Outdated or unused accounts must be removed from the system.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
WN12-GE-000014	WN12-GE-000014	WN12-GE-000014_rule		Low

Description
Outdated or unused accounts provide penetration points that may go undetected. Inactive accounts must be deleted if no longer necessary or, if still required, disabled until needed.

STIG	Date
Microsoft Windows Server 2012 Domain Controller Security Technical Implementation Guide	2013-07-25

Details

Check Text ( C-WN12-GE-000014_chk )

Run the DUMPSEC utility. Select "Dump Users as Table" from the "Report" menu. Select the following fields, and click "Add" for each entry: UserName SID LastLogonTime AcctDisabled Review the "LastLogonTime". If any enabled accounts have not been logged into within the past 35 days, this is a finding. The following accounts are exempt: Built-in administrator account (SID ending in 500) Built-in guest account (SID ending in 501) Application accounts Disabled accounts The following PowerShell command may be used on domain controllers to list inactive accounts: Search-ADAccount -AccountInactive -UsersOnly -TimeSpan 35.00:00:00 Review the list to determine the validity for each account reported. Dormant accounts that have been reviewed and deemed to be required must be documented with the IAO.

Fix Text (F-WN12-GE-000014_fix)
Regularly review accounts to determine if they are still active. Remove or disable accounts that have not been used in the last 35 days.