The minimum password age must be configured to at least one day.

From Windows Server 2016 Security Technical Implementation Guide

Associated with: CCI-000198

SV-87971r1_rule The minimum password age must be configured to at least one day.

Vulnerability discussion

Permitting passwords to be changed in immediate succession within the same day allows users to cycle passwords through their history database. This enables users to effectively negate the purpose of mandating periodic password changes.

Check content

Verify the effective setting in Local Group Policy Editor. Run "gpedit.msc". Navigate to Local Computer Policy >> Computer Configuration >> Windows Settings >> Security Settings >> Account Policies >> Password Policy. If the value for the "Minimum password age" is set to "0" days ("Password can be changed immediately"), this is a finding.

Fix text

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Account Policies >> Password Policy >> "Minimum password age" to at least "1" day.

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