The user account for the z/OS UNIX (RMFGAT) must be properly defined.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-6989	ZUSS0045	SV-87477r1_rule		Medium

Description
User identifiers (ACF2 logonids, RACF userids, and Top Secret ACIDs), groups, and started tasks that use z/OS UNIX facilities are defined to an ACP with attributes including UID and GID. If these attributes are not correctly defined, data access or command privilege controls could be compromised.

STIG	Date
z/OS TSS STIG	2019-12-12

Details

Check Text ( C-72957r2_chk )
RMFGAT is the userid for the Resource Measurement Facility (RMF) Monitor III Gatherer. If RMFGAT is not define this is not applicable. From a command input screen enter: TSS LIST (RMFGAT) DATA ALL Alternately: Refer to the following reports produced by the ACP Data Collection: - TSSCMDS.RPT(@ACIDS) If RMFGAT is defined as follows, this is not a finding - Default group specified as OMVSGRP or STCOMVS - A unique, non-zero UID - HOME directory specified as “/” - Shell program specified as “/bin/sh”

Check Text ( C-72957r2_chk )

RMFGAT is the userid for the Resource Measurement Facility (RMF) Monitor III Gatherer. If RMFGAT is not define this is not applicable.

From a command input screen enter:

TSS LIST (RMFGAT) DATA ALL

Alternately:

Refer to the following reports produced by the ACP Data Collection:
- TSSCMDS.RPT(@ACIDS)

If RMFGAT is defined as follows, this is not a finding

- Default group specified as OMVSGRP or STCOMVS
- A unique, non-zero UID
- HOME directory specified as “/”
- Shell program specified as “/bin/sh”

Fix Text (F-79263r2_fix)
Define RMFGAT user account is defined as specified below: Default group specified as OMVSGRP or STCOMVS A unique, non-zero UID HOME directory specified as “/” Shell program specified as “/bin/sh”