The CA-TSS SUBACID Control Option must be set to U,8.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-223959	TSS0-ES-000860	SV-223959r877800_rule		Medium

Description
In certain situations, software applications/programs need to execute with elevated privileges to perform required functions. However, if the privileges required for execution are at a higher level than the privileges assigned to organizational users invoking such applications/programs, those users are indirectly provided with greater privileges than assigned by the organizations. Some programs and processes are required to operate at a higher privilege level and therefore should be excluded from the organization-defined software list after review.

Description

In certain situations, software applications/programs need to execute with elevated privileges to perform required functions. However, if the privileges required for execution are at a higher level than the privileges assigned to organizational users invoking such applications/programs, those users are indirectly provided with greater privileges than assigned by the organizations. Some programs and processes are required to operate at a higher privilege level and therefore should be excluded from the organization-defined software list after review.

STIG	Date
IBM z/OS TSS Security Technical Implementation Guide	2023-09-19

Details

Check Text ( C-25632r516276_chk )
From this ISPF Command Shell enter: TSS MODIFY STATUS If the SUBACID Control Option values are NOT set to "SUBACID(U,8)", this is a finding.

Fix Text (F-25620r516277_fix)
Evaluate the impact associated with implementation of the control option. Develop a plan of action to implement the control option setting to "SUBACID(U,8)", and proceed with the change.