SV-226136r794412: The Responder network protocol driver must be disabled. | Microsoft Windows Server 2012/2012 R2 Domain Controller STIG SCAP Benchmark

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Assessment Title

Rule Text

The Responder network protocol driver must be disabled.

Description

Discussion Text

The Responder network protocol driver allows a computer to be discovered and located on a network. Disabling this helps protect the system from potentially being discovered and connected to by unauthorized devices.

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

IA Controls

NIST SP 800-53

Not mappedCCI-000381CCE-23931-9V-15697SV-53081

References

DPMS Target Microsoft Windows Server 2012-2012 R2 DC DISA DPMS Target Microsoft Windows Server 2012-2012 R2 DC 4217

Checks

DISA STIG (Manual Reference)

If the following registry values do not exist or are not configured as specified, this is a finding:

Registry Hive: HKEY_LOCAL_MACHINE
Registry Path: \Software\Policies\Microsoft\Windows\LLTD\

Value Name: AllowRspndrOndomain
Value Name: AllowRspndrOnPublicNet
Value Name: EnableRspndr
Value Name: ProhibitRspndrOnPrivateNet

Type: REG_DWORD
Value: 0

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:4432
# The Responder network protocol driver 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 AllowRspndrOnDomain value equals 0
# 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\LLTD').GetValueKind('AllowRspndrOnDomain').ToString()]) -eq 'reg_dword') -and (((Get-ItemProperty -Path 'Registry::HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\LLTD' -Name 'AllowRspndrOnDomain' -ErrorAction SilentlyContinue) | Select-Object -ExpandProperty 'AllowRspndrOnDomain') -eq 0))
}
# Verifies AllowRspndrOnPublicNet value equals 0
# 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\LLTD').GetValueKind('AllowRspndrOnPublicNet').ToString()]) -eq 'reg_dword') -and (((Get-ItemProperty -Path 'Registry::HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\LLTD' -Name 'AllowRspndrOnPublicNet' -ErrorAction SilentlyContinue) | Select-Object -ExpandProperty 'AllowRspndrOnPublicNet') -eq 0))
}
# Verifies EnableRspndr value equals 0
# 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\Policies\Microsoft\Windows\LLTD').GetValueKind('EnableRspndr').ToString()]) -eq 'reg_dword') -and (((Get-ItemProperty -Path 'Registry::HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\LLTD' -Name 'EnableRspndr' -ErrorAction SilentlyContinue) | Select-Object -ExpandProperty 'EnableRspndr') -eq 0))
}
# Verifies ProhibitRspndrOnPrivateNet value equals 0
# 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\Policies\Microsoft\Windows\LLTD').GetValueKind('ProhibitRspndrOnPrivateNet').ToString()]) -eq 'reg_dword') -and (((Get-ItemProperty -Path 'Registry::HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\LLTD' -Name 'ProhibitRspndrOnPrivateNet' -ErrorAction SilentlyContinue) | Select-Object -ExpandProperty 'ProhibitRspndrOnPrivateNet') -eq 0))
}

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_2012_and_2012_r2_dc target this check assesses.

# OVAL Definition: oval:mil.disa.fso.windows:def:4432

$compliant = (Get-ItemProperty -Path "HKLM:\Software\Policies\Microsoft\Windows\LLTD" -ErrorAction SilentlyContinue -Name "AllowRspndrOnDomain", "AllowRspndrOnPublicNet", "EnableRspndr", "ProhibitRspndrOnPrivateNet" -ValueOnly).Value -eq 0
if ($compliant) { Write-Output "PASS"; Exit 0 } else { Write-Output "FAIL"; Exit 1 }

Remediation

Configure the policy value for Computer Configuration -> Administrative Templates -> Network -> Link-Layer Topology Discovery -> "Turn on Responder (RSPNDR) driver" to "Disabled".