BMC MAINVIEW for z/OS STC datasets are not properly protected.

Severity	Group ID	Group Title	Version	Rule ID	Date	STIG Version
medium	V-224251	SRG-OS-000259	ZMVZA001	SV-224251r1141585_rule	2025-09-27	7

Description
BMC MAINVIEW for z/OS STC datasets have the ability to use privileged functions and/or have access to sensitive data. Failure to properly restrict access to these datasets could result in violating the integrity of the base product which could result in compromising the operating system or sensitive data.

ℹ️ Check
Refer to the following report produced by the dataset and Resource Data Collection: - SENSITVE.RPT(MVZSTC). Automated Analysis Refer to the following report produced by the dataset and Resource Data Collection: - PDI(ZMVZ0001). Verify that the accesses to the BMC MAINVIEW for z/OS STC datasets are properly restricted. If the following guidance is true, this is not a finding. The ACF2 dataset rules for the datasets restrict READ access to auditors and authorized users. The ACF2 dataset rules for the datasets restrict WRITE and/or greater access to systems programming personnel. The ACF2 dataset rules for the datasets restrict WRITE and/or greater access to the BMC MAINVIEW for z/OS's STC(s) and/or batch user(s).

ℹ️ Check

Refer to the following report produced by the dataset and Resource Data Collection: - SENSITVE.RPT(MVZSTC). Automated Analysis Refer to the following report produced by the dataset and Resource Data Collection: - PDI(ZMVZ0001). Verify that the accesses to the BMC MAINVIEW for z/OS STC datasets are properly restricted. If the following guidance is true, this is not a finding. The ACF2 dataset rules for the datasets restrict READ access to auditors and authorized users. The ACF2 dataset rules for the datasets restrict WRITE and/or greater access to systems programming personnel. The ACF2 dataset rules for the datasets restrict WRITE and/or greater access to the BMC MAINVIEW for z/OS's STC(s) and/or batch user(s).

✔️ Fix
The ISSO will ensure that WRITE and/or greater access to BMC MAINVIEW for z/OS STC datasets is limited to systems programmers and/or BMC MAINVIEW for z/OS'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. Datasets to be protected will be: SYS3.BMCVIEW (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) BMCVIEW.- UID(<syspaudt>) R(A) W(A) A(A) E(A) BMCVIEW.- UID(<tstcaudt>) R(A) W(A) A(A) E(A) BMCVIEW.- UID(MAINVIEW STCs) R(A) W(A) A(A) E(A) BMCVIEW.- UID(<audtaudt>) R(A) E(A) BMCVIEW.- UID(authorize users) R(A) E(A)

✔️ Fix

The ISSO will ensure that WRITE and/or greater access to BMC MAINVIEW for z/OS STC datasets is limited to systems programmers and/or BMC MAINVIEW for z/OS'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. Datasets to be protected will be: SYS3.BMCVIEW (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) BMCVIEW.- UID(<syspaudt>) R(A) W(A) A(A) E(A) BMCVIEW.- UID(<tstcaudt>) R(A) W(A) A(A) E(A) BMCVIEW.- UID(MAINVIEW STCs) R(A) W(A) A(A) E(A) BMCVIEW.- UID(<audtaudt>) R(A) E(A) BMCVIEW.- UID(authorize users) R(A) E(A)