MC403454 – Reminder: Removal of temporary mitigation in Windows updates will require compliant printing and scanning devices

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check before: 2022-08-04

Product:

SharePoint, Universal Print, Windows

Platform:

World tenant, Online

Status:

Change type:

Admin impact

Links:

Details:

As previously announced, Microsoft released hardening changes for CVE-2021-33764 in Windows updates starting on July 13, 2021. When these updates are installed on a domain controller (DC), smart card (PIV) authentication might cause print and scan failures. The affected devices are smart card authenticating printers, scanners, and multifunction devices that don’t support either Diffie-Hellman (DH) for key exchange during PKINIT Kerberos authentication or don’t advertise support for des-ede3-cbc ("triple DES”) during the Kerberos AS request.


A temporary mitigation, released in Windows Updates between July 29, 2021, and July 12, 2022, was made available for organizations that encountered this issue and couldn't bring devices into compliance as required for CVE-2021-33764. However, starting on July 21, 2022, this temporary mitigation will not be usable in security updates. The Windows July 2022 preview update will remove the temporary mitigation and will require compliant printing and scanning devices

When will this happen:


Refer to the below timeline to understand the progressive hardening coming:
July 21, 2022: Optional preview update released for Windows Server 2019 will remove temporary mitigation and will require compliant printing and scanning devices in your environment.
August 9, 2022: All updates released on this day or later will be unable to use the temporary mitigation. This applies to: Windows Server 2019, Windows Server 2016, Windows Server 2012 R2, Windows Server 2012, Windows Server 2008 R2 SP1, and Windows Server 2008 SP2.

Change Category:
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Scope:
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Release Phase:

Created:
2022-07-22

updated:
2022-08-27

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changes*

DatePropertyoldnew
2022-09-15MC prepareYou must have your devices updated and compliant with this hardening, or replaced by July 21, 2022, when the temporary mitigation will not be usable in security updates.

Additional information:


Review the below documentation
KB5005408: Smart card authentication might cause print and scan failures.
CVE-2021-33764: Windows Key Distribution Center Information Disclosure Vulnerability
RFC 4556 specification
ps://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-33764
ps://support.microsoft.com/topic/kb5005408-smart-card-authentication-might-cause-print-and-scan-failures-514f0bc5-ecde-4e5e-8c5a-2a776d7fb89
ps://www.ietf.org/rfc/rfc4556.tx
You must have your devices updated and compliant with this hardening, or replaced by July 21, 2022, when the temporary mitigation will not be usable in security updates.

Additional information:


Review the below documentation
KB5005408: Smart card authentication might cause print and scan failures.
CVE-2021-33764: Windows Key Distribution Center Information Disclosure Vulnerability
RFC 4556 specification
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-33764
https://support.microsoft.com/topic/kb5005408-smart-card-authentication-might-cause-print-and-scan-failures-514f0bc5-ecde-4e5e-8c5a-2a776d7fb89a
https://www.ietf.org/rfc/rfc4556.txt
2022-08-27MC prepareYou must have your devices updated and compliant with this hardening, or replaced by July 21, 2022, when the temporary mitigation will not be usable in security updates.

Additional information:


Review the below documentation
KB5005408: Smart card authentication might cause print and scan failures.
CVE-2021-33764: Windows Key Distribution Center Information Disclosure Vulnerability
RFC 4556 specification
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-33764
https://support.microsoft.com/topic/kb5005408-smart-card-authentication-might-cause-print-and-scan-failures-514f0bc5-ecde-4e5e-8c5a-2a776d7fb89a
https://www.ietf.org/rfc/rfc4556.txt
You must have your devices updated and compliant with this hardening, or replaced by July 21, 2022, when the temporary mitigation will not be usable in security updates.

Additional information:


Review the below documentation
KB5005408: Smart card authentication might cause print and scan failures.
CVE-2021-33764: Windows Key Distribution Center Information Disclosure Vulnerability
RFC 4556 specification
ps://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-33764
ps://support.microsoft.com/topic/kb5005408-smart-card-authentication-might-cause-print-and-scan-failures-514f0bc5-ecde-4e5e-8c5a-2a776d7fb89
ps://www.ietf.org/rfc/rfc4556.tx

*starting April 2022

Last updated 2 months ago

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