Vulnerability Development mailing list archives

Re: A code red that could bring down the net?


From: "Felix Harris" <felixh () netcomuk co uk>
Date: Tue, 24 Jul 2001 11:25:51 +0100

1) The Internet has a limited number of root name
servers.
I'm going to make a stab in the dark, but this also assumes that 
nameservers don't cache translations, and by nameservers I mean 
the ones on ISPs and localhosts around the world. This would 
mean that a DoS would have to operate until the cache expired, by 
which time the attacking hosts could have been filtered, or the root 
nameservers could have been kicked.

2) An application can easilly be created to perform a
DOS attack on these root servers.

As I've said previously, DDos wouldn't  work particularly well, 
because there's a lot of hosts to hit, and the root nameservers are 
fairly well maintained. The next suggestion would be just a typical 
memory leaky-thingy (I love technical terms) or something along 
those lines to kill the named. This is also fairly difficult as the 
primary nameservers run different nameds (as far as I know), and 
so would require multiple applications to be flawed. 

my first post, yay. 
--
Felix Harris (Felix-_@IRCNet)
felix () warlords net


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