Full Disclosure: Re: Dumb question: Is Windows box behind a router safe ?

["G. D. Fuego" <gdfuego () gmail com>]

On Sep 22, 2009, at 3:18 PM, john s <rwnin.security () gmail com> wrote:

> On Tue, Sep 22, 2009 at 2:01 PM, G. D. Fuego <gdfuego () gmail com>  
> wrote:
> > On Sep 22, 2009, at 2:29 PM, Steven Anders <anderstev () gmail com>  
> > wrote:
> > > I have always thought that having a computer behind the router
> > > (since router has firewall) is generally safe, but I would love to
> > > hear insights or thoughts.
> > Nope.  A firewall should protect you against inbound connection
> > attempts only.
> A well configured firewall segregates and monitors ingress and egress
> traffic on a network segment.  Controlling outbound connectivity
> doesn't stop internal host app-level exploitation, but it can mitigate
> post-exploit damages and can also possibly provide an alert to the
> compromise...
How many home users do you know with egress filtering enabled?

_______________________________________________
Full-Disclosure - We believe in it.
Charter: http://lists.grok.org.uk/full-disclosure-charter.html
Hosted and sponsored by Secunia - http://secunia.com/