The CA-TSS PWHIST Control Option must be set to 10 or greater.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-223890 | TSS0-ES-000170 | SV-223890r998491_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-223890r998491_chk)
From the ISPF Command Shell enter:
TSS MODIFY STATUS
If the PWHIST Control Option value is not set to PWHIST(10) or greater, this is a finding.
Fix Text (F-25551r516070_fix)
Evaluate the impact associated with implementation of the control option. Develop a plan of action to implement the following control option setting as specified and proceed with the change.
PWHIST(10) or greater