full-disclosure - Re: [FD] Legitimacy of new Heartbleed exploit?

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Message-ID: <CAA9gXs8ZTM+YA1wWZvVCHUX=xJuBGSzJ3uwwhtAfZepBWixuKA@mail.gmail.com>
Date: Fri, 25 Apr 2014 15:22:30 -0400
From: Bennett Todd <bet@...ul.net>
To: Dillon Korman <me@...lonkorman.com>
Cc: fulldisclosure@...lists.org
Subject: Re: [FD] Legitimacy of new Heartbleed exploit?

On Fri, Apr 25, 2014 at 2:18 PM, Dillon Korman <me@...lonkorman.com> wrote:
> Saw a link to this:
> http://pastebin.com/qPxR9BRv

Fun!

> There is no actual exploit code in there since they insist of keeping it
private.

It'd be a lot less funny if they didn't keep it private. They claim to have
found a buffer overflow in the handling of the DOPENSSL_NO_HEARTBEATS
variable; since that's in the C Preprocessor, that's a rather extraordinary
claim.

> Do you think there really is a working exploit on new versions of OpenSSL?

Absolutely! Ask again in a year; if, say, Theo's LibreTLS "flensing" has
gotten to fly, and the Linux Foundation's attempt to fund maintenance of
critical infrastructure has had a little time to work.

But the TLS protocol itself, which must be replaced in every browser, is
designed first and foremost to guarantee that no-one can publish content
securely unless they've paid a tithe to a certificate authority; presumably
someone, somewhere, confused "enriching numbers salesmen" with "improving
security. The fiscal security of Verisign and their friends is covered, the
rest of us need a different protocol.

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