Full Disclosure: Re: Ubuntu: reseed(8), random.org, and HTTP request

[Jeffrey Walton <noloader () gmail com>]

On Wed, Jul 6, 2011 at 3:23 AM, coderman <coderman () gmail com> wrote:
> On Tue, Jul 5, 2011 at 9:04 PM, Jeffrey Walton <noloader () gmail 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

_______________________________________________
Full-Disclosure - We believe in it.
Charter: http://lists.grok.org.uk/full-disclosure-charter.html
Hosted and sponsored by Secunia - http://secunia.com/