[cabfpub] Ballot 221 v3: Two-Factor Authentication and Password Improvements

Patrick Tronnier Patrick.Tronnier at oati.net
Thu May 17 14:05:35 MST 2018

Thanks Eric.

I would also like to point out that WEBTRUST PRINCIPLES AND CRITERIA FOR CERTIFICATION AUTHORITIES –SSLBASELINE WITH NETWORK SECURITY Version 2.3, which was updated in February 2018, (http://www.webtrust.org/principles-and-criteria/docs/item85437.PDF) requires passwords to be changed every 3 months.  Hopefully webTrust will adjust to the NIST guidelines also.

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With kind regards,

Patrick Tronnier
Principal Security Architect &
Sr. Director of Quality Assurance & Customer Support
Phone: 763.201.2000
Direct Line: 763.201.2052
Open Access Technology International, Inc.
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From: Eric Mill [mailto:eric.mill at gsa.gov]
Sent: Thursday, May 17, 2018 10:43 AM
To: Geoff Keating <geoffk at apple.com>; CA/Browser Forum Public Discussion List <public at cabforum.org>
Cc: Patrick Tronnier <Patrick.Tronnier at oati.net>
Subject: Re: [cabfpub] Ballot 221 v3: Two-Factor Authentication and Password Improvements

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FedRAMP has published guidance about the new NIST password/identity guidelines:

They note that the formal baseline is still not updated, but encourage folks to follow NIST's new guidance regardless:

NOTE: At the time of this document’s publication, FedRAMP Moderate and High controls IA-5 (g)
and IA-5 (1) (a,d) are known to be more restrictive than the new password requirements in 800-
63B, AAL2 and AAL3 respectively. FedRAMP recommends Agency AOs accept compliance with
NIST’s guidance that is most up-to-date and consistent with current cyber security threats. This
may be done using an implementation status of “Alternative Implementation.”

I also confirmed with the FedRAMP program that the baseline is expected to be updated to match NIST's SP 800-63, and thus avoid the need for any special acceptance. But the point is that FedRAMP is not an obstacle to dropping password rotation -- they are expecting service providers to follow NIST's guidance and drop it.

-- Eric

On Tue, May 15, 2018 at 6:48 PM, Geoff Keating via Public <public at cabforum.org<mailto:public at cabforum.org>> wrote:

> On May 15, 2018, at 8:37 AM, Patrick Tronnier via Public <public at cabforum.org<mailto:public at cabforum.org>> wrote:
> I want to make it clear that OATI agrees with the minimum 2 year password period as the more secure route. It is FedRAMP and other standards which don’t. J

I've been looking at FedRAMP, because I was surprised they'd be putting out guidelines that conflict with NIST guidelines, and I can't find this requirement; for the 'high security controls' (https://www.fedramp.gov/assets/resources/documents/FedRAMP_High_Security_Controls.xlsx), it does require you have a minimum and maximum password lifetime in IA-05(1)(d), but it says the actual limits are organization-defined, so you can ask the organization to set the maximum lifetime to, say, 3 years.

Public mailing list
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Eric Mill
Senior Advisor, Technology Transformation Services
Federal Acquisition Service, GSA
eric.mill at gsa.gov<mailto:eric.mill at gsa.gov>, +1-617-314-0966
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