The IBM z/OS user account for the UNIX kernel (OMVS) must be properly defined to the security database.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-223859 | RACF-US-000220 | SV-223859r958482_rule | CCI-000764 | medium |
| Description | ||||
| To assure accountability and prevent unauthenticated access, organizational users must be identified and authenticated to prevent potential misuse and compromise of the system. | ||||
| STIG | Date | |||
| IBM z/OS RACF Security Technical Implementation Guide | 2025-06-24 | |||
Details
Check Text (C-223859r958482_chk)
If OMVS userid is defined to the ESM as follows, this is not a finding.
No access to interactive on-line facilities (e.g., TSO, CICS, etc.)
Default group specified as OMVSGRP or STCOMVS
UID(0)
HOME directory specified as "/"
Shell program specified as "/bin/sh"
Fix Text (F-25520r868909_fix)
Define OMVS userid to the ESM as specified below:
No access to interactive on-line facilities (e.g., TSO, CICS, etc.)
Default group specified as OMVSGRP or STCOMVS
UID(0)
HOME directory specified as "/"
Shell program specified as "/bin/sh"