From: gimeshell@web.de
Date: Fri Feb 17 2006 - 03:12:10 EST
On Tue, 24 Jan 2006 10:56:34 +0100
Joachim Schipper <j.schipper@math.uu.nl> wrote:
> On Mon, Jan 23, 2006 at 10:44:52PM +0100, poplix wrote:
> > Hi there,
> >
> > I wish to propose an alternative to port knoking that uses the
> > native OpenBSD's pf code only. The idea is to use the pf's passive
> > os fingerprinter to authenticate initial SYN packets.
> > With a tool (or kernel patch) able to rewrite packets header is
> > possible to use a specific sequence of header fields as a key to
> > validate packets.
>
> This is an interesting - albeit not exactly new - idea, but it has the
> very real disadvantage over port knocking that it requires priviliges
> (typically root) on the connecting host.
>
I'm fairly new to network security so i'm
wondering what's the problem using root priviliges to connect to server?
Do you mean, this is a general security problem or simply a client-side
disadvantage?
Do you think, running such a packet rewriter on client-side opens new
doors for attackers and reduces client-side security thus?
regards
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