SV-29646r1: Maximum password age does not meet minimum requirements. | Windows Vista Security Technical Implementation Guide

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Assessment Title

Rule Text

Maximum password age does not meet minimum requirements.

Description

Discussion Text

The longer a password is in use, the greater the opportunity for someone to gain unauthorized knowledge of the passwords. Further, scheduled changing of passwords hinders the ability of unauthorized system users to crack passwords and gain access to a system.

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

IA Controls

NIST SP 800-53

Not mappedCCI-000199CCE-2967-8

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:107
# Maximum password age does not meet minimum requirements.
# Per-module read mechanism curated from static teardown of DISA's SCC tool
# (SCAP Compliance Checker) -- see the SCC Automation Reference above.

# Max Password Age does not have a never expires value
# passwordpolicy_object (passwordpolicy_test)
function test_1 {
  return (((net accounts | Select-String 'Maximum password age') -replace '[^0-9]','') -ne -1)
}
# Maximum Password Age is less than or equal to 60 days or 5184000 seconds
# passwordpolicy_object (passwordpolicy_test)
function test_2 {
  return (((net accounts | Select-String 'Maximum password age') -replace '[^0-9]','') -le 5184000)
}

if (-not ((test_1 -and test_2))) {
  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:107
$passwordPolicy = Get-CimInstance -ClassName Win32_LocalUser
if ($passwordPolicy -ne $null -and ($passwordPolicy.PasswordExpires -eq $false -or ((Get-Date) - ($passwordPolicy.PasswordLastSet + [TimeSpan]::FromDays(60)) -lt [datetime]::MinValue))) {Write-Output "FAIL"; Exit 1} 
Write-Output "PASS"; Exit 0

Remediation

Configure the Maximum Password Age so that it is not "0" and doesn't exceed 60 days.