V-254468 | Windows Server 2022 must be configured to ...

Microsoft Windows Server 2022

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

STIG ID: WN22-SO-000240 | SRG: SRG-OS-000480-GPOS-00227 | Severity: Medium | CCI: CCI-000366 | Vulnerability ID: V-254468

Description

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.

Check

C-57953r849218_chk

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: EveryoneIncludesAnonymousValue Type: REG_DWORDValue: 0x00000000 (0)

Fix

F-57904r849219_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".