[cifs-protocol] [EXTERNAL] Protocol documentation for automatic rollover of expired passwords with UF_SMARTCARD_REQUIRED - TrackingID#2404240040010190

[Andrew Bartlett]

Thanks Kristian, that is must helpful. 
Can you clarify which parts of the AD DC calls
ResetSmartCardAccountPassword and under what circumstances?  Is it just
the KDC during PK-INIT AS-REQ processing?
Is there anything else that rotates these passwords?  The reason I ask
is that this being the only case would suggest that where the DC is not
the PDC, the PK-INIT AS-REQ processing must wait for the PDC before
continuing processing.  (We know the local case does, it gets the new
password for return in the PAC).
Finally, the doc needs some correction, the references to pwdLastSet
make not sense (it should always be in the past), I think a meta-
variable for the calculated password expiry is what is meant.
Thanks!
Andrew Bartlett
On Thu, 2024-04-25 at 21:41 +0000, Kristian Smith wrote:
> [Michael to Bcc]
> 
> 
> 
> 
> 
> Hi Andrew,
> 
> 
> 
> 
> 
> Thanks for reaching out with your question. The password-rolling
> attribute you're looking for is "msDS-
> ExpirePasswordsOnSmartCardOnlyAccounts" 
> 
> 
> 
> 
> 
> It can be found in the following docs:
> 
> [MS-SAMS] 3.3.5.7.2 Normative Specification
> 
> [MS-ADA2] 2.319 Attribute msDS-ExpirePasswordsOnSmartCardOnlyAccounts
> 
> 
> 
> 
> 
> To a lesser extent here as well: 
> 
> [MS-ADSC] 2.44 Class domainDNS
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> 
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> 
> 
> Let me know if this answers the question, or if there is anything
> that can be clarified.
> 
> 
> 
> 
> 
> Regards,
> Kristian Smith
> Support Escalation Engineer | Microsoft® Corporation
> Office phone: +1 425-421-4442
> Email:
> kristian.smith at microsoft.com
> 
> 
> 
> From: Michael Bowen <Mike.Bowen at microsoft.com>
> 
> Sent: Wednesday, April 24, 2024 10:39 AM
> 
> To: Andrew Bartlett <abartlet at samba.org>
> 
> Cc: cifs-protocol mailing list <cifs-protocol at lists.samba.org>;
> Microsoft Support <supportmail at microsoft.com>
> 
> Subject: Re: [EXTERNAL] Protocol documentation for automatic rollover
> of expired passwords with UF_SMARTCARD_REQUIRED -
> TrackingID#2404240040010190
>  
> 
> 
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>  [Case number in subject]
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>  [Casemail to cc]
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>  [Dochelp to bcc]
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>  
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>  Hi Andrew,
> 
> 
> 
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> 
> Thank you for your request. The case number 2404240040010190 has been
> created for this inquiry. One of our team members will follow up with
> you soon.
> 
> 
> 
> 
> 
> Best regards, 
> 
> Mike Bowen
> 
> Sr. Escalation Engineer - Microsoft® Corporation
>  
> 
> 
> 
> From: Andrew Bartlett <abartlet at samba.org>
> 
> Sent: Tuesday, April 23, 2024 5:52 PM
> 
> To: Interoperability Documentation Help <dochelp at microsoft.com>
> 
> Cc: cifs-protocol mailing list <cifs-protocol at lists.samba.org>
> 
> Subject: [EXTERNAL] Protocol documentation for automatic rollover of
> expired passwords with UF_SMARTCARD_REQUIRED
>  
> 
> 
> Kia Ora Dochelp!
> 
> 
> 
> I'm looking for any documentation as to the finer details of
> 
> 
> 
> > 
> > DCs can support automatic rolling of the NTLM and other password-
> > based secrets on a user account configured to require PKI
> > authentication. This configuration is also known as "Smart card
> > required for interactive logon"
> > 
> > 
> > 
> 
> 
> 
> from
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> 
> 
>  
> https://learn.microsoft.com/en-us/windows-server/identity/ad-ds/active-directory-functional-levels#windows-server-2016-domain-functional-level-features
> 
> 
> 
> I don't see any mention of this in MS-ADPS, but am not sure where
> next to check.
> 
> 
> 
> In particular, while I have reproduced the rollover for 'must change
> now', I'm wondering when the password otherwise rolls over, is it
> before the expiry (eg with the 'old password allowed time' grace of
> 60mins for example, or at the expiry?
> 
> 
> 
> Thanks,
> 
> 
> 
> Andrew Bartlett
> 
> 
> 
> 
> 
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