SV-29019r2: The Recovery Console SET command must be disabled. | Windows Vista Security Technical Implementation Guide

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Assessment Title

Rule Text

The Recovery Console SET command must be disabled.

Description

Discussion Text

The Recovery Console SET command allows environment variables to be set in the Recovery Console. This permits access to all drives and folders and the copying of files to removable media which could expose sensitive information.

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

IA Controls

NIST SP 800-53

Not mappedCCI-000366CCE-3953-7

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:438
# The Recovery Console SET command 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.

# registry_object (registry_test)
function test_1 {
  return (((Get-ItemProperty -Path 'Registry::HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\Setup\RecoveryConsole' -Name 'SetCommand' -ErrorAction SilentlyContinue) | Select-Object -ExpandProperty 'SetCommand') -eq 0)
}
# registry_object (registry_test)
function test_2 {
  return (-not ($null -ne (Get-ItemProperty -Path 'Registry::HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\Setup\RecoveryConsole' -Name 'SetCommand')))
}
# registry_object (registry_test)
function test_3 {
  return ((@{String='reg_sz';ExpandString='reg_expand_sz';Binary='reg_binary';DWord='reg_dword';MultiString='reg_multi_sz';QWord='reg_qword';None='reg_none'}[(Get-Item -Path 'Registry::HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\Setup\RecoveryConsole').GetValueKind('SetCommand').ToString()]) -eq 'reg_dword')
}
# registry_object (registry_test)
function test_4 {
  return (-not ($null -ne (Get-ItemProperty -Path 'Registry::HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\Setup\RecoveryConsole' -Name 'SetCommand')))
}
# registry_object (registry_test)
function test_5 {
  return ($null -ne (Get-ItemProperty -Path 'Registry::HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\Setup\RecoveryConsole' -Name 'SetCommand'))
}

if (((test_1 -or test_2) -and (test_3 -or test_4) -and 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:438
$compliance = (Get-ItemProperty -Path 'HKLM:\Software\Microsoft\Windows NT\CurrentVersion\Setup\RecoveryConsole' -ErrorAction SilentlyContinue) -eq $null -or ($null -ne (Get-ItemProperty -Path 'HKLM:\Software\Microsoft\Windows NT\CurrentVersion\Setup\RecoveryConsole' -ErrorAction SilentlyContinue).SetCommand -and ([int](Get-ItemProperty -Path 'HKLM:\Software\Microsoft\Windows NT\CurrentVersion\Setup\RecoveryConsole' -ErrorAction SilentlyContinue).SetCommand) -eq 0)
if ($compliance) { Write-Output "PASS"; Exit 0 } else { Write-Output "FAIL"; Exit 1 }

Remediation

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> "Recovery Console: Allow floppy copy and access to all drives and all folders" to "Disabled".