full-disclosure - Re: OpenBSD has Open Backdoored Software Distribution

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Date: Thu, 23 Dec 2010 16:23:01 +1030
From: Graham Gower <graham.gower@...il.com>
To: The Sp3ctacle <sp3ctacle@...il.com>
Cc: full-disclosure@...ts.grok.org.uk
Subject: Re: OpenBSD has Open Backdoored Software
 Distribution - admitted by Theo

On 23 December 2010 13:54, The Sp3ctacle <sp3ctacle@...il.com> wrote:
> It shouldn't be that hard to bindiff the code compiled with with the
> shipped compiler with the code from a compiler that predates the
> latest backdoor shenanigans.  You could decompile the binary code and
> then ask a cryptographer to audit.

Even getting the code to build with a 10+ year old gcc would be a
massive undertaking. And if you did that, I daresay the bindiff would
be meaningless - 10 years of code generation improvements, not to
mention OpenBSD moved from a.out to elf somewhere in there.

-Graham

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