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full-disclosure-uk: Re: [Full-disclosure] Emergency DNS Patch St

Re: [Full-disclosure] Emergency DNS Patch Still Vulnerable, Proves Russian Physicist

From: Paul Schmehl <pschmehl_lists_at_nospam>
Date: Sun Aug 10 2008 - 17:51:48 GMT
To: full-disclosure@lists.grok.org.uk


--On Sunday, August 10, 2008 12:25 AM -0400 Valdis.Kletnieks@vt.edu wrote:

> On Sat, 09 Aug 2008 20:59:15 BST, n3td3v said:
>> Reports coming out of blog land and onto n3td3v - Google Groups:
>>
>> Emergency DNS Patch Still Vulnerable, Proves Russian Physicist
>
> *yawn*. It was already *known* that even after patching, the
> vulnerability was still there. All the port-randomization stuff did was
> make it an order of 64K or so harder to exploit. That's why DNSSEC was
> recommended as the *real* fix for this problem.
>

The Russian scientist's proof was a 10 hour sustained attack involving 130,000 queries and 4-5k spoofed responses per query. Surely even n3td3v would notice more than 520,000,000 dns packets coming in?

Paul Schmehl
As if it wasn't already obvious,
my opinions are my own and not
those of my employer.



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