IBM Z (z/OS)
TMA-IBM-Z-1.1.4
Ensure that the SETROPTS PASSWORD(MINCHANGE) value is set to a minimum of 1
설명
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.
점검 방법
감사 방식: 수동 검토
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.
조치 방법
조치 방식: 가이드 또는 인프라 패치
To modify the MINCHANGE parameter use the RACF SETROPTS command: SETROPTS PASSWORD(MINCHANGE(1))
속성
- 운영 체제
- 모두
- 태그
- ibm-zpassword-policy
- 참고 자료
- 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