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Date:      Wed, 15 May 2002 23:53:18 -0700
From:      David Schultz <dschultz@uclink.Berkeley.EDU>
To:        Poul-Henning Kamp <phk@critter.freebsd.dk>
Cc:        Terry Lambert <tlambert2@mindspring.com>, Matthew Emmerton <matt@gsicomp.on.ca>, freebsd-hackers@FreeBSD.ORG
Subject:   Re: national security backdoor in FreeBSD.
Message-ID:  <20020515235318.A59387@HAL9000.wox.org>
In-Reply-To: <30546.1021526684@critter.freebsd.dk>; from phk@critter.freebsd.dk on Thu, May 16, 2002 at 07:24:44AM %2B0200
References:  <3CE33C1F.A547AE4D@mindspring.com> <30546.1021526684@critter.freebsd.dk>

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Thus spake Poul-Henning Kamp <phk@critter.freebsd.dk>:
> In message <3CE33C1F.A547AE4D@mindspring.com>, Terry Lambert writes:
> >Matthew Emmerton wrote:
> >> > There is a backdoor in all versions of FreeBSD that are not compiled
> >> > from source code within portmapper and telnetd.
> >> 
> >> Hmm.  Let's check out this logic.  The binaries that ship on the FreeBSD
> >> distros are compiled from source.  When I upgrade my system, I compile from
> >> source.  And the backdoor only exists in binaries that are not compiled from
> >> source.  So where do these binaries-with-no-source come from?  Oh, I know!
> >> Carnivore detects FreeBSD ISO downloads, and tells the Magic Lantern
> >> software on my ISP's servers to change the binaries inside the ISO images
> >> that I FTP.  Makes perfect sense!
> >
> >Bell Systems Technical Journal, July-August 1978, "On the Security
> >of UNIX.", D. M. Ritchie.
> >
> >They hacked the compiler to hack the passwd program when it was
> >being compiled, and also to hack the compiler to include hacks
> >to the compiler and the passwd program when the compiler itself
> >was being compiled.
> 
> Sigh.
> 
> Wrong reference.
> 
> That was from Brians ACM Turning award thankyou-presentation.

http://www.acm.org/classics/sep95/

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