Technically, the same issue could exist on the system. However, co.uk is
actually blocked as a valid approval address by our system. In-addr.arpa was
not blocked. 

Here's a status update:
1) We identified 3000 certificates where the scope was changed by validation
staff based on a WHOIS document. 
2) Of the 3,000, the only certificate we found where the scope was not set
to be the scope of the WHOIS document was the one reported by Cynthia. 

The next step is to look at why we didn't block in-addr.arpa as an eligible
scope. We generally pull from the PSL, so I need to find out why
in-addr.arpa was not blocked.

Thanks!
Jeremy

-----Original Message-----
From: dev-security-policy <dev-security-policy-boun...@lists.mozilla.org> On
Behalf Of Cynthia Revström via dev-security-policy
Sent: Saturday, March 2, 2019 1:46 AM
To: George Macon <george.ma...@gmail.com>
Cc: mozilla-dev-security-pol...@lists.mozilla.org
Subject: Re: Possible DigiCert in-addr.arpa Mis-issuance

On 2019-03-02 01:49, George Macon via dev-security-policy wrote:

> One specific question on this point: Why did the software permit 
> setting the approval scope to a public suffix (as defined by inclusion 
> on the public suffix list)? Could validation agent action set the 
> approval scope to some other two-label public suffix like co.uk?

I think this is highly unlikely seeing as this was a human error and unlike
in-addr.arpa, people might know about .co.uk.

- Cynthia

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