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-7292r3_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 ACF2 STIG	2019-12-12

Details

Check Text ( C-72953r2_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: SET LID LIST RMFGAT If the RMFGAT is defined as follows, this is not a FINDING: - Default group specified as OMVSGRP or STCOMVS From a command input screen enter: SET PROFILE(USER) DIVISION(OMVS) SET VERBOSE LIST RMFGAT If RMFGAT is defined as follows, this is not a finding: - A unique, non-zero UID - HOME directory specified as “/” - Shell program specified as “/bin/sh” Alternately, Refer to the following reports produced by the ACP Data Collection: - ACF2CMDS.RPT(OMVSUSER) - ACF2CMDS.RPT(LOGONIDS) 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-72953r2_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:
SET LID
LIST RMFGAT
If the RMFGAT is defined as follows, this is not a FINDING:

- Default group specified as OMVSGRP or STCOMVS

From a command input screen enter:

SET PROFILE(USER) DIVISION(OMVS)
SET VERBOSE
LIST RMFGAT
If RMFGAT is defined as follows, this is not a finding:
- A unique, non-zero UID
- HOME directory specified as “/”
- Shell program specified as “/bin/sh”

Alternately,
Refer to the following reports produced by the ACP Data Collection:

- ACF2CMDS.RPT(OMVSUSER)
- ACF2CMDS.RPT(LOGONIDS)

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-79259r2_fix)
Define the RMFGAT user account 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”