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V-205915

CAT II (Medium)

Windows Server 2019 must be configured to prevent anonymous users from having the same permissions as the Everyone group.

Rule ID

SV-205915r991589_rule

STIG

Microsoft Windows Server 2019 Security Technical Implementation Guide

Version

V3R8

CCIs

CCI-000366

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.

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: 0x00000000 (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".