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

Severity	Group ID	Group Title	Version	Rule ID	Date	STIG Version
medium	V-224538	SRG-OS-000259	ZTADR001	SV-224538r1145281_rule	2025-09-27	7

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

ℹ️ Check

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

✔️ Fix
Grant WRITE and/or greater access to Tivoli Asset Discovery for z/OS (TADz) STC and/or batch data sets 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 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. Identify if any additional groups have UPDATE access for specific data sets, and assure that they are properly restricted to the ACP (Access Control Program) active on the system. Data sets to be protected will be: SYS3.TADZ The following commands are provided as a sample for implementing data set controls: ad 'sys3.tadz..iq.*' uacc(none) owner(daztech) - audit(success(update) failures(read)) - data('TADZ Output Data') ad 'sys3.tadz..uiq.*' uacc(none) owner(daztech) - audit(success(update) failures(read)) - data('TADZ Output Data') ad 'sys3.tadz..um.*' uacc(none) owner(daztech) - audit(success(update) failures(read)) - data('TADZ Output Data') pe 'sys3.tadz..iq.' id(syspaudt) acc(a) pe 'sys3.tadz..iq.' id(tadzmon) acc(a) pe 'sys3.tadz..iq.' id(tadzinq) acc(a) pe 'sys3.tadz..uiq.*' id(syspaudt) acc(a) pe 'sys3.tadz..uiq.*' id(tadzmon) acc(a) pe 'sys3.tadz..uiq.*' id(tadzinq) acc(a) pe 'sys3.tadz..um.*' id(syspaudt) acc(a) pe 'sys3.tadz..um.*' id(tadzmon) acc(a) pe 'sys3.tadz..um.**' id(tadzinq) acc(a)

✔️ Fix

Grant WRITE and/or greater access to Tivoli Asset Discovery for z/OS (TADz) STC and/or batch data sets 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 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. Identify if any additional groups have UPDATE access for specific data sets, and assure that they are properly restricted to the ACP (Access Control Program) active on the system. Data sets to be protected will be: SYS3.TADZ The following commands are provided as a sample for implementing data set controls: ad 'sys3.tadz.*.iq*.**' uacc(none) owner(daztech) - audit(success(update) failures(read)) - data('TADZ Output Data') ad 'sys3.tadz.*.uiq.**' uacc(none) owner(daztech) - audit(success(update) failures(read)) - data('TADZ Output Data') ad 'sys3.tadz.*.um.**' uacc(none) owner(daztech) - audit(success(update) failures(read)) - data('TADZ Output Data') pe 'sys3.tadz.*.iq*.**' id(syspaudt) acc(a) pe 'sys3.tadz.*.iq*.**' id(tadzmon) acc(a) pe 'sys3.tadz.*.iq*.**' id(tadzinq) acc(a) pe 'sys3.tadz.*.uiq.**' id(syspaudt) acc(a) pe 'sys3.tadz.*.uiq.**' id(tadzmon) acc(a) pe 'sys3.tadz.*.uiq.**' id(tadzinq) acc(a) pe 'sys3.tadz.*.um.**' id(syspaudt) acc(a) pe 'sys3.tadz.*.um.**' id(tadzmon) acc(a) pe 'sys3.tadz.*.um.**' id(tadzinq) acc(a)