IBM z/OS TSO GSO record values must be set to the values specified.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-223469 | ACF2-ES-000510 | SV-223469r991589_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 ACF2 Security Technical Implementation Guide | 2025-06-24 | |||
Details
Check Text (C-223469r991589_chk)
From the ACF Command screen enter:
SET CONTROL(GSO)
LIST TSO
If the GSO TSO record values conform to the following requirements, this is not a finding.
ACCOUNT(1)
BYPASS(#)
CHAR(BS)
CMDLIST()
NOIKJEFLD1
LINE(ATTN)
LOGONCK
PERFORM(0)
PROC(site defined)
NOQLOGON
REGION(site defined)
SUBCLSS()
SUBHOLD()
SUBMSG()
TIME(0)
TSOSOUT(A)
UNIT(SYSDA)
WAITIME(1-60)
Fix Text (F-25130r504526_fix)
Configure the GSO TSO record values to conform to the following requirements.
ACCOUNT(1)
BYPASS(#)
CHAR(BS)
CMDLIST()
NOIKJEFLD1
LINE(ATTN)
LOGONCK
PERFORM(0)
PROC(site defined)
NOQLOGON
REGION(site defined)
SUBCLSS()
SUBHOLD()
SUBMSGC()
TIME(0)
TSOSOUT(A)
UNIT(SYSDA)
WAITIME(1-60)
Example:
SET C(GSO)
INSERT TSO ACCOUNT(1) BYPASS(#) CHAR(BS) CMDLIST() NOIKJEFLD1 LINE(ATTN) LOGONCK PERFORM(0) PROC(IKJACCNT) NOQLOGON REGION(4,096) SUBCLSS() SUBHOLD() SUBMSGC() TIME(0) TSOGNAME() TSOSOUT(A) UNIT(SYSDA) WAITIME(60)
F ACF2,REFRESH(TSO)