SV-25041r1: The computer account password is prevented from being reset. | Windows 7 Security Technical Implementation Guide

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Assessment Title

Rule Text

The computer account password is prevented from being reset.

Description

Discussion Text

Computer account passwords are changed automatically on a regular basis. Enabling this policy to disable automatic password changes can make the system more vulnerable to malicious access. Frequent password changes can be a significant safeguard for your system. If this policy is disabled, a new password for the computer account will be generated every 30 days.

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

IA Controls

NIST SP 800-53

Not mappedCCI-000366CCE-9295-7

Additional Details

Third-Party Tools

Responsibility

System Administrator

References

DPMS Target Windows 7 DISA DPMS Target Windows 7 1712

Checks

OVAL

oval:mil.disa.fso.windows:var:368700 ← xccdf_mil.disa.stig_value_disable_machine_account_password_changes_var

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:3687
# The computer account password is prevented from being reset.
# Per-module read mechanism curated from static teardown of DISA's SCC tool
# (SCAP Compliance Checker) -- see the SCC Automation Reference above.

# Verifies 'Domain member: Disable machine account password changes' 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\System\CurrentControlSet\Services\Netlogon\Parameters').GetValueKind('DisablePasswordChange').ToString()]) -eq 'reg_dword') -and (((Get-ItemProperty -Path 'Registry::HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Netlogon\Parameters' -Name 'DisablePasswordChange' -ErrorAction SilentlyContinue) | Select-Object -ExpandProperty 'DisablePasswordChange') -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 windows_7 target this check assesses.

# OVAL Definition: oval:mil.disa.fso.windows:def:3687
$regPath = "HKLM:\System\CurrentControlSet\Services\Netlogon\Parameters"
$regKey = "DisablePasswordChange"
$regValue = 0
if (Test-Path $regPath) { $regData = Get-ItemProperty -Path $regPath -Name $regKey -ErrorAction SilentlyContinue; if ($regData.$regKey -eq $regValue) { Write-Output "PASS"; exit 0 } }
Write-Output "FAIL"; exit 1

Remediation

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> “Domain Member: Disable Machine Account Password Changes” to “Disabled”.