SV-220801r958478: Run as different user must be removed from context menus. | Microsoft Windows 10 STIG SCAP Benchmark

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Assessment Title

Rule Text

Run as different user must be removed from context menus.

Description

Discussion Text

The "Run as different user" selection from context menus allows the use of credentials other than the currently logged on user. Using privileged credentials in a standard user session can expose those credentials to theft. Removing this option from context menus helps prevent this from occurring.

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

IA Controls

NIST SP 800-53

Not mappedCCI-000381SV-86953V-72329

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:220801
# Run as different user must be removed from context menus.
# Per-module read mechanism curated from static teardown of DISA's SCC tool
# (SCAP Compliance Checker) -- see the SCC Automation Reference above.

# Verifies 'Remove 'Run as Different User' from context menus' is set to 'Enabled' (batfile)
# 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\Classes\batfile\shell\runasuser').GetValueKind('SuppressionPolicy').ToString()]) -eq 'reg_dword') -and (((Get-ItemProperty -Path 'Registry::HKEY_LOCAL_MACHINE\SOFTWARE\Classes\batfile\shell\runasuser' -Name 'SuppressionPolicy' -ErrorAction SilentlyContinue) | Select-Object -ExpandProperty 'SuppressionPolicy') -eq 4096))
}
# Verifies 'Remove 'Run as Different User' from context menus' is set to 'Enabled' (cmdfile)
# 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\Classes\cmdfile\shell\runasuser').GetValueKind('SuppressionPolicy').ToString()]) -eq 'reg_dword') -and (((Get-ItemProperty -Path 'Registry::HKEY_LOCAL_MACHINE\SOFTWARE\Classes\cmdfile\shell\runasuser' -Name 'SuppressionPolicy' -ErrorAction SilentlyContinue) | Select-Object -ExpandProperty 'SuppressionPolicy') -eq 4096))
}
# Verifies 'Remove 'Run as Different User' from context menus' is set to 'Enabled' (exefile)
# registry_object (registry_test)
function test_3 {
  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\Classes\exefile\shell\runasuser').GetValueKind('SuppressionPolicy').ToString()]) -eq 'reg_dword') -and (((Get-ItemProperty -Path 'Registry::HKEY_LOCAL_MACHINE\SOFTWARE\Classes\exefile\shell\runasuser' -Name 'SuppressionPolicy' -ErrorAction SilentlyContinue) | Select-Object -ExpandProperty 'SuppressionPolicy') -eq 4096))
}
# Verifies 'Remove 'Run as Different User' from context menus' is set to 'Enabled' (mscfile)
# registry_object (registry_test)
function test_4 {
  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\Classes\mscfile\shell\runasuser').GetValueKind('SuppressionPolicy').ToString()]) -eq 'reg_dword') -and (((Get-ItemProperty -Path 'Registry::HKEY_LOCAL_MACHINE\SOFTWARE\Classes\mscfile\shell\runasuser' -Name 'SuppressionPolicy' -ErrorAction SilentlyContinue) | Select-Object -ExpandProperty 'SuppressionPolicy') -eq 4096))
}

if ((test_1 -and test_2 -and test_3 -and test_4)) {
  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:220801
$compliant = $true
if (-not (Test-Path -Path "HKLM:\SOFTWARE\Classes\batfile\shell\runasuser\SuppressionPolicy" -ErrorAction SilentlyContinue)) {$compliant = $false} else {if ((Get-ItemProperty -Path "HKLM:\SOFTWARE\Classes\batfile\shell\runasuser\SuppressionPolicy").Type -ne 4096) {$compliant = $false}}
if (-not (Test-Path -Path "HKLM:\SOFTWARE\Classes\cmdfile\shell\runasuser\SuppressionPolicy" -ErrorAction SilentlyContinue)) {$compliant = $false} else {if ((Get-ItemProperty -Path "HKLM:\SOFTWARE\Classes\cmdfile\shell\runasuser\SuppressionPolicy").Type -ne 4096) {$compliant = $false}}
if (-not (Test-Path -Path "HKLM:\SOFTWARE\Classes\exefile\shell\runasuser\SuppressionPolicy" -ErrorAction SilentlyContinue)) {$compliant = $false} else {if ((Get-ItemProperty -Path "HKLM:\SOFTWARE\Classes\exefile\shell\runasuser\SuppressionPolicy").Type -ne 4096) {$compliant = $false}}
if (-not (Test-Path -Path "HKLM:\SOFTWARE\Classes\mscfile\shell\runasuser\SuppressionPolicy" -ErrorAction SilentlyContinue)) {$compliant = $false} else {if ((Get-ItemProperty -Path "HKLM:\SOFTWARE\Classes\mscfile\shell\runasuser\SuppressionPolicy").Type -ne 4096) {$compliant = $false}}
if ($compliant) {Write-Output "PASS"; exit 0} else {Write-Output "FAIL"; exit 1}

Remediation

Configure the policy value for Computer Configuration >> Administrative Templates >> MS Security Guide >> "Remove "Run as Different User" from context menus" to "Enabled".

This policy setting requires the installation of the SecGuide custom templates included with the STIG package.  "SecGuide.admx" and "SecGuide.adml" must be copied to the \Windows\PolicyDefinitions and \Windows\PolicyDefinitions\en-US directories respectively.