[Servercert-wg] Voting Ends Tomorrow: Ballot SC7: Update IP Address Validation Methods CAB Forum x

[Wayne Thayer]

Reminder: Voting ends Friday 2019-02-08 at 19:00 UTC on ballot SC7: Update
IP Address Validation Methods CAB Forum

On Fri, Feb 1, 2019 at 11:30 AM Wayne Thayer <wthayer at mozilla.com> wrote:

> Purpose of Ballot:
>
> Ballot 169 removed Method 11 ("Any Other Method") from 3.2.2.4 and
> replaced it with explicit validation methods, but it's sibling in 3.2.2.5
> item 4 is still in the Baseline Requirements.
>
> This ballot removes 3.2.2.5 item 4 and replaces it with an explicit list
> of IP validation methods.
>
> The intention is that, moving forward, IP validation methods will be
> handled in the same way as domain-name validation methods, and CAs that
> want to use new methods or variants of existing methods must bring them to
> the Forum for scrutiny, first.
>
> The following motion has been proposed by Wayne Thayer of Mozilla and
> endorsed by Doug Beattie of GlobalSign and Tim Hollebeek of DigiCert.
>
>
> -- MOTION BEGINS --
>
> This ballot modifies the “Baseline Requirements for the Issuance and
> Management of Publicly-Trusted Certificates” as follows, based on Version
> 1.6.2:
>
> Add the following to the table in section 1.2.2:
>
> Compliance: 2019-08-01; Section 3.2.2.5; Summary Description: CAs MUST
> follow revised validation requirements in section 3.2.2.5 and MUST keep a
> record of IP Address validation methods used.
>
>
> Add the following definitions to section 1.6.1:
>
> IP Address: A 32-bit or 128-bit label assigned to a device that uses the
> Internet Protocol for communication.
>
> IP Address Contact: The person(s) or entity(ies) registered with an IP
> Address Registration Authority as having the right to control how one or
> more IP Addresses are used.
>
> IP Address Registration Authority: The  Internet Assigned Numbers
> Authority (IANA) or a Regional Internet Registry (RIPE, APNIC, ARIN,
> AfriNIC, LACNIC).
>
>
> Replace Baseline Requirements section 3.2.2.5, in its entirety, with the
> following text:
> 3.2.2.5. Authentication for an IP Address
>
> This section defines the permitted processes and procedures for validating
> the Applicant’s ownership or control of an IP Address listed in a
> Certificate.
>
> The CA SHALL confirm that prior to issuance, the CA has validated each IP
> Address listed in the Certificate using at least one of the methods
> specified in this section.
>
> Completed validations of Applicant authority may be valid for the issuance
> of multiple Certificates over time. In all cases, the validation must have
> been initiated within the time period specified in the relevant requirement
> (such as Section 4.2.1 of this document) prior to Certificate issuance. For
> purposes of IP Address validation, the term Applicant includes the
> Applicant's Parent Company, Subsidiary Company, or Affiliate.
>
> After July 31, 2019, CAs SHALL maintain a record of which IP validation
> method, including the relevant BR version number, was used to validate
> every IP Address.
>
> Note: IP Addresses verified in accordance with this section 3.2.5 may be
> listed in Subscriber Certificates as defined in section 7.1.4.2 or in
> Subordinate CA Certificates via iPAddress in permittedSubtrees within the
> Name Constraints extension. CAs are not required to verify IP Addresses
> listed in Subordinate CA Certificates via iPAddress in excludedSubtrees in
> the Name Constraints extension prior to inclusion in the Subordinate CA
> Certificate.
>
> 3.2.2.5.1. Agreed-Upon Change to Website
>
> Confirming the Applicant's control over the requested IP Address by
> confirming the presence of a Request Token or Random Value contained in the
> content of a file or webpage in the form of a meta tag under the
> "/.well-known/pki-validation" directory, or another path registered with
> IANA for the purpose of validating control of IP Addresses, on the IP
> Address that is accessible by the CA via HTTP/HTTPS over an Authorized
> Port. The Request Token or Random Value MUST NOT appear in the request.
>
> If a Random Value is used, the CA SHALL provide a Random Value unique to
> the certificate request and SHALL not use the Random Value after the longer
> of (i) 30 days or (ii) if the Applicant submitted the certificate request,
> the timeframe permitted for reuse of validated information relevant to the
> certificate (such as in Section 4.2.1 of this document).
>
> 3.2.2.5.2. Email, Fax, SMS, or Postal Mail to IP Address Contact
>
> Confirming the Applicant's control over the IP Address  by sending a
> Random Value via email, fax, SMS, or postal mail and then receiving a
> confirming response utilizing the Random Value. The Random Value MUST be
> sent to an email address, fax/SMS number, or postal mail address identified
> as an IP Address Contact.
>
> Each email, fax, SMS, or postal mail MAY confirm control of multiple IP
> Addresses.
>
> The CA MAY send the email, fax, SMS, or postal mail identified under this
> section to more than one recipient provided that every recipient is
> identified by the IP Address Registration Authority as representing the IP
> Address Contact for every IP Address being verified using the email, fax,
> SMS, or postal mail.
>
> The Random Value SHALL be unique in each email, fax, SMS, or postal mail.
>
> The CA MAY resend the email, fax, SMS, or postal mail in its entirety,
> including re-use of the Random Value, provided that the communication's
> entire contents and recipient(s) remain unchanged.
>
> The Random Value SHALL remain valid for use in a confirming response for
> no more than 30 days from its creation. The CPS MAY specify a shorter
> validity period for Random Values, in which case the CA MUST follow its CPS.
>
> 3.2.2.5.3. Reverse Address Lookup
>
> Confirming the Applicant’s control over the IP Address by obtaining a
> Domain Name associated with the IP Address through a reverse-IP lookup on
> the IP Address and then verifying control over the FQDN using a method
> permitted under BR Section 3.2.2.4.
>
> 3.2.2.5.4. Any Other Method
>
> Using any other method of confirmation, including variations of the
> methods defined in BR Section 3.2.2.5, provided that the CA maintains
> documented evidence that the method of confirmation establishes that the
> Applicant has control over the IP Address to at least the same level of
> assurance as the methods previously described in version 1.6.2 of these
> Requirements.
>
> CAs SHALL NOT perform validations using this method after July 31, 2019.
> Completed validations using this method SHALL NOT be re-used for
> certificate issuance after July 31, 2019. Any certificate issued prior to
> August 1, 2019 containing an IP Address that was validated using any method
> that was permitted under the prior version of this section 3.2.2.5 MAY
> continue to be used without revalidation until such certificate naturally
> expires.
>
> 3.2.2.5.5. Phone Contact with IP Address Contact
>
> Confirming the Applicant's control over the IP Address by calling the IP
> Address Contact’s phone number and obtaining a response confirming the
> Applicant's request for validation of the IP Address. The CA MUST place the
> call to a phone number identified by the IP Address Registration Authority
> as the IP Address Contact. Each phone call SHALL be made to a single number.
>
> In the event that someone other than an IP Address Contact is reached, the
> CA MAY request to be transferred to the IP Address Contact.
>
> In the event of reaching voicemail, the CA may leave the Random Value and
> the IP Address(es) being validated.  The Random Value MUST be returned to
> the CA to approve the request.
>
> The Random Value SHALL remain valid for use in a confirming response for
> no more than 30 days from its creation. The CPS MAY specify a shorter
> validity period for Random Values.
>
> *3.2.2.5.6 ACME “http-01” method for IP Addresses*
>
> Confirming the Applicant's control over the IP Address by performing the
> procedure documented for an “http-01” challenge in draft 04 of “ACME IP
> Identifier Validation Extension,” available at
> https://tools.ietf.org/html/draft-ietf-acme-ip-04#section-4.
>
> *3.2.2.5.7 ACME “tls-alpn-01” method for IP Addresses*
>
> Confirming the Applicant's control over the IP Address by performing the
> procedure documented for a “tls-alpn-01” challenge in draft 04 of “ACME IP
> Identifier Validation Extension,” available at
> https://tools.ietf.org/html/draft-ietf-acme-ip-04#section-4.
>
> -- MOTION ENDS --
>
>
> *** WARNING ***: USE AT YOUR OWN RISK.  THE REDLINE BELOW IS NOT THE
> OFFICIAL VERSION OF THE CHANGES (CABF Bylaws, Section 2.4(a)):
>
> A comparison of the changes can be found at:
> https://github.com/wthayer/documents/compare/wthayer:master...Ballot-SC7
> <https://github.com/dougbeattie/documents/compare/master...dougbeattie:SC14---Phone-validation-updates>
>
> The procedure for approval of this ballot is as follows:
>
> Discussion (7+ days)
>
> Start Time: 2019-01-24 01:00 UTC
>
> End Time: Not before 2019-01-31 01:00 UTC
>
> Vote for approval (7 days)
>
> Start Time: 2019-02-01 19:00 UTC
>
> End Time: 2019-02-08 19:00 UTC
>
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