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

From Windows Server 2012/2012 R2 Domain Controller Security Technical Implementation Guide

Part of Maximum Machine Account Password Age

Associated with: CCI-000366

SV-52887r1_rule The maximum age for machine account passwords must be set to requirements.

Vulnerability discussion

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.

Check content

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: 30 (or less, but not 0)

Fix text

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).

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