STIGQter: STIG Summary: z/OS CA MIM for RACF Security Technical Implementation Guide Version: 7 Release: 2 Benchmark Date: 01 Oct 2025:

CA MIM Resource Sharing resources will be properly defined and protected.

DISA Rule

SV-224441r1144907_rule

Vulnerability Number

V-224441

Group Title

SRG-OS-000018

Rule Version

ZMIMR020

Severity

CAT II

CCI(s)

• CCI-000213 - Enforce approved authorizations for logical access to information and system resources in accordance with applicable access control policies.

Weight

10

Fix Recommendation

The ISSO will work with the systems programmer to verify that the following are properly specified in the Access Control Program (ACP).

(Note: The resources and/or resource prefixes identified below are examples of a possible installation. The actual resources and/or prefixes are determined when the product is installed on a system through the product's installation guide and can be site specific.)

Use CA MIM Resource Sharing Resources table in the z/OS STIG Addendum. This table lists the resources, access requirements, and logging requirement for CA MIM Resource Sharing. Ensure the guidelines for the resources and/or generic equivalent specified in the z/OS STIG Addendum are followed.

Note: SAFPREFIX identifies the prefix for all resources. The default value for this keyword parameter is MIMGR. It is coded in the MIMINIT member of the data set specified in the MIMPARMS DD statement of the started task procedures.

The RACF resources as designated in the above table are defined with a default access of NONE.

The RACF resource access authorizations restrict access to the appropriate personnel as designated in the above table.

The RACF resource rules for the resources designated in the above table specify UACC(NONE) and NOWARNING.

The following commands are provided as a sample for implementing resource controls:

RDEFINE OPERCMDS prefix.** UACC(NONE) OWNER(ADMIN) AUDIT(FAILURE(READ))
RDEFINE OPERCMDES prefix.ACTIVATE UACC(NONE) OWNER(ADMIN) AUDIT(FAILURE(READ))
PERMIT prefix.ACTIVATE CLASS(OPERCMDS) ACCESS(UPDATE) ID(syspaudt)

Check Contents

Refer to the following report produced by the Data Set and Resource Data Collection:

- SENSITVE.RPT(ZMIM0020).

Automated Analysis
Refer to the following report produced by the Data Set and Resource Data Collection:

- PDI(ZMIM0020).

Verify that the accesses to resources and/or generic equivalent are properly restricted according to the requirements specified in CA MIM Resource Sharing Resources table in the z/OS STIG Addendum. If the following guidance is true, this is not a finding.

The RACF resources are defined with a default access of NONE.

The RACF resource access authorizations restrict access to the appropriate personnel.

The RACF resource access authorizations are defined with UACC(NONE) and NOWARNING.

Vulnerability Number

V-224441

Documentable

False

Rule Version

ZMIMR020

Severity Override Guidance

Refer to the following report produced by the Data Set and Resource Data Collection:

- SENSITVE.RPT(ZMIM0020).

Automated Analysis
Refer to the following report produced by the Data Set and Resource Data Collection:

- PDI(ZMIM0020).

Verify that the accesses to resources and/or generic equivalent are properly restricted according to the requirements specified in CA MIM Resource Sharing Resources table in the z/OS STIG Addendum. If the following guidance is true, this is not a finding.

The RACF resources are defined with a default access of NONE.

The RACF resource access authorizations restrict access to the appropriate personnel.

The RACF resource access authorizations are defined with UACC(NONE) and NOWARNING.

Check Content Reference

M

Target Key

4144