IBM Z (z/OS)
TMA-IBM-Z-1.1.2
Ensure that the SETROPTS PASSWORD(HISTORY) value is set to a minimum of 5
설명
HISTORY specifies the number of previous passwords that RACF saves for each user ID and compares with an intended new password. If there is a match with one of the previous passwords, or with the current password, RACF rejects the intended new password. A password history policy prevents users from immediately reusing an old password by enforcing a minimum number of new, unique passwords that must be used before a previous one can be reused.
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: <nn> GENERATIONS OF PREVIOUS PASSWORDS BEING MAINTAINED. Verify the value is equal to or greater than 5 generations.
조치 방법
조치 방식: 가이드 또는 인프라 패치
To modify the HISTORY parameter use the RACF SETROPTS command: SETROPTS PASSWORD(HISTORY(5))
속성
- 운영 체제
- 모두
- 태그
- ibm-zpassword-policy
- 참고 자료
- CIS IBM z/OS with RACF Benchmark v1.0.0 - 1.1.2 Ensure that the SETROPTS PASSWORD(HISTORY) value is set to a minimum of 5