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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-223469r533198_rule 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 2022-06-22

Details

Check Text ( C-25142r504525_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)