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 | 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-25564r516072_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) |