full-disclosure - Re: FD / lists.grok.org

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Date: Mon, 05 Jan 2009 14:46:42 -0500
From: Valdis.Kletnieks@...edu
To: Tim <tim-security@...tinelchicken.org>
Cc: full-disclosure@...ts.grok.org.uk
Subject: Re: FD / lists.grok.org - bad SSL cert

On Mon, 05 Jan 2009 11:25:58 PST, Tim said:
> Uh, no, actually CAs provide some weak assurance that the certificate is
> the real one and associated with that server.  A self-signed one
> provides none.  If you can't, in some way, authenticate the certificate
> then SSL is not any better than sending data plain text.

It's *slightly* better, in that it guards against passive sniffing attacks
on the data in transit. You're right that it doesn't guard against an
active MITM attack.

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