full-disclosure - Re: Ubuntu: reseed(8), random.org, and HTTP request

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Date: Wed, 6 Jul 2011 12:36:34 +0200
From: Jonathan Le Vigouroux <jonathan.levigouroux@...il.com>
To: noloader@...il.com
Cc: BugTraq <bugtraq@...urityfocus.com>,
	Full Disclosure <full-disclosure@...ts.grok.org.uk>
Subject: Re: Ubuntu: reseed(8), random.org,
	and HTTP request

Can you develop a bit about the:
> you're surprised?
>  [you must be new around here!]

I'm new here, and I'd like the reason(s) why you said that.

I don't mean to start a useless and finger-pointing debate, I just wanna be
put up to speed, that's all.

On Wed, Jul 6, 2011 at 9:44 AM, Jeffrey Walton <noloader@...il.com> wrote:

> On Wed, Jul 6, 2011 at 3:23 AM, coderman <coderman@...il.com> wrote:
> > On Tue, Jul 5, 2011 at 9:04 PM, Jeffrey Walton <noloader@...il.com>
> wrote:
> >> Ubuntu's reseed(8) can be used to seed the PRNG state of a host. The
> >> script is run when the package installed, and anytime su executes the
> >> script.
> >
> > ... someone thought this was a good idea.
> >  [an entropy pool remotely biased by MitM attacker, maybe?]
> :)
>
> >> reseed(8) performs a unsecured HTTP request to random.org for its
> >> bits, despite random.org offering HTTPS services.
> >
> > https doesn't help if your host entropy pool is poorly seeded.
> >  [SSL/TLS needs entropy for authenticity/privacy.]
> >
> >
> >> The Ubuntu Security Team took no interest when contacted by email (no
> >> reply); the point of contact listed in the man pages took no interest
> >> when contacted by email (no reply); and a launcher bug report was not
> >> acted upon (
> https://bugs.launchpad.net/ubuntu/+source/reseed/+bug/804594).
> >
> > you're surprised?
> Hardly - listed for completeness.
>
> >  [you must be new around here!]
>
> Jeff
>
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-- 
Cordialement,
Jonathan Le Vigouroux

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Full-Disclosure - We believe in it.
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