The maximum age for machine account passwords must be set to requirements.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
WN08-SO-000016	WN08-SO-000016	WN08-SO-000016_rule		Low

Description
Computer account passwords are changed automatically on a regular basis. This setting controls the maximum password age that a machine account may have. This setting must be set to no more than 30 days, ensuring the machine changes its password monthly.

STIG	Date
Windows 8 Security Technical Implementation Guide	2012-11-21

Details

Check Text ( C-WN08-SO-000016_chk )
Analyze the system using the Security Configuration and Analysis snap-in. (See "Performing Analysis with the Security Configuration and Analysis Snap-in" in the STIG Overview document.) Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -> Security Options. If the value for "Domain Member: Maximum Machine Account Password Age" is "0" or greater than 30 (30 is the default), this is a finding. The policy referenced configures the following registry value: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \System\CurrentControlSet\Services\Netlogon\Parameters\ Value Name: MaximumPasswordAge Value Type: REG_DWORD Value: 30

Check Text ( C-WN08-SO-000016_chk )

Analyze the system using the Security Configuration and Analysis snap-in. (See "Performing Analysis with the Security Configuration and Analysis Snap-in" in the STIG Overview document.)
Expand the Security Configuration and Analysis tree view.
Navigate to Local Policies -> Security Options.

If the value for "Domain Member: Maximum Machine Account Password Age" is "0" or greater than 30 (30 is the default), this is a finding.

The policy referenced configures the following registry value:

Registry Hive: HKEY_LOCAL_MACHINE
Registry Path: \System\CurrentControlSet\Services\Netlogon\Parameters\

Value Name: MaximumPasswordAge

Value Type: REG_DWORD
Value: 30

Fix Text (F-WN08-SO-000016_fix)
Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "Domain Member: Maximum Machine Account Password Age" to "30" or less (excluding 0 which is unacceptable).