Windows Server 2019 maximum age for machine account passwords must be configured to 30 days or less.

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Windows Server 2019 maximum age for machine account passwords must be configured to 30 days or less.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-93285	WN19-SO-000100	SV-103373r1_rule		Medium

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 must be set to no more than 30 days, ensuring the machine changes its password monthly.

STIG	Date
Windows Server 2019 Security Technical Implementation Guide	2020-06-15

Details

Check Text ( C-92603r1_chk )
This is the default configuration for this setting (30 days). If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SYSTEM\CurrentControlSet\Services\Netlogon\Parameters\ Value Name: MaximumPasswordAge Value Type: REG_DWORD Value: 0x0000001e (30) (or less, but not 0)

Fix Text (F-99531r1_fix)
This is the default configuration for this setting (30 days). 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).