The CA-TSS INSTDATA Control Option must be set to 0.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-223934 | TSS0-ES-000610 | SV-223934r991589_rule | CCI-000366 | medium |
| Description | ||||
| Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. | ||||
| STIG | Date | |||
| IBM z/OS TSS Security Technical Implementation Guide | 2025-06-24 | |||
Details
Check Text (C-223934r991589_chk)
From the ISPF Command enter:
TSS MODIFY STATUS
If the INSTDATA Control Option is set to NONE this is not a finding.
Fix Text (F-25595r516202_fix)
Evaluate the impact associated with implementation of the control option. Develop a plan of action to set the INSTDATA control option value to (0) and proceed with the change.