FreeBSD 7.1 and BIND exploit

Clifton Royston cliftonr at lava.net
Tue Jul 22 17:03:51 UTC 2008


On Tue, Jul 22, 2008 at 09:37:14AM -0700, Doug Barton wrote:
> Clifton Royston wrote:
> >  I also think that modular design of security-sensitive tools is the
> >way to go, with his DNS tools as with Postfix.
> 
> Dan didn't write postfix, he wrote qmail.

  I know, but I think qmail sucks.  Wietse didn't write a DNS server
or I'd probably be using that. :-)

> If you're interested in a resolver-only solution (and that is not a 
> bad way to go) then you should evaluate dns/unbound. It is a 
> lightweight resolver-only server that has a good security model and 
> already implements query port randomization. It also has the advantage 
> of being maintained, and compliant to 21st Century DNS standards 
> including DNSSEC (which, btw, is the real solution to the response 
> forgery problem, it just can't be deployed universally before 8/5).

  Sounds interesting; is it a caching resolver? 

  I'm not totally convinced DNSSEC would solve everything (though it
would solve the current vulnerability) but I'm not sure I follow the
arguments pro and con.

  -- Clifton

-- 
    Clifton Royston  --  cliftonr at iandicomputing.com / cliftonr at lava.net
       President  - I and I Computing * http://www.iandicomputing.com/
 Custom programming, network design, systems and network consulting services


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