===================================================================== CERT-Renater Note d'Information No. 2021/VULN533 _____________________________________________________________________ DATE : 13/10/2021 HARDWARE PLATFORM(S): / OPERATING SYSTEM(S): Systems running .NET Core, Visual Studio, Services de fédération Active Directory (AD FS), Hôte de la fenêtre de la console, HTTP.sys, Bibliothèque principale du Gestionnaire de fenêtrage Microsoft, Microsoft Dynamics, Microsoft Edge (basé sur Chromium), Microsoft Exchange Server, Composant Microsoft Graphics, Microsoft Intune, Microsoft Office Excel, Microsoft Office SharePoint, Microsoft Office Visio, Microsoft Office Word, Bibliothèque de codecs Microsoft Windows, Contrôle d’édition de texte enrichi, Rôle : Serveur DNS, Rôle : Serveur Windows Active Directory, Rôle : Serveur Windows AD FS, Rôle : Windows Hyper-V, System Center, Visual Studio, Windows AppContainer, Service de déploiement d’AppX de Windows, Pilote de filtre de liaison Windows, Pilote de mini-filtre de fichiers cloud Windows, Pilote Windows Common Log File System, Pont du Bureau Windows, Windows DirectX, Suivi d’événements pour Windows, Système de fichiers exFAT de Windows, Pilote Fastfat Windows, Windows Installer, Noyau Windows, Plateforme MSHTML Windows, Partage de proximité de Windows, Traduction d’adresses réseau (NAT) Windows, Composants du spouleur d’impression Windows, Runtime d’appel de procédure distante Windows, Contrôleur des espaces de stockage Windows, Windows TCP/IP, Formation de texte de Windows, Windows Win32K. ===================================================================== https://msrc.microsoft.com/update-guide/ https://msrc.microsoft.com/update-guide/releaseNote/2021-Oct https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-38624 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-33781 https://msrc.microsoft.com/update-guide/vulnerability/ADV990001 https://msrc.microsoft.com/update-guide/vulnerability/ADV200011 _____________________________________________________________________ ******************************************************************** Microsoft Security Update Summary for October 12, 2021 Issued: October 12, 2021 ******************************************************************** This summary lists security updates released for October 12, 2021. Complete information for the October 2021 security update release Can be found at . IMPORTANT ANNOUNCEMENT: In the coming months we will be moving to a new, more user-friendly and flexible system for delivering Microsoft Technical Security Notifications. Upcoming information about how you can sign up for and receive these Technical Security Notifications will be coming soon. Please note the following information regarding the security updates: * For information regarding enabling Windows 10, version 1909 features, please see Windows 10, version 1909 delivery options: https://techcommunity.microsoft.com/t5/Windows-IT-Pro-Blog/Windows-10- version-1909-delivery-options/ba-p/1002660. Note that these versions of Windows 10 share a common core operating system with an identical set of system files: 1903 and 1909; 2004, 20H2,and 21H1. They will also share the same security update KBs. * Windows 10 updates are cumulative. The monthly security release includes all security fixes for vulnerabilities that affect Windows 10, in addition to non-security updates. The updates are available via the Microsoft Update Catalog: https://catalog.update.microsoft.com/v7/site/Home.aspx. * For information on lifecycle and support dates for Windows 10 operating systems, please see the Windows Lifecycle Facts Sheet: https://support.microsoft.com/en-us/help/13853/windows- lifecycle-fact-sheet). * A list of the latest servicing stack updates for each operating system can be found in ADV990001: https://msrc.microsoft.com/update- guide/vulnerability/ADV990001. This list will be updated whenever a new servicing stack update is released. It is important to install the latest servicing stack update. * In addition to security changes for the vulnerabilities, updates include defense-in-depth updates to help improve security-related features. * Customers running Windows 7, Windows Server 2008 R2, or Windows Server 2008 need to purchase the Extended Security Update to continue receiving security updates. See https://support.microsoft.com/en-us/help/4522133/procedure-to- continue-receiving-security-updates for more information. * There is a change coming with regards to Servicing Stack Updates. Please see Simplifying SSUs for more information. Critical Security Updates ============================ Windows 10 for 32-bit Systems Windows 10 for x64-based Systems Windows 10 Version 1607 for 32-bit Systems Windows 10 Version 1607 for x64-based Systems Windows 10 Version 1809 for 32-bit Systems Windows 10 Version 1809 for ARM64-based Systems Windows 10 Version 1809 for x64-based Systems Windows 10 Version 1909 for 32-bit Systems Windows 10 Version 1909 for ARM64-based Systems Windows 10 Version 1909 for x64-based Systems Windows 10 Version 2004 for 32-bit Systems Windows 10 Version 2004 for ARM64-based Systems Windows 10 Version 2004 for x64-based Systems Windows 10 Version 20H2 for 32-bit Systems Windows 10 Version 20H2 for ARM64-based Systems Windows 10 Version 20H2 for x64-based Systems Windows 10 Version 21H1 for 32-bit Systems Windows 10 Version 21H1 for ARM64-based Systems Windows 10 Version 21H1 for x64-based Systems Windows 11 for ARM64-based Systems Windows 11 for x64-based Systems Windows 8.1 for 32-bit systems Windows 8.1 for x64-based systems Windows RT 8.1 Windows Server 2012 Windows Server 2012 (Server Core installation) Windows Server 2012 R2 Windows Server 2012 R2 (Server Core installation) Windows Server 2016 Windows Server 2016 (Server Core installation) Windows Server 2019 Windows Server 2019 (Server Core installation) Windows Server 2022 Windows Server 2022 (Server Core installation) Windows Server, version 2004 (Server Core installation) Windows Server, version 20H2 (Server Core Installation) Microsoft 365 Apps for Enterprise for 32-bit Systems Microsoft 365 Apps for Enterprise for 64-bit Systems Microsoft Excel 2013 RT Service Pack 1 Microsoft Excel 2013 Service Pack 1 (32-bit editions) Microsoft Excel 2013 Service Pack 1 (64-bit editions) Microsoft Excel 2016 (32-bit edition) Microsoft Excel 2016 (64-bit edition) Microsoft Office 2013 RT Service Pack 1 Microsoft Office 2013 Service Pack 1 (32-bit editions) Microsoft Office 2013 Service Pack 1 (64-bit editions) Microsoft Office 2016 (32-bit edition) Microsoft Office 2016 (64-bit edition) Microsoft Office 2019 for 32-bit editions Microsoft Office 2019 for 64-bit editions Microsoft Office 2019 for Mac Microsoft Office LTSC 2021 for 32-bit editions Microsoft Office LTSC 2021 for 64-bit editions Microsoft Office LTSC for Mac 2021 Microsoft Office Online Server Microsoft Office Web Apps Server 2013 Service Pack 1 Microsoft SharePoint Enterprise Server 2013 Service Pack 1 Microsoft SharePoint Enterprise Server 2016 Microsoft SharePoint Foundation 2013 Service Pack 1 Microsoft SharePoint Server 2019 Microsoft Word 2013 RT Service Pack 1 Microsoft Word 2013 Service Pack 1 (32-bit editions) Microsoft Word 2013 Service Pack 1 (64-bit editions) Microsoft Word 2016 (32-bit edition) Microsoft Word 2016 (64-bit edition) Important Security Updates ============================ Microsoft Visual Studio 2017 version 15.9 (includes 15.0 - 15.8) Microsoft Visual Studio 2019 version 16.11 (includes 16.0 - 16.10) Microsoft Visual Studio 2019 version 16.4 (includes 16.0 - 16.3) Microsoft Visual Studio 2019 version 16.7 (includes 16.0 - 16.6) Microsoft Visual Studio 2019 version 16.9 (includes 16.0 - 16.8) Microsoft Exchange Server 2013 Cumulative Update 23 Microsoft Exchange Server 2016 Cumulative Update 21 Microsoft Exchange Server 2016 Cumulative Update 22 Microsoft Exchange Server 2019 Cumulative Update 10 Microsoft Exchange Server 2019 Cumulative Update 11 Microsoft Dynamics 365 (on-premises) version 9.0 Microsoft Dynamics 365 (on-premises) version 9.1 Microsoft Dynamics 365 Customer Engagement V9.0 Microsoft Dynamics 365 Customer Engagement V9.1 System Center 2012 R2 Operations Manager System Center 2016 Operations Manager System Center 2019 Operations Manager Intune management extension .NET 5.0 Other Information ================= Recognize and avoid fraudulent email to Microsoft customers: ============================================================= If you receive an email message that claims to be distributing a Microsoft security update, it is a hoax that may contain malware or pointers to malicious websites. Microsoft does not distribute security updates via email. The Microsoft Security Response Center (MSRC) uses PGP to digitally sign all security notifications. However, PGP is not required for reading security notifications, reading security information, or installing security updates. You can obtain the MSRC public PGP key at . ******************************************************************** THE INFORMATION PROVIDED IN THIS MICROSOFT COMMUNICATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY. ******************************************************************** Microsoft respects your privacy. Please read our online Privacy Statement at . If you would prefer not to receive future technical security notification alerts by email from Microsoft and its family of companies please visit the following website to unsubscribe: . These settings will not affect any newsletters you've requested or any mandatory service communications that are considered part of certain Microsoft services. For legal Information, see: . This newsletter was sent by: Microsoft Corporation 1 Microsoft Way Redmond, Washington, USA 98052 _____________________________________________________________________ ************************************************************************************** Title: Microsoft Security Update Releases Issued: October 12, 2021 ************************************************************************************** Summary ======= The following CVEs have undergone a major revision increment: * CVE-2021-38624 * CVE-2021-33781 CVE-2021-38624 - Windows Key Storage Provider Security Feature Bypass Vulnerability - https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-38624 - Version 2.0 - Reason for Revision: The following revisions have been made: 1) To comprehensively address CVE-2021-38624, Microsoft has released the October 2021 Security Updates for all affected editions of Windows 10 Version 1809 and newer because these versions are also affected by CVE-2021-38624. 2) In the Security Updates table, Windows 11 for x64-based systems and Windows 11 for ARM64-based systems have been added as Windows 11 is also affected by this vulnerability. Microsoft strongly recommends that customers install the October updates to be fully protected from this vulnerability. Customers whose systems are configured to receive automatic updates do not need to take any further action. - Originally posted: September 14, 2021 - Updated: October 12, 2021 CVE-2021-33781 - Azure AD Security Feature Bypass Vulnerability - https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-33781 - Version 2.0 - Reason for Revision: In the Security Updates table, added all supported versions of Windows 10 Version 1607, Windows Server 2016, and Windows 11 because these versions of Windows 10, Windows Server, and Windows 11 are also affected by this vulnerability. Microsoft strongly recommends that customers running any of these versions install the updates to be fully protected from the vulnerability. Customers whose systems are configured to receive automatic updates do not need to take any further action. - Originally posted: July 13, 2021 - Updated: October 12, 2021 ************************************************************************************** Other Information ================= Recognize and avoid fraudulent email to Microsoft customers: ====================================================================================== If you receive an email message that claims to be distributing a Microsoft security update, it is a hoax that may contain malware or pointers to malicious websites. Microsoft does not distribute security updates via email. The Microsoft Security Response Center (MSRC) uses PGP to digitally sign all security notifications. However, PGP is not required for reading security notifications, reading security bulletins, or installing security updates. You can obtain the MSRC public PGP key at . ************************************************************************************** THE INFORMATION PROVIDED IN THIS MICROSOFT COMMUNICATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY. ************************************************************************************** Microsoft respects your privacy. Please read our online Privacy Statement at . If you would prefer not to receive future technical security notification alerts by email from Microsoft and its family of companies please visit the following website to unsubscribe: . These settings will not affect any newsletters you’ve requested or any mandatory service communications that are considered part of certain Microsoft services. For legal Information, see: . This newsletter was sent by: Microsoft Corporation 1 Microsoft Way Redmond, Washington, USA 98052 IMPORTANT ANNOUNCEMENT: In the coming months we will be moving to a new, more user-friendly and flexible system for delivering Microsoft Technical Security Notifications. Upcoming information about how you can sign up for and receive these Technical Security Notifications will be coming soon. If you would prefer not to receive future technical security notification alerts by email from Microsoft and its family of companies please visit the following website to unsubscribe: https://account.microsoft.com/profile/unsubscribe?CTID=0&ECID=SIN0EELzwbXZlkmUk0u9YhHW%2Bn%2Fk8utQTe9OLKIlbAE%3D&K=a8fd9b58-f7a4-4a68-80e9-c13170091259&CMID=null&D=637695874865511436&PID=18015&TID=adfd46f4-992a-45ec-935c-4c9bc4baf506 _____________________________________________________________________ ************************************************************************************** Title: Microsoft Security Advisory Notification Issued: October 12, 2021 ************************************************************************************** Security Advisories Released or Updated on October 12, 2021 ====================================================================================== * ADV990001 * ADV200011 ADV990001 - ADV990001 | Latest Servicing Stack Updates - https://msrc.microsoft.com/update-guide/vulnerability/ADV990001 - Reason for Revision: Advisory updated to announce new versions of Servicing Stack Updates are available. Please see the FAQ for details. - Originally posted: November 13, 2018 - Updated: October 12, 2021 - Version: 42.0 ADV200011 - ADV200011 | Microsoft Guidance for Addressing Security Feature Bypass in GRUB - https://msrc.microsoft.com/update-guide/vulnerability/ADV200011 - Reason for Revision: The following revisions have been made: 1) Updated FAQ to indicate that Microsoft will release an update to address this vulnerability in Spring of 2022. You can register for the security notifications mailer to be alerted when this update is available, and when content changes are made to this advisory. See Microsoft Technical Security Notifications. 2) In the Security Updates table, added all supported editions of the following versions of Windows and Windows Server, as they are affected by this vulnerability: Windows 10 version 20H2, Windows 10 version 21H1, Windows 11, Windows Server, version 20H2 (Server Core Installation), and Windows Server 2022. 3) In the Executive Summary, corrected location of Mitigations section. - Originally posted: July 29, 2021 - Updated: October 12, 2021 - Version: 3.0 ====================================================================================== Other Information ================= Recognize and avoid fraudulent email to Microsoft customers: ====================================================================================== If you receive an email message that claims to be distributing a Microsoft security update, it is a hoax that may contain malware or pointers to malicious websites. Microsoft does not distribute security updates via email. The Microsoft Security Response Center (MSRC) uses PGP to digitally sign all security notifications. However, PGP is not required for reading security notifications, reading security bulletins, or installing security updates. You can obtain the MSRC public PGP key at . ************************************************************************************** THE INFORMATION PROVIDED IN THIS MICROSOFT COMMUNICATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY. ************************************************************************************** IMPORTANT ANNOUNCEMENT: In the coming months we will be moving to a new, more user-friendly and flexible system for delivering Microsoft Technical Security Notifications. Upcoming information about how you can sign up for and receive these Technical Security Notifications will be coming soon. Microsoft respects your privacy. Please read our online Privacy Statement at . If you would prefer not to receive future technical security notification alerts by email from Microsoft and its family of companies please visit the following website to unsubscribe: . These settings will not affect any newsletters you've requested or any mandatory service communications that are considered part of certain Microsoft services. For legal Information, see: . 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