SecurityFocus

Block OS Detection Aug 31 2007 10:14AM
Attari Attari (c70n3 yahoo co in) (4 replies)

Re: Block OS Detection Sep 05 2007 08:00AM
John Brazel (johnbrazel gmail com) (1 replies)

RE: Block OS Detection Sep 05 2007 12:09PM
Arafat M. Bique (arafat bique bci co mz) (2 replies)

Re: Block OS Detection Jan 25 2008 05:42PM
Ivan Arce (ivan arce coresecurity com) (1 replies)

Re: Block OS Detection Jan 25 2008 11:54PM
Danny Fullerton (dfullerton mantor org) (1 replies)

Re: Block OS Detection Feb 02 2008 01:12AM
Ivan Arce (ivan arce coresecurity com)

Re: Block OS Detection Sep 05 2007 12:46PM
vtlists wyae de

Re: Block OS Detection Sep 02 2007 09:32PM
sami seclist (sg seclists gmail com)

Re: Block OS Detection Sep 02 2007 02:19AM
Dotzero (dotzero gmail com)

Re: Block OS Detection Sep 01 2007 08:08AM
Gadi Evron (ge linuxbox org) (2 replies)

RE: Block OS Detection Sep 02 2007 07:02PM
Ofer Shezaf (OferS Breach com) (2 replies)

RE: Block OS Detection Sep 02 2007 09:07PM
Gadi Evron (ge linuxbox org)

RE: Block OS Detection Sep 02 2007 09:03PM
Gadi Evron (ge linuxbox org) (1 replies)

RE: Block OS Detection Sep 04 2007 06:45PM
Philippe Bogaerts (xxradar radarhack com)

Re: Block OS Detection Sep 01 2007 01:12PM
Jonathan Yu (jonathan i yu gmail com)

Hi there,

I am by no means an expert, but I believe that each TCP stack produces
a "unique" signature. Each operating system's stack behaves a certain
way and there are quirks based on the implementation, so I think that
you will still be able to fingerprint the operating system based on
those unless you do some sort of scrubbing (which would be pretty
difficult). Perhaps replacing the entire stack with something used by
a lot of people on different systems would give you the protection you
require?

Jonathan Yu

On 9/1/07, Gadi Evron <ge (at) linuxbox (dot) org [email concealed]> wrote:
> Not everything is good, but you can overwrite different packet values
> using.. a firewall for example.
>
> Just one thingie.
>
>
> On Fri, 31 Aug 2007, Attari Attari wrote:
>
> > Hello All:
> >
> > Is there a PRACTICAL solution from PRODUCTION
> > environments that can be used to block OS detection
> > from tools like NMAP? I googled and read some notes
> > but couldn't find a real world solution to blocking
> > Windows & Linux OS detection.
> >
> > I'm quite sure I'll get the right inputs here.
> >
> > Thank you.
> >
> > Attari
> >
> >
> > Unlimited freedom, unlimited storage. Get it now, on http://help.yahoo.com/l/in/yahoo/mail/yahoomail/tools/tools-08.html/
> >
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