Multiple DNS implementations vulnerable to cache poisoning
simonw at zynet.net
Wed Jul 9 13:38:38 UTC 2008
On Wednesday 09 July 2008 14:16:53 Jay R. Ashworth wrote:
> On Wed, Jul 09, 2008 at 04:39:49AM -0400, Jean-Fran?ois Mezei wrote:
> > My DNS server made the various DNS requests from the same port and is
> > thus vulnerable. (VMS TCPIP Services so no patches expected).
> Well, yes, but unless I've badly misunderstood the situation, all
> that's necessary to mitigate this bug is to interpose a non-buggy
> recursive resolver between the broken machine and the Internet at
> large, right?
He said "DNS server", which you wouldn't want to point at a correct named,
because that would be forwarding, and forwarding has its own security issues.
I've already dragged a name server here back to a supported OS version today
because of this, don't see why others should escape ;)
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