SV-253382r1268233: Solicited Remote Assistance must not be allowed. | Microsoft Windows 11 STIG SCAP Benchmark

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Assessment Title

Rule Text

Solicited Remote Assistance must not be allowed.

Description

Discussion Text

Remote assistance allows another user to view or take control of the local session of a user. Solicited assistance is help that is specifically requested by the local user. This may allow unauthorized parties access to the resources on the computer.

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

IA Controls

NIST SP 800-53

Not mappedCCI-001090

References

DPMS Target Microsoft Windows 11 DISA DPMS Target Microsoft Windows 11 5471

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.windows11:def:253382
# Solicited Remote Assistance must not be allowed.
# Per-module read mechanism curated from static teardown of DISA's SCC tool
# (SCAP Compliance Checker) -- see the SCC Automation Reference above.

# 'Configure Solicited Remote Assistance' 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\Policies\Microsoft\Windows NT\Terminal Services').GetValueKind('fAllowToGetHelp').ToString()]) -eq 'reg_dword') -and (((Get-ItemProperty -Path 'Registry::HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows NT\Terminal Services' -Name 'fAllowToGetHelp' -ErrorAction SilentlyContinue) | Select-Object -ExpandProperty 'fAllowToGetHelp') -eq 0))
}

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_11 target this check assesses.

# OVAL Definition: oval:mil.disa.stig.windows11:def:253382
$compliant = Test-Path -Path "HKLM:\SOFTWARE\Policies\Microsoft\Windows NT\Terminal Services" -ErrorAction SilentlyContinue
if ($compliant) {
    $regValue = (Get-ItemProperty -Path "HKLM:\SOFTWARE\Policies\Microsoft\Windows NT\Terminal Services" -ErrorAction SilentlyContinue).fAllowToGetHelp
    if ($regValue -eq 0) {
        Write-Output "PASS"
        Exit 0
    } else {
        Write-Output "FAIL"
        Exit 1
    }
} else {
    Write-Output "PASS"
    Exit 0
}

Remediation

Configure the policy value for Computer Configuration >> Administrative Templates >> System >> Remote Assistance >> "Configure Solicited Remote Assistance" to "Disabled".