[14328] in bugtraq

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Re: The out-of-domain NS registration attack

daemon@ATHENA.MIT.EDU (David Terrell)
Fri Mar 17 06:22:36 2000

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Message-Id:  <20000314180849.A10541@pianosa.catch22.org>
Date:         Tue, 14 Mar 2000 18:08:49 -0800
Reply-To: David Terrell <dbt@meat.net>
From: David Terrell <dbt@MEAT.NET>
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To: BUGTRAQ@SECURITYFOCUS.COM
In-Reply-To:  <20000314014512.9413.qmail@cr.yp.to>; from djb@CR.YP.TO on Tue,
              Mar 14, 2000 at 01:45:12AM -0000

On Tue, Mar 14, 2000 at 01:45:12AM -0000, D. J. Bernstein wrote:
> The attacker then registers a new domain with NSI, using ns1.jsnet.com
> as the domain's server name, but his own IP address for ns1.jsnet.com:
>
>    zerosecurity.com NS ns1.jsnet.com
>    ns1.jsnet.com A 5.6.7.8

Have you verified this is possible?  The last time I checked, NSI
would only allow new host registration from the appropriate contact
of the domain the host is in.

--
David Terrell   | p = "you are nasty"          q = "my first name is Janet"
Nebcorp PM      | r = "my first name is baby"  s = "My name is Miss Jackson"
dbt@meat.net    | (!r -> q) & (p -> s)        - Braverman's Third Lemma
wwn.nebcorp.com | !r & (!p -> q) & (p -> s)   - Libor's Corrolary

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