SV-29229r1: Solicited Remote Assistance is allowed. | Windows Vista Security Technical Implementation Guide

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Assessment Title

Rule Text

Solicited Remote Assistance is allowed.

Description

Discussion Text

This setting controls whether or not solicited remote assistance is allowed from this computer. Solicited assistance is help that is specifically requested by the user. This is a Category 1 finding because it 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-001090CCE-3323-3

Additional Details

Third-Party Tools

Responsibility

System Administrator

References

DPMS Target Windows Vista DISA DPMS Target Windows Vista 1029

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.fso.windows:def:453
# Solicited Remote Assistance is allowed.
# 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 ($null -ne (Get-ItemProperty -Path 'Registry::HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows NT\Terminal Services' -Name 'fAllowToGetHelp'))
}
# registry_object (registry_test)
function test_2 {
  return ((@{String='reg_sz';ExpandString='reg_expand_sz';Binary='reg_binary';DWord='reg_dword';MultiString='reg_multi_sz';QWord='reg_qword';None='reg_none'}[(Get-Item -Path 'Registry::HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows NT\Terminal Services').GetValueKind('fAllowToGetHelp').ToString()]) -eq 'reg_dword')
}
# registry_object (registry_test)
function test_3 {
  return (-not ($null -ne (Get-ItemProperty -Path 'Registry::HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows NT\Terminal Services' -Name 'fAllowToGetHelp')))
}
# registry_object (registry_test)
function test_4 {
  return (((Get-ItemProperty -Path 'Registry::HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows NT\Terminal Services' -Name 'fAllowToGetHelp' -ErrorAction SilentlyContinue) | Select-Object -ExpandProperty 'fAllowToGetHelp') -eq 0)
}
# registry_object (registry_test)
function test_5 {
  return (-not ($null -ne (Get-ItemProperty -Path 'Registry::HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows NT\Terminal Services' -Name 'fAllowToGetHelp')))
}

if ((test_1 -and (test_2 -or test_3) -and (test_4 -or test_5))) {
  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 windows_vista target this check assesses.

# OVAL Definition: oval:mil.disa.fso.windows:def:453
if (!(Test-Path 'HKLM:\Software\Policies\Microsoft\Windows NT\Terminal Services\fAllowToGetHelp' -ErrorAction SilentlyContinue) -or ((Get-ItemProperty -Path 'HKLM:\Software\Policies\Microsoft\Windows NT\Terminal Services\fAllowToGetHelp' -ErrorAction SilentlyContinue).fAllowToGetHelp -eq 0)) {Write-Output "PASS"; Exit 0} else {Write-Output "FAIL"; Exit 1}

Remediation

Configure the system to disable Remote Assistance by setting the policy value for Computer Configuration -> Administrative Templates -> System -> Remote Assistance “Solicited Remote Assistance” to “Disabled”.