nanog mailing list archives

Re: Chinese root CA issues rogue/fake certificates


From: Royce Williams <royce () techsolvency com>
Date: Tue, 30 Aug 2016 21:11:52 -0800

On Tue, Aug 30, 2016 at 8:38 PM, Eric Kuhnke <eric.kuhnke () gmail com> wrote:

http://www.percya.com/2016/08/chinese-ca-wosign-faces-revocation.html

One of the largest Chinese root certificate authority WoSign issued many
fake certificates due to an vulnerability.  WoSign's free certificate
service allowed its users to get a certificate for the base domain if they
were able to prove control of a subdomain. This means that if you can
control a subdomain of a major website, say percy.github.io, you're able to
obtain a certificate by WoSign for github.io, taking control over the
entire domain.


And there is now strong circumstantial evidence that WoSign now owns -
or at least, directly controls - StartCom:

https://www.letsphish.org/?part=about

There are mixed signals of incompetence and deliberate action here.

Royce


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