(Mis)-Issuance on CAA Timeout in DNSSEC signed zone

2017-09-12 Thread Quirin Scheitle via dev-security-policy
Hi, inspired by the ballot paragraph [1], I set up a domain that is fully DNSSEC signed [2], but does not reply to CAA queries (timeout). I could obtain certificates for this domain from Buypass and Startcom [3]. Other CAs (RapidSSL, GeoTrust, LetsEncrypt) have refused to issue, and GoDaddy an

RE: (Mis)-Issuance on CAA Timeout in DNSSEC signed zone

2017-09-12 Thread Inigo Barreira via dev-security-policy
Hi Quirin, I was going to reply to your email after investigating what happened, but since you´ve posted here, I can share it. I think most of the CAs are strugling with the DNSSEC interpretation or how to solve some of the issues. In our case, I can tell the following: The DNSSEC checking is

RE: (Mis)-Issuance on CAA Timeout in DNSSEC signed zone

2017-09-12 Thread Mads Egil Henriksveen via dev-security-policy
Hi Buypass received the problem report at 2017-09-12 00:06 and started investigating early this morning. After investigating what happened we identified an error in our system solution when we have a CAA RR lookup failure. In this case, the DNS CAA RR lookup timed out several times and we mis

Re: (Mis)-Issuance on CAA Timeout in DNSSEC signed zone

2017-09-12 Thread Nick Lamb via dev-security-policy
On Tuesday, 12 September 2017 10:38:56 UTC+1, Inigo Barreira wrote: > Futhermore, according to the logs, at the time of checking for a CAA record, > there was none. The lookup was succesful and hence allowed the issuance. Given that this contradicts the facts alleged in Quirin's tests and the f

Re: CAA Certificate Problem Report

2017-09-12 Thread Gervase Markham via dev-security-policy
On 11/09/17 22:28, Jeremy Rowley wrote: > I would support that. I can't recall why it's in there. As the drafter of the section :-), my intent was to make it so that if a site owner were concerned about the possibility that their CAA record or DNS could be spoofed, they could use DNSSEC to solve

RE: (Mis)-Issuance on CAA Timeout in DNSSEC signed zone

2017-09-12 Thread Inigo Barreira via dev-security-policy
Ok, let me investigate this further, maybe I didn´t catch it rightly. For the record, the certificate was revoked Best regards Iñigo Barreira CEO StartCom CA Limited -Original Message- From: dev-security-policy [mailto:dev-security-policy-bounces+inigo=startcomca@lists.mozilla.org]

Fwd: New Version Notification for draft-belyavskiy-certificate-limitation-policy-04.txt

2017-09-12 Thread Dmitry Belyavsky via dev-security-policy
Hello, Here is the new version of the draft updated according to the discussion on mozilla-dev-security list. -- Forwarded message -- From: Date: Tue, Sep 12, 2017 at 3:55 PM Subject: New Version Notification for draft-belyavskiy-certificate-l imitation-policy-04.txt To: Dmitry B

RE: (Mis)-Issuance on CAA Timeout in DNSSEC signed zone

2017-09-12 Thread Inigo Barreira via dev-security-policy
Hi all, We´ve checked logs and still don´t have a final conclussion but some clues about it. There were 2 attempts to request a cert for crossbear.org, the first one was 10 minutes before and was rejected because of timeout but the second, the one issued, permitted the issuance. # 1st request fo

Incident Report - CAA misissuance (was Re: Lack of CAA checking at Comodo)

2017-09-12 Thread Rob Stradling via dev-security-policy
On 11/09/17 15:30, Rob Stradling via dev-security-policy wrote: Hi Hanno.  Thanks for reporting this to us.  We acknowledge the problem, and as I mentioned at [1], we took steps to address it this morning. We will follow-up with an incident report ASAP. INCIDENT REPORT We received two Proble

Re: (Mis)-Issuance on CAA Timeout in DNSSEC signed zone

2017-09-12 Thread Quirin Scheitle via dev-security-policy
Hi all, Thank you for the replies. I am glad that there is agreement these certificates should not have been issued. I am confident that the test behaved correctly, the last edit on the zone file was on Aug 31 17:24, and it reads: crossbear.org. 0 CAA 0 issue ";" So even

Re: CAs not compliant with CAA CP/CPS requirement

2017-09-12 Thread identrust--- via dev-security-policy
On Friday, September 8, 2017 at 3:25:20 PM UTC-4, Andrew Ayer wrote: > The BRs state: > > "Effective as of 8 September 2017, section 4.2 of a CA's Certificate > Policy and/or Certification Practice Statement (section 4.1 for CAs > still conforming to RFC 2527) SHALL state the CA's policy or practi