[FUGSPBR] OFF - The Security Flag in the IPv4 Header

[Sp0oKeR Labs]

 Rfc com data 1 de abril? Levar a serio ou zuera? =D!

                            []z!Sp0oKeR!

----- Original Message -----
From: "Antonio Torres" <antonio.torres em newspace.net.br>
To: "Grupo Brasileiro de Usuarios FreeBSD" <fugspbr em fugspbr.org>
Sent: Tuesday, April 01, 2003 12:08 PM
Subject: Re: [FUGSPBR] OFF - The Security Flag in the IPv4 Header


engraçado, ainda não bebi nada (alcoólico) hoje.

deixa eu ver se entendi: se eu quiser 'escrever' um programa de ataque,
digamos para quebrar um firewall, tenho que 'setar' esse bit para avisar o
firewall que meus pacotes *são* um ataque ??

É, talvez seja o elevado teor de sangue na minha corrente alcoólica......

Falando sério : de onde veio isso ??




> >
> > 3. Setting the Evil Bit
> >
> >    There are a number of ways in which the evil bit may be set.  Attack
> >    applications may use a suitable API to request that it be set.
> >    Systems that do not have other mechanisms MUST provide such an API;
> >    attack programs MUST use it.
> >
> >    Multi-level insecure operating systems may have special levels for
> >    attack programs; the evil bit MUST be set by default on packets
> >    emanating from programs running at such levels.  However, the system
> >    MAY provide an API to allow it to be cleared for non-malicious
> >    activity by users who normally engage in attack behavior.
> >


--
Antonio Torres
antonio.torres em newspace.net.br
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Version: 6.0.465 / Virus Database: 263 - Release Date: 25/3/2003

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