The CA-TSS INSTDATA Control Option must be set to 0.

Severity
Group ID
Group Title
Version
Rule ID
Date
STIG Version
mediumV-223934SRG-OS-000480-GPOS-00227TSS0-ES-000610SV-223934r991589_rule2025-03-119
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.
ℹ️ Check
From the ISPF Command enter: TSS MODIFY STATUS If the INSTDATA Control Option is set to NONE this is not a finding.
✔️ 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.