Tivoli Asset Discovery for z/OS (TADz) install data sets are not properly protected.

Severity	Group ID	Group Title	Version	Rule ID	Date	STIG Version
medium	V-225608	SRG-OS-000080	ZTADT000	SV-225608r1082573_rule	2025-03-05	7

Description
Tivoli Asset Discovery for z/OS (TADz) Install 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(TADZRPT) Automated Analysis Refer to the following report produced by the Data Set and Resource Data Collection: - PDI(ZTAD0000) Verify that access to the TADz Install data sets are properly restricted. The TSS data set rules for the data sets does not restrict UPDATE and/or ALTER access to systems programming personnel. The TSS data set rules for the data sets does not specify that all (i.e., failures and successes) UPDATE and/or ALTER access will be logged. If all of the above are untrue, this is not a finding. If any of the above is true, this is a finding.

ℹ️ Check

Refer to the following report produced by the Data Set and Resource Data Collection: - SENSITVE.RPT(TADZRPT) Automated Analysis Refer to the following report produced by the Data Set and Resource Data Collection: - PDI(ZTAD0000) Verify that access to the TADz Install data sets are properly restricted. The TSS data set rules for the data sets does not restrict UPDATE and/or ALTER access to systems programming personnel. The TSS data set rules for the data sets does not specify that all (i.e., failures and successes) UPDATE and/or ALTER access will be logged. If all of the above are untrue, this is not a finding. If any of the above is true, this is a finding.

✔️ Fix
The ISSO will ensure that update and allocate/create access to program product data sets is limited to system programmers only, and all update and allocate/create access is logged. Auditors should have read access. The installing systems programmer will identify and document the product data sets and categorize them according to who will have update and allocate/create access and if required that all update and allocate/create access is logged. The installing systems programmer will identify if any additional groups have update 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. Data sets to be protected will be: SYS2.TADZ SYS2.TADZ .V-.SHSIMOD1 (optional fully-qualified APF). SYS3.TADZ The following commands are provided as a sample for implementing dataset controls: TSS PERMIT(syspaudt) DSN(SYS2.TADZ.) ACCESS(R) TSS PERMIT(syspaudt) DSN(SYS2.TADZ.) ACCESS(ALL) ACTION(AUDIT) TSS PERMIT(audtaudt) DSN(SYS2.TADZ.) ACCESS(R) TSS PERMIT(syspaudt) DSN(sys2.tadz..shsimod1) ACCESS(R) TSS PERMIT(syspaudt) DSN(sys2.tadz..shsimod1) ACCESS(ALL) ACTION(AUDIT) TSS PERMIT(audtaudt) DSN(SYS2.TADZ.*.shsimod1) ACCESS(R) TSS PERMIT(syspaudt) DSN(SYS3.TADZ.) ACCESS(R) TSS PERMIT(syspaudt) DSN(SYS3.TADZ.) ACCESS(ALL) ACTION(AUDIT) TSS PERMIT(audtaudt) DSN(SYS3.TADZ.) ACCESS(R)

✔️ Fix

The ISSO will ensure that update and allocate/create access to program product data sets is limited to system programmers only, and all update and allocate/create access is logged. Auditors should have read access. The installing systems programmer will identify and document the product data sets and categorize them according to who will have update and allocate/create access and if required that all update and allocate/create access is logged. The installing systems programmer will identify if any additional groups have update 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. Data sets to be protected will be: SYS2.TADZ SYS2.TADZ .V-.SHSIMOD1 (optional fully-qualified APF). SYS3.TADZ The following commands are provided as a sample for implementing dataset controls: TSS PERMIT(syspaudt) DSN(SYS2.TADZ.) ACCESS(R) TSS PERMIT(syspaudt) DSN(SYS2.TADZ.) ACCESS(ALL) ACTION(AUDIT) TSS PERMIT(audtaudt) DSN(SYS2.TADZ.) ACCESS(R) TSS PERMIT(syspaudt) DSN(sys2.tadz.*.shsimod1) ACCESS(R) TSS PERMIT(syspaudt) DSN(sys2.tadz.*.shsimod1) ACCESS(ALL) ACTION(AUDIT) TSS PERMIT(audtaudt) DSN(SYS2.TADZ.*.shsimod1) ACCESS(R) TSS PERMIT(syspaudt) DSN(SYS3.TADZ.) ACCESS(R) TSS PERMIT(syspaudt) DSN(SYS3.TADZ.) ACCESS(ALL) ACTION(AUDIT) TSS PERMIT(audtaudt) DSN(SYS3.TADZ.) ACCESS(R)