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

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Message-ID: <CAH8yC8nDjU2z2gFbmOJBPowi9xw4iRE+3vMSpaDoMkdY+3aC2w@mail.gmail.com>
Date: Wed, 6 Jul 2011 06:53:31 -0400
From: Jeffrey Walton <noloader@...il.com>
To: Jonathan Le Vigouroux <jonathan.levigouroux@...il.com>
Cc: Full Disclosure <full-disclosure@...ts.grok.org.uk>,
	BugTraq <bugtraq@...urityfocus.com>
Subject: Re: Ubuntu: reseed(8), random.org,
	and HTTP request

On Wed, Jul 6, 2011 at 6:36 AM, Jonathan Le Vigouroux
<jonathan.levigouroux@...il.com> wrote:
> 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.
No flame war - coderman has some experience dealing with security and
cert teams. After some time, you'll see some of the more memorable
responses (other than no acknowledgement/no response). In the
meantime, check out the "Lamest Vendor Response" from the Pwnie
Awards: http://www.pwnies.com/.

Jeff

> 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!]

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