STIGQter: STIG Summary: z/OS CA MIM for ACF2 Security Technical Implementation Guide Version: 7 Release: 2 Benchmark Date: 01 Oct 2025:

CA MIM Resource Sharing STC datasets will be properly protected.

DISA Rule

SV-224276r1141573_rule

Vulnerability Number

V-224276

Group Title

SRG-OS-000259

Rule Version

ZMIMA001

Severity

CAT II

CCI(s)

• CCI-001499 - Limit privileges to change software resident within software libraries.

Weight

10

Fix Recommendation

The ISSO will ensure that WRITE and/or greater access to CA MIM Resource Sharing STC datasets is limited to systems programmers and/or CA MIM Resource Sharing's STC(s) and/or batch user(s) only. READ access can be given to auditors and authorized users.

The installing systems programmer will identify and document the product datasets, categorize them according to who will have WRITE and/or greater access, and if required, ensure that all WRITE and/or greater access is logged. The installing systems programmer will identify if any additional groups have WRITE and/or greater access for specific datasets, and once documented will work with the ISSO to ensure they are properly restricted to the ACP (Access Control Program) active on the system.

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

Datasets to be protected will be:
SYS3.MIMGR (Datasets that are altered by the product's STCs can be more specific.)

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

$KEY(SYS3)
MIMGR.- UID(<syspaudt>) R(A) W(A) A(A) E(A)
MIMGR.- UID(<tstcaudt>) R(A) W(A) A(A) E(A)
MIMGR.- UID(CA MIM STCs) R(A) W(A) A(A) E(A)
MIMGR.- UID(<audtaudt>) R(A) E(A)
MIMGR.- UID(authorized users) R(A) E(A)

Check Contents

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

- SENSITVE.RPT(MIMSTC).

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

- PDI(ZMIM0001).

Verify that the accesses to the CA MIM Resource Sharing STC datasets are properly restricted. If the following guidance is true, this is not a finding.

The ACF2 dataset access authorizations restrict READ access to auditors and authorized users.

The ACF2 dataset access authorizations restrict WRITE and/or greater access to systems programming personnel.

The ACF2 dataset access authorizations restrict WRITE and/or greater access to the CA MIM Resource Sharing's STC(s) and/or batch user(s).

Vulnerability Number

V-224276

Documentable

False

Rule Version

ZMIMA001

Severity Override Guidance

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

- SENSITVE.RPT(MIMSTC).

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

- PDI(ZMIM0001).

Verify that the accesses to the CA MIM Resource Sharing STC datasets are properly restricted. If the following guidance is true, this is not a finding.

The ACF2 dataset access authorizations restrict READ access to auditors and authorized users.

The ACF2 dataset access authorizations restrict WRITE and/or greater access to systems programming personnel.

The ACF2 dataset access authorizations restrict WRITE and/or greater access to the CA MIM Resource Sharing's STC(s) and/or batch user(s).

Check Content Reference

M

Target Key

4115