CIS Microsoft Windows 10 Enterprise Release 1909 Benchmark
Rationale:
In February 2015, Microsoft released a new control mechanism to mitigate a security risk in Group Policy as part of the MS15-011 / MSKB 3000483 security update. This mechanism requires both the installation of the new security update and also the deployment of specific group policy settings to all computers on the domain from Windows Vista / Server 2008 (non-R2) or newer (the associated security patch to enable this feature was not released for Server 2003). A new group policy template ( NetworkProvider.admx/adml ) was also provided with the security update.
Once the new GPO template is in place, the following are the minimum requirements to remediate the Group Policy security risk:
\\*\NETLOGON RequireMutualAuthentication=1, RequireIntegrity=1
\\*\SYSVOL RequireMutualAuthentication=1, RequireIntegrity=1
Note: A reboot may be required after the setting is applied to a client machine to access the above paths.
Additional guidance on the deployment of this security setting is available from the Microsoft Premier Field Engineering (PFE) Platforms TechNet Blog here: Guidance on Deployment of MS15-011 and MS15-014.
Audit:
Navigate to the UI Path articulated in the Remediation section and confirm it is set as prescribed. This group policy setting is backed by the following registry locations:
HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\NetworkProvider\Harden edPaths:\\*\NETLOGON HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\NetworkProvider\Harden edPaths:\\*\SYSVOL
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