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

CA MIM Resource Sharing installation data sets will be properly protected.

DISA Rule

SV-224627r1146353_rule

Vulnerability Number

V-224627

Group Title

SRG-OS-000080

Rule Version

ZMIMT000

Severity

CAT II

CCI(s)

Weight

10

Fix Recommendation

The ISSO will ensure that WRITE and/or greater access to CA MIM Resource Sharing installation data sets is limited to systems programmers only, and all WRITE and/or greater access is logged. READ access can be given to all authorized users. All failures and successful WRITE and/or greater accesses are logged.

The installing systems programmer will identify and document the product data sets and categorize them according to who will have WRITE and/or greater access and if required 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 data sets, and once documented will work with the ISSO to ensure they are properly restricted to the Access Control Program (ACP) active on the system.

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

Data sets to be protected will be:
SYS2.MIMGR
SYS3.MIMGR (Data sets that are not altered by product STCs; this can be more specific)

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

TSS PERMIT(<syspaudt>) DSN(SYS2.MIMGR.) ACCESS(R)
TSS PERMIT(<syspaudt>) DSN(SYS2.MIMGR.) ACCESS(ALL) ACTION(AUDIT)
TSS PERMIT(<tstcaudt>) DSN(SYS2.MIMGR.) ACCESS(R)
TSS PERMIT(<tstcaudt>) DSN(SYS2.MIMGR.) ACCESS(ALL) ACTION(AUDIT)
TSS PERMIT(<audtaudt>) DSN(SYS2.MIMGR.) ACCESS(R)
TSS PERMIT(authorized users) DSN(SYS2.MIMGR.) ACCESS(R)
TSS PERMIT(CA MIM STCs) DSN(SYS2.MIMGR.) ACCESS(R)
TSS PERMIT(<syspaudt>) DSN(SYS3.MIMGR.) ACCESS(R)
TSS PERMIT(<syspaudt>) DSN(SYS3.MIMGR.) ACCESS(ALL) ACTION(AUDIT)
TSS PERMIT(<tstcaudt>) DSN(SYS3.MIMGR.) ACCESS(R)
TSS PERMIT(<tstcaudt>) DSN(SYS3.MIMGR.) ACCESS(ALL) ACTION(AUDIT)
TSS PERMIT(<audtaudt>) DSN(SYS3.MIMGR.) ACCESS(R)
TSS PERMIT(authorized users) DSN(SYS3.MIMGR.) ACCESS(R)
TSS PERMIT(CA MIM STCs) DSN(SYS3.MIMGR.) ACCESS(R)

Check Contents

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

- SENSITVE.RPT(MIMRPT).

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

- PDI(ZMIM0000).

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

The TSS data set access authorizations restrict READ access to all authorized users.

The TSS data set access authorizations restrict WRITE and/or greater access to systems programming personnel.

The TSS data set access authorizations specify that all (i.e., failures and successes) WRITE and/or greater access are logged.

Vulnerability Number

V-224627

Documentable

False

Rule Version

ZMIMT000

Severity Override Guidance

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

- SENSITVE.RPT(MIMRPT).

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

- PDI(ZMIM0000).

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

The TSS data set access authorizations restrict READ access to all authorized users.

The TSS data set access authorizations restrict WRITE and/or greater access to systems programming personnel.

The TSS data set access authorizations specify that all (i.e., failures and successes) WRITE and/or greater access are logged.

Check Content Reference

M

Target Key

4177