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Re: TLS servers with overbroad certificates may mishandle diverted connections
From: Jeffrey Walton <noloader () gmail com>
Date: Mon, 14 Mar 2011 10:57:34 -0400

On Mon, Mar 14, 2011 at 6:43 AM, coderman <coderman () gmail com> wrote:
On Sun, Mar 13, 2011 at 7:31 PM, Matt McCutchen <matt () mattmccutchen net> wrote:
If I make a TLS connection to example.com, a MITM attacker can divert
the connection to any server that bears a certificate valid for
example.com, ... especially likely to arise with wildcard certificates.
 I plan to release an automated testing
tool, but I decided to go ahead and publicize the issue first.


p.s. marsh ray: wildcard certs are a useful tool when properly applied.
(though i admit most won't use them properly. par for the crypto course...)
Its always nice when the reception's machine in the lobby is trusted
to act as a web server and serve content.

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