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Date:      Mon, 17 Jul 2006 11:13:43 +0200
From:      Max Laier <max@love2party.net>
To:        freebsd-pf@freebsd.org
Cc:        freebsd-security@freebsd.org
Subject:   Re: Any ongoing effort to port /etc/rc.d/pf_boot, /etc/pf.boot.conf from NetBSD ?
Message-ID:  <200607171113.54110.max@love2party.net>
In-Reply-To: <86hd1ghc3i.fsf@tuha.clef.at>
References:  <44B7715E.8050906@suutari.iki.fi> <20060717023700.GF3240@insomnia.benzedrine.cx> <86hd1ghc3i.fsf@tuha.clef.at>

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[Replying to the latest message available]

Okay, now this is getting pretty pointless.  It started out pretty promissi=
ng=20
with an attempt to really investigate into a problem that might exist with=
=20
the way we boot up pf.  No-one has yet provided evidence that it does exist=
,=20
though.  What Daniel and others have suggested is, that interested parties=
=20
look at the boot process closely, identify possible windows of vulnarabilit=
y=20
and propose a *proper* fix in form of reorder of the boot process, an early=
=20
pf_boot or something else.

As more and more people are screaming for rope to hang themself with, I am=
=20
going to provide it.  As we have established, the "fix" is a three line=20
change in pf_ioctl.c and otherwise non-intrusive.  You will of course have =
to=20
rewrite your rulesets if you have a default to block policy, but since you=
=20
care about security, that's a little price to pay - right?

I would love to see somebody[tm] *really* looking into the boot process and=
=20
come up with a sollution if we do have a problem there.

Otherwise I will post a patch for PF_DEFAULT_BLOCK after a few days of=20
cool-off time, if people then still think it's a good idea then, I'll commi=
t=20
it.

Thanks.

=2D-=20
/"\  Best regards,                      | mlaier@freebsd.org
\ /  Max Laier                          | ICQ #67774661
 X   http://pf4freebsd.love2party.net/  | mlaier@EFnet
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