The system must be configured to prevent anonymous users from having the same rights as the Everyone group.

From Windows Server 2012/2012 R2 Member Server Security Technical Implementation Guide

Part of Everyone Anonymous rights

Associated with: CCI-000366

SV-52890r1_rule The system must be configured to prevent anonymous users from having the same rights as the Everyone group.

Vulnerability discussion

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

Check content

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: 0

Fix text

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".

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