From: Mike Friedman (mikef_at_ack.berkeley.edu)
Date: Wed Sep 17 2003 - 10:12:42 PDT
On Wed Sep 17 09:36:59 2003, rossd_at_cns.me.berkeley.edu said:
> For those who haven't heard, Verisign mucked with their root servers by
> implementing a new system which redirects any non-existant domains or hosts
> that are not responding to their own servers and apparently did it with
> no more than an hour or two notification and no input from the Internet
> community.
>
> This has already be shown to break the following:
>
> Many anti-spam tools have broken as a result of nonexistent domains now
> appearing to exist. Passwords and other private information that are
> accidentally sent to the wrong URL or a nonresponsive URL will go through
> Verisign's servers SMTP (outgoing mail) is apparently listening on all
> nonexistent domains or nonresponsive hosts.
Ross,
With respect to one issue raised by VeriSign's reported action:
An IETF draft document released today discusses the pitfalls of servers
implementing default actions that bypass what otherwise might be seen
as normal 'errors', thereby potentially preventing client software from
handling exceptional conditions intelligently. The draft can be found here:
http://www.ietf.org/internet-drafts/draft-main-typo-wcard-00.txt
Of course the reported VeriSign action raises more significant questions, as
pointed out in the article to which you referred:
http://www.nuclearelephant.com/papers/verisign.html
Mike
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Mike Friedman System and Network Security
mikef_at_ack.Berkeley.EDU 2484 Shattuck Avenue
1-510-642-1410 University of California at Berkeley
http://ack.Berkeley.EDU/~mikef http://security.berkeley.edu
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