Re: PIX and ttl

From: Konstantin Rozinov (ukonat_private)
Date: Fri May 25 2001 - 22:59:58 PDT

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    nmap also can't fingerprint against SMC Barricades.
    
    Kon
    
    Fernando Cardoso wrote:
    
    > > 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.cardosoat_private     http://www.whatevernet.com/
    >
    > >
    >
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