SV-220869r958400: Windows 10 must be configured to prevent Windows apps from being activated by voice while the system is locked. | Microsoft Windows 10 STIG SCAP Benchmark

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Assessment Title

Rule Text

Windows 10 must be configured to prevent Windows apps from being activated by voice while the system is locked.

Description

Discussion Text

Allowing Windows apps to be activated by voice from the lock screen could allow for unauthorized use. Requiring logon will ensure the apps are only used by authorized personnel.

How this relates to the STIG checklist: STIG vs SCAP benchmark.

IA Controls

NIST SP 800-53

Not mappedCCI-000056V-94719SV-104549

References

DPMS Target Microsoft Windows 10 DISA DPMS Target Microsoft Windows 10 4072

SCC Automation Reference

The reconstructed evaluation script behind this rule's OVAL check(s) — every module a compound check combines, with this rule's own concrete values and DISA's SCC tool's real per-module mechanism curated from static teardown of SCC releases.

# Windows PowerShell
# Reconstructed from oval:mil.disa.stig.windows10:def:220869
# Windows 10 must be configured to prevent Windows apps from being activated by voice while the system is locked.
# Per-module read mechanism curated from static teardown of DISA's SCC tool
# (SCAP Compliance Checker) -- see the SCC Automation Reference above.

# registry_object (registry_test)
function test_1 {
  return (((@{String='reg_sz';ExpandString='reg_expand_sz';Binary='reg_binary';DWord='reg_dword';MultiString='reg_multi_sz';QWord='reg_qword';None='reg_none'}[(Get-Item -Path 'Registry::HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\AppPrivacy').GetValueKind('LetAppsActivateWithVoice').ToString()]) -eq 'reg_dword') -and (((Get-ItemProperty -Path 'Registry::HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\AppPrivacy' -Name 'LetAppsActivateWithVoice' -ErrorAction SilentlyContinue) | Select-Object -ExpandProperty 'LetAppsActivateWithVoice') -eq 2))
}
# registry_object (registry_test)
function test_2 {
  return (((@{String='reg_sz';ExpandString='reg_expand_sz';Binary='reg_binary';DWord='reg_dword';MultiString='reg_multi_sz';QWord='reg_qword';None='reg_none'}[(Get-Item -Path 'Registry::HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\AppPrivacy').GetValueKind('LetAppsActivateWithVoiceAboveLock').ToString()]) -eq 'reg_dword') -and (((Get-ItemProperty -Path 'Registry::HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\AppPrivacy' -Name 'LetAppsActivateWithVoiceAboveLock' -ErrorAction SilentlyContinue) | Select-Object -ExpandProperty 'LetAppsActivateWithVoiceAboveLock') -eq 2))
}

if ((test_1 -or test_2)) {
  Write-Output "PASS"
} else {
  Write-Output "FAIL"
}

Assessment Script Powered by AISyntax-verified

A standalone PowerShell script to assess this control automatically. Review before running it in your environment.

Syntax-checked as valid PowerShell. Not executed here — running it for real needs the actual ms_windows_10 target this check assesses.

# oval:mil.disa.stig.windows10:def:220869
if (!(Get-ItemProperty -Path "HKLM:\SOFTWARE\Policies\Microsoft\Windows\AppPrivacy" -ErrorAction SilentlyContinue).LetAppsActivateWithVoice -eq 2 -or!(Get-ItemProperty -Path "HKLM:\SOFTWARE\Policies\Microsoft\Windows\AppPrivacy" -ErrorAction SilentlyContinue).LetAppsActivateWithVoiceAboveLock -eq 2) { Write-Output "FAIL"; Exit 1 } else { Write-Output "PASS"; Exit 0 }

Remediation

Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> App Privacy >> "Let Windows apps activate with voice while the system is locked" to "Enabled" with "Default for all Apps:" set to "Force Deny". 

The requirement is NA if the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> App Privacy >> "Let Windows apps activate with voice" is configured to "Enabled" with "Default for all Apps:" set to "Force Deny".