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:483
# The system is configured to detect and configure default gateway addresses.
# 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 (((Get-ItemProperty -Path 'Registry::HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Tcpip\Parameters' -Name 'PerformRouterDiscovery' -ErrorAction SilentlyContinue) | Select-Object -ExpandProperty 'PerformRouterDiscovery') -eq 0)
}
# registry_object (registry_test)
function test_2 {
return (-not ($null -ne (Get-ItemProperty -Path 'Registry::HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Tcpip\Parameters' -Name 'PerformRouterDiscovery')))
}
# registry_object (registry_test)
function test_3 {
return ($null -ne (Get-ItemProperty -Path 'Registry::HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Tcpip\Parameters' -Name 'PerformRouterDiscovery'))
}
# 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\System\CurrentControlSet\Services\Tcpip\Parameters').GetValueKind('PerformRouterDiscovery').ToString()]) -eq 'reg_dword')
}
# registry_object (registry_test)
function test_5 {
return (-not ($null -ne (Get-ItemProperty -Path 'Registry::HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Tcpip\Parameters' -Name 'PerformRouterDiscovery')))
}
if (((test_1 -or test_2) -and 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:483
$registryPath = "HKLM:\System\CurrentControlSet\Services\Tcpip\Parameters\PerformRouterDiscovery"
if (-not (Test-Path $registryPath)) { Write-Output "PASS"; exit 0 }
$regValue = Get-ItemProperty -Path $registryPath -Name "PerformRouterDiscovery" -ErrorAction SilentlyContinue
if ($regValue -eq $null -or $regValue.PerformRouterDiscovery -ne 0) { Write-Output "PASS"; exit 0 }
Write-Output "FAIL"; exit 1