SV-220859r991591: Automatically signing in the last interactive user after a system-initiated restart must be disabled. | Microsoft Windows 10 STIG SCAP Benchmark

Loading benchmark…

Assessment Title

Rule Text

Automatically signing in the last interactive user after a system-initiated restart must be disabled.

Description

Discussion Text

Windows can be configured to automatically sign the user back in after a Windows Update restart. Some protections are in place to help ensure this is done in a secure fashion; however, disabling this will prevent the caching of credentials for this purpose and also ensure the user is aware of the restart.

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

IA Controls

NIST SP 800-53

Not mappedCCI-000366SV-77823V-63333

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:220859
# Automatically signing in the last interactive user after a system-initiated restart must be disabled.
# Per-module read mechanism curated from static teardown of DISA's SCC tool
# (SCAP Compliance Checker) -- see the SCC Automation Reference above.

# Verifies 'Sign-in last interactive user automatically after a system-initiated restart' is set to 'Disabled'
# 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\Microsoft\Windows\CurrentVersion\Policies\System').GetValueKind('DisableAutomaticRestartSignOn').ToString()]) -eq 'reg_dword') -and (((Get-ItemProperty -Path 'Registry::HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System' -Name 'DisableAutomaticRestartSignOn' -ErrorAction SilentlyContinue) | Select-Object -ExpandProperty 'DisableAutomaticRestartSignOn') -eq 1))
}

if (test_1) {
  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 Definition: oval:mil.disa.stig.windows10:def:220859
if (!(Test-Path -Path "HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableAutomaticRestartSignOn" -PathType Leaf) -or ((Get-ItemProperty -Path "HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System" -Name DisableAutomaticRestartSignOn -ErrorAction SilentlyContinue).DisableAutomaticRestartSignOn -ne 1)) {Write-Output "PASS"; Exit 0} else {Write-Output "FAIL"; Exit 1}

Remediation

Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Windows Logon Options >> "Sign-in last interactive user automatically after a system-initiated restart" to "Disabled".