The CA-TSS PPHIST Control Option must be properly set.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-223891 | TSS0-ES-000180 | SV-223891r998492_rule | CCI-004061 | medium |
| Description | ||||
| Password complexity, or strength, is a measure of the effectiveness of a password in resisting attempts at guessing and brute-force attacks. If the information system or application allows the user to consecutively reuse their password when that password has exceeded its defined lifetime, the end result is a password that is not changed as per policy requirements. | ||||
| STIG | Date | |||
| IBM z/OS TSS Security Technical Implementation Guide | 2025-06-24 | |||
Details
Check Text (C-223891r998492_chk)
From the ISPF Command Shell enter:
TSS MODIFY STATUS
If the PPHIST Control Option conforms to the following requirements, this is not a finding.
PPHIST(10-64)
Fix Text (F-25552r516073_fix)
Configure the PPHIST Control Option value to conforms to the following requirements:
PPHIST(10-64)
Example:
TSS MODIFY PPHIST(10)