check before: 2023-07-25
Product:
Office 365 general
Platform:
World tenant, Windows Desktop, Online
Status:
Change type:
Admin impact
Links:
Details:
The release of the July 11, 2023 security updates for Windows starts the Second Deployment Phase in KB5025885: How to manage the Windows Boot Manager revocations for Secure Boot changes associated with CVE-2023-24932. KB5025885 contains the manual steps to verify your environment is ready for the changes and steps to enable the security hardening changes to protect against vulnerabilities tracked by CVE-2023-24932 that can bypass the Secure Boot security feature using the BlackLotus UEFI bootkit.
Change Category:
XXXXXXX ...
Scope:
XXXXXXX ...
Release Phase:
Created:
2023-07-12
updated:
2023-07-15
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changes*
| Date | Property | old | new |
| 2023-07-15 | MC Messages | The release of the July 11, 2023 security updates for Windows starts the Second Deployment Phase in KB5025885: How to manage the Windows Boot Manager revocations for Secure Boot changes associated with CVE-2023-24932. KB5025885 contains the manual steps to verify your environment is ready for the changes and steps to enable the security hardening changes to protect against vulnerabilities tracked by CVE-2023-24932 that can bypass the Secure Boot security feature using the BlackLotus UEFI bootkit.
The Second Deployment Phase in updates for Windows released July 11, 2023 and later add the following: Allow easier, automated deployment of the revocation files (Code Integrity Boot policy and Secure Boot disallow list (DBX)). New Event Log events will be available to report whether revocation deployment was successful or not. SafeOS dynamic update package for Window Recovery Environment (WinRE). When will this happen: Updates released July 11, 2023 and later start the Second Deployment Phase, containing the additional Event Log events to aid in getting your environment ready to enable protections required to address CVE-2023-24932. The security hardening for CVE-2023-24932 will be done in phases, as steps must be taken to prevent issues on your organization's devices when the revocations are applied/enabled. The security hardening changes to protect against vulnerabilities tracked by CVE-2023-24932 have been in updates released May 9, 2023 and later. | The release of the July 11, 2023 security updates for Windows starts the Second Deployment Phase in KB5025885: How to manage the Windows Boot Manager revocations for Secure Boot changes associated with CVE-2023-24932. KB5025885 contains the manual steps to verify your environment is ready for the changes and steps to enable the security hardening changes to protect against vulnerabilities tracked by CVE-2023-24932 that can bypass the Secure Boot security feature using the BlackLotus UEFI bootkit. |
| 2023-07-15 | MC How Affect | hat you need to do to prepare:
For information on how to enable the revocations and what is required before you should enable the revocations, see KB5025885: How to manage the Windows Boot Manager revocations for Secure Boot changes associated with CVE-2023-24932. | |
| 2023-07-15 | MC prepare | For information on how to enable the revocations and what is required before you should enable the revocations, see KB5025885: How to manage the Windows Boot Manager revocations for Secure Boot changes associated with CVE-2023-24932.
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-24932 https://support.microsoft.com/help/5025885 | https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-24932
https://support.microsoft.com/help/5025885 |
*starting April 2022
Last updated 2 months ago
