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WN22-SO-000240 Windows Server 2022 must be configured to prevent anonymous users from having the same permissions as the Everyone group.

DISA STIG library V2R11
All changes in this version
first version loaded CAT II

Maps to CM-6 via CCI-000366

Title

Windows Server 2022 must be configured to prevent anonymous users from having the same permissions as the Everyone group.

Control

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SYSTEM\CurrentControlSet\Control\Lsa\ Value Name: EveryoneIncludesAnonymous Value Type: REG_DWORD Value: 0x00000000 (0)

Discussion

Access by anonymous users must be restricted. If this setting is enabled, anonymous users have the same rights and permissions as the built-in Everyone group. Anonymous users must not have these permissions or rights.

Related controls

CCI-000366

Fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> Network access: Let Everyone permissions apply to anonymous users to "Disabled".