funsec mailing list archives

Re: Leaks in Patch for Web Security Hole


From: Valdis.Kletnieks () vt edu
Date: Sun, 10 Aug 2008 00:51:57 -0400

On Sat, 09 Aug 2008 10:29:23 EDT, "Richard M. Smith" said:

In a posting on his blog
<http://tservice.net.ru/%7Es0mbre/blog/devel/networking/dns/2008_08_08.html>
, the physicist, Evgeniy Polyakov, wrote that he had fooled the software
that serves as the Internet's telephone book into returning an incorrect
address in just 10 hours

Vixie said "11 seconds".  So the patch added a work factor of roughly 3,600,
rather than the 64K that *full* randomization would have added.  Or he just
got lucky and it happened to work in the first 5% of the attack...

But then, it was *known* that the patches merely made it harder to hit
the hole, and DNSSEC is needed to *totally* fix the issue.

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