Exploit for DNS Cache Poisoning - RELEASED

Jared Mauch jared at puck.nether.net
Wed Jul 23 22:33:30 CDT 2008


On Wed, Jul 23, 2008 at 11:01:11PM -0400, Patrick W. Gilmore wrote:
>> https://www.paypal.com/
>
> That did not even occur to me.
>
> Anyone have a foolproof way to get grandma to always put "https://" in  
> front of "www"?
>
> Seriously, I was explaining the problem to someone saying "never click  
> 'OK'" when this e-mail came in and I realized how silly I was being.

	The problem is there is no perfect solution to these challenges
that the industry faces.

	The enhanced SSL certs and browser magic, eg:
www.paypal.com w/ Firefox3 gives a nice green "happy" bar.

	If you don't invest in these, or if there is a lack of user
education around these issues it's just one big Pharming pool.

	I talked to some govvies today and made what I believe is
the clear case when it comes to "Doing the right thing(tm)".  My
case was that the industry would do the right thing as a whole.
There would be stragglers, but the risk of doing nothing is too
high.

	If your nameservers have not been upgraded or you did
not enable the proper flags, eg: dnssec-enable and/or dnssec-validation
as applicable, I hope you will take another look.

	- Jared

-- 
Jared Mauch  | pgp key available via finger from jared at puck.nether.net
clue++;      | http://puck.nether.net/~jared/  My statements are only mine.




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