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Bug#639744: Compromised certificates for *.google.com issued by DigiNotar Root CA



On dim., 2011-09-04 at 13:34 -0500, Raphael Geissert wrote:
> [Dropping CC on openssl maintainers, to reduce noise]
> 
> On Sunday 04 September 2011 10:35:16 Yves-Alexis Perez wrote:
> > On dim., 2011-09-04 at 01:37 -0500, Raphael Geissert wrote:
> > > On Saturday 03 September 2011 01:45:22 Mike Hommey wrote:
> > > > Looking at the patches, this really is:
> > > [...]
> > > 
> > > Ok, with the patches we got NSS covered, but we still need to do
> > > something for other users.
> > > 
> > > A first look at stuff we ship, this seems to be their current status:
> > > * NSS:
> > > ice* packages should be okay after the latest NSS update.
> > 
> > For other NSS users I guess they're ok? I've just checked in evolution
> > certificate store and there's no DigiNotar one, though I don't know if
> > evolution would prevent connection to an imap/pop/smtp server with a
> > relevant certificate.
> 
> Did you look for "Explicitly Disabled DigiNotar..."?

What do you mean?

> 
> > evolution uses gnutls for calendars (since it's http/https) and so is
> > protected through ca-certificates afaict?
> 
> Not really, since DigiNotar's CA is cross-signed by Entrust and it probably 
> won't know that that signature has been revoked, since GnuTLS doesn't support 
> OCSP.
> 
> That's the same sad story for everything else using GnuTLS and for many 
> OpenSSL users. OpenSSL does support OCSP, but applications rarely use it.

Damn.
> 
> > I've tried the tree websites given on this bug report but I don't know
> > if they still make sense:
> > 
> > https://www.diginotar.nl redirects to http://www.diginotar.nl/ (!!) but
> > as the redirect isn't prevented I guess chromium is ok with the
> > certificate.
> > 
> > https://sha2.diginotar.nl/ succeeds, chain of certification is:
> > 
> > CN = sha2.diginotar.nl
> > CN = DigiNotar PKIoverheid CA Organisatie - G2
> > CN = Staat der Nederlanden Organisatie CA - G2
> > CN = Staat der Nederlanden Root CA - G2 (chromium builtin).
> 
> From mozilla's bugzilla, these should also fail:
> https://www.nifpnet.nl/
> https://belastingbalie.eindhoven.nl/
> https://acceptation.cbpublications.ingcommercialbanking.com/
> 
> (disable online recovation check before testing, at least the last one)

None of them fail (the last one fails with revocation checking)

Cheers,
-- 
Yves-Alexis

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