The user account for the z/OS UNIX (RMFGAT ) is not properly defined.

Associated with IA controls: DCCS-1, DCCS-2

SV-7292r1_rule The user account for the z/OS UNIX (RMFGAT ) is not properly defined.

Vulnerability discussion

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.

Check content

a) Refer to the following reports produced by the ACP Data Collection: ACF2 - ACF2CMDS.RPT(OMVSUSER) - ACF2CMDS.RPT(LOGONIDS) RACF - RACFCMDS.RPT(LISTUSER) TSS - TSSCMDS.RPT(@ACIDS) b) If RMFGAT is defined as follows, there is NO FINDING: 1) Default group specified as OMVSGRP or STCOMVS 2) A unique, non-zero UID 3) HOME directory specified as “/” 4) Shell program specified as “/bin/sh” c) If RMFGAT is not defined as specified in (b) above, this is a FINDING.

Fix text

The systems programmer will verify that RMFGAT user account is defined as specified below: 1) Default group specified as OMVSGRP or STCOMVS 2) A unique, non-zero UID 3) HOME directory specified as “/” 4) Shell program specified as “/bin/sh” RMFGAT is the userid for the Resource Measurement Facility (RMF) Monitor III Gatherer. It requires access to z/OS UNIX data. It must be assigned a unique UID and group and assigned the root directory (“/”) as its home directory.

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