Tivoli Asset Discovery for zOS (TADz) STC and/or batch datasets are not properly protected.

Severity	Group ID	Group Title	Version	Rule ID	Date	STIG Version
medium	V-224345	SRG-OS-000259	ZTADA001	SV-224345r1141648_rule	2025-09-23	7

Description
Tivoli Asset Discovery for zOS (TADz) STC datasets provide the capability to use privileged functions and/or have access to sensitive data. Failure to properly restrict access to their 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(TADZSTC). Automated Analysis Refer to the following report produced by the dataset and Resource Data Collection: - PDI(ZTAD0001). Verify that access to the TADz STC and/or batch datasets are properly restricted. If the following guidance is true, this is not a finding. The ACF2 dataset rules for the datasets restrict WRITE and/or greater access to systems programming personnel and the product STC(s) and/or batch job(s). The ACF2 dataset rules for the datasets restrict READ access to job scheduling products. The ACF2 dataset rules for the datasets restrict READ access to auditors.

ℹ️ Check

Refer to the following report produced by the dataset and Resource Data Collection: - SENSITVE.RPT(TADZSTC). Automated Analysis Refer to the following report produced by the dataset and Resource Data Collection: - PDI(ZTAD0001). Verify that access to the TADz STC and/or batch datasets are properly restricted. If the following guidance is true, this is not a finding. The ACF2 dataset rules for the datasets restrict WRITE and/or greater access to systems programming personnel and the product STC(s) and/or batch job(s). The ACF2 dataset rules for the datasets restrict READ access to job scheduling products. The ACF2 dataset rules for the datasets restrict READ access to auditors.

✔️ Fix
Grant WRITE and/or greater access to Tivoli Asset Discovery for z/OS (TADz) STC and/or batch datasets are limited to systems programmers and TADz STC and/or batch jobs only. Grant READ access to any scheduling products that are in use. Grant READ access to auditors at the ISSO's discretion. Identify and document the product datasets 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. Identify if any additional groups have UPDATE access for specific datasets, and assure that they are properly restricted to the ACP (Access Control Program) active on the system. Datasets to be protected will be: SYS3.TADZ The following commands are provided as a sample for implementing dataset controls: $KEY(SYS3) TADZ.- UID(syspaudt) R(A) W(A) A(A) E(A) TADZ.- UID(audtaudt) R(A) E(A) TADZ.-.UM.- UID(batchid TADZINQ) R(A) W(A) A(A) E(A) TADZ.-.IQ.- UID(batchid TADZINQ) R(A) W(A) A(A) E(A) TADZ.-.UIQ.- UID(batchid TADZINQ) R(A) W(A) A(A) E(A) TADZ.- UID(stc id TADZMON) R(A) W(A) A(A) E(A)

✔️ Fix

Grant WRITE and/or greater access to Tivoli Asset Discovery for z/OS (TADz) STC and/or batch datasets are limited to systems programmers and TADz STC and/or batch jobs only. Grant READ access to any scheduling products that are in use. Grant READ access to auditors at the ISSO's discretion. Identify and document the product datasets 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. Identify if any additional groups have UPDATE access for specific datasets, and assure that they are properly restricted to the ACP (Access Control Program) active on the system. Datasets to be protected will be: SYS3.TADZ The following commands are provided as a sample for implementing dataset controls: $KEY(SYS3) TADZ.- UID(syspaudt) R(A) W(A) A(A) E(A) TADZ.- UID(audtaudt) R(A) E(A) TADZ.-.UM.- UID(batchid TADZINQ) R(A) W(A) A(A) E(A) TADZ.-.IQ.- UID(batchid TADZINQ) R(A) W(A) A(A) E(A) TADZ.-.UIQ.- UID(batchid TADZINQ) R(A) W(A) A(A) E(A) TADZ.- UID(stc id TADZMON) R(A) W(A) A(A) E(A)