STIGQter: STIG Summary: Microsoft Windows Server 2012/2012 R2 Domain Controller Security Technical Implementation Guide Version: 3 Release: 2 Benchmark Date: 04 May 2021:

Windows SmartScreen must be enabled on Windows 2012/2012 R2.

DISA Rule

SV-226194r569184_rule

Vulnerability Number

V-226194

Group Title

SRG-OS-000095-GPOS-00049

Rule Version

WN12-CC-000088

Severity

CAT II

CCI(s)

• CCI-000381 - The organization configures the information system to provide only essential capabilities.

Weight

10

Fix Recommendation

Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> File Explorer >> "Configure Windows SmartScreen" to "Enabled" with either "Give user a warning before running downloaded unknown software" or "Require approval from an administrator before running downloaded unknown software" selected.

Microsoft has changed this setting several times in the Windows 10 administrative templates, which will affect group policies in a domain if later templates are used.

v1607 of Windows 10 and Windows Server 2016 changed the setting to only Enabled or Disabled without additional selections. Enabled is effectively "Give user a warning…".

v1703 of Windows 10 or later administrative templates changed the policy name to "Configure Windows Defender SmartScreen", and the selectable options are "Warn" and "Warn and prevent bypass". When either of these are applied to a Windows 2012/2012 R2 system, it will configure the registry equivalent of "Give user a warning…").

Check Contents

This is applicable to unclassified systems; for other systems, this is NA.

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: \SOFTWARE\Policies\Microsoft\Windows\System\

Value Name: EnableSmartScreen

Type: REG_DWORD
Value: 0x00000001 (1) (Give user a warning…)
Or 0x00000002 (2) (Require approval…)

Vulnerability Number

V-226194

Documentable

False

Rule Version

WN12-CC-000088

Severity Override Guidance

This is applicable to unclassified systems; for other systems, this is NA.

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: \SOFTWARE\Policies\Microsoft\Windows\System\

Value Name: EnableSmartScreen

Type: REG_DWORD
Value: 0x00000001 (1) (Give user a warning…)
Or 0x00000002 (2) (Require approval…)

Check Content Reference

M

Target Key

4217

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