIS 5.0 was kind enough to provide me some info about the
system :)

Cheers

Fernando

--
Fernando Cardoso - Security Consultant       WhatEverNet Computing, S.A.
Phone : +351 21 7994200                      Praca de Alvalade, 6 - Piso 6
Fax   : +351 21 7994242                      1700-036 Lisboa - Portugal
email : fernando.cardoso () whatevernet com     http://www.whatevernet.com/


>


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