IBM z/OS must enforce a minimum eight character password length.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-252705 | ACF2-ES-000990 | SV-252705r1001146_rule | CCI-004065 | medium |
| Description | ||||
| The shorter the password, the lower the number of possible combinations that need to be tested before the password is compromised. Password complexity, or strength, is a measure of the effectiveness of a password in resisting attempts at guessing and brute-force attacks. Password length is one factor of several that helps to determine strength and how long it takes to crack a password. Use of more characters in a password helps to exponentially increase the time and/or resources required to compromise the password. | ||||
| STIG | Date | |||
| IBM z/OS ACF2 Security Technical Implementation Guide | 2025-06-24 | |||
Details
Check Text (C-252705r1001146_chk)
From an ACF command screen enter:
SET CONTROL(GSO)
LIST PSWD
If "MINPSWD" is set to "8", this is not a finding.
Fix Text (F-56111r819059_fix)
Configure the Password option "MINPSWD" to "8".