Ensure that the SETROPTS PASSWORD(MINCHANGE) value is set to a minimum of 1

高レベル 1手動レビューibm-z

説明

SETROPTS PASSWORD(MINCHANGE(<nnn>) specifies the number of days that must pass between a user's password and password phrase changes. Users can not change their own passwords and password phrases within the minimum change interval. How frequently a password can be changed should be limited to prevent a user from immediately changing the password multiple times to get back to the original one.

チェック方法

監査方法: 手動レビュー

この推奨事項は自動ではチェックできません。--include-manual を指定すると、スキャン結果にこの手順付きで一覧表示されます。

Issue the following TSO command: SETROPTS LIST Review the command output in the PASSWORD PROCESSING OPTIONS: section. Look for the following message: PASSWORD MINIMUM CHANGE INTERVAL IS <nnn> DAYS. Verify the value is equal to or greater than 1 days.

修正方法

修正方法: ガイダンスまたは IaC パッチ

To modify the MINCHANGE parameter use the RACF SETROPTS command: SETROPTS PASSWORD(MINCHANGE(1))

プロパティ

オペレーティングシステム: すべて
タグ: ibm-zpassword-policy
参照: CIS IBM z/OS with RACF Benchmark v1.0.0 - 1.1.4 Ensure that the SETROPTS PASSWORD(MINCHANGE) value is set to a minimum of 1