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z/OS TADz for TSS Security Technical Implementation Guide - V7R2

  • Version/Release: V7R2
  • Published: 2025-09-28
  • Released: 2025-10-01
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This Security Technical Implementation Guide is published as a tool to improve the security of Department of Defense (DOD) information systems. The requirements are derived from the National Institute of Standards and Technology (NIST) 800-53 and related documents. Comments or proposed revisions to this document should be sent via email to the following address: disa.stig_spt@mail.mil.
b
Tivoli Asset Discovery for z/OS (TADz) install data sets are not properly protected.
CM-5 - Medium - CCI-001499 - V-225608 - SV-225608r1146371_rule
RMF Control
CM-5
Severity
Medium
CCI
CCI-001499
Version
ZTADT000
Vuln IDs
  • V-225608
  • V-16932
Rule IDs
  • SV-225608r1146371_rule
  • SV-28471
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.
Checks: C-27308r1146152_chk

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. If the following guidance is true, this is not a finding. The TSS data set rules for the data sets restrict WRITE and/or greater access to systems programming personnel. The TSS data set rules for the data sets does not specify that all (i.e., failures and successes) WRITE and/or greater access will be logged.

Fix: F-27296r1146370_fix

The ISSO will ensure that WRITE and/or greater access to program product data sets is limited to systems programmers only, and all WRITE and/or greater 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 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 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 data set 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)

b
Tivoli Asset Discovery for zOS (TADz) STC and/or batch data sets are not properly protected.
CM-5 - Medium - CCI-001499 - V-225609 - SV-225609r1146157_rule
RMF Control
CM-5
Severity
Medium
CCI
CCI-001499
Version
ZTADT001
Vuln IDs
  • V-225609
  • V-17067
Rule IDs
  • SV-225609r1146157_rule
  • SV-28549
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.
Checks: C-27309r1146155_chk

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 TSS 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 TSS data set rules for the data sets restrict READ access is restricted to any job scheduling products that are in use and auditors.

Fix: F-27297r1146156_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 Access Control Program (ACP) 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: TSS PERMIT(syspaudt) DSN(sys3.tadz.*.iq*.) ACCESS(R) TSS PERMIT(tadzmon) DSN(sys3.tadz.*.iq*.) ACCESS(R) TSS PERMIT(tadzinq) DSN(sys3.tadz.*.iq*.) ACCESS(R) TSS PERMIT(syspaudt) DSN(sys3.tadz.*.iq*.) ACCESS(ALL) TSS PERMIT(tadzmon) DSN(sys3.tadz.*.iq*.) ACCESS(ALL) TSS PERMIT(tadzinq) DSN(sys3.tadz.*.iq*.) ACCESS(ALL) TSS PERMIT(syspaudt) DSN(sys3.tadz.*.uiq.) ACCESS(R) TSS PERMIT(tadzmon) DSN(sys3.tadz.*.uiq.) ACCESS(R) TSS PERMIT(tadzinq) DSN(sys3.tadz.*.uiq.) ACCESS(R) TSS PERMIT(syspaudt) DSN(sys3.tadz.*.uiq.) ACCESS(ALL) TSS PERMIT(tadzmon) DSN(sys3.tadz.*.uiq.) ACCESS(ALL) TSS PERMIT(tadzinq) DSN(sys3.tadz.*.uiq.) ACCESS(ALL) TSS PERMIT(syspaudt) DSN(sys3.tadz.*.um.) ACCESS(R) TSS PERMIT(tadzmon) DSN(sys3.tadz.*.um.) ACCESS(R) TSS PERMIT(tadzinq) DSN(sys3.tadz.*.um.) ACCESS(R) TSS PERMIT(syspaudt) DSN(sys3.tadz.*.um.) ACCESS(ALL) TSS PERMIT(tadzmon) DSN(sys3.tadz.*.um.) ACCESS(ALL) TSS PERMIT(tadzinq) DSN(sys3.tadz.*.um.) ACCESS(ALL)

b
Tivoli Asset Discovery for z/OS (TADz) Started Task name(s) must be properly identified/defined to the system ACP.
IA-2 - Medium - CCI-000764 - V-225610 - SV-225610r1146160_rule
RMF Control
IA-2
Severity
Medium
CCI
CCI-000764
Version
ZTADT030
Vuln IDs
  • V-225610
  • V-17452
Rule IDs
  • SV-225610r1146160_rule
  • SV-28555
Tivoli Asset Discovery for z/OS (TADz) requires a started task(s) that will be restricted to certain resources, data sets and other system functions. By defining the started task as a userid to the system Access Control Program (ACP), it allows the ACP to control the access and authorized users that require these capabilities. Failure to properly control these capabilities, could compromise of the operating system environment, ACP, and customer data.
Checks: C-27310r1146158_chk

Refer to the following reports produced by the TSS Data Collection: - TSSCMDS.RPT(@ACIDS). Review TADz STC/Batch ACID(s). If the following attributes are defined, this is not a finding. FACILITY(STC, BATCH) PASSWORD(xxxxxxxx,0) SOURCE(INTRDR) NOSUSPEND

Fix: F-27298r1146159_fix

The TADz Systems Programmer and ISSO will ensure that the started task(s) for TADz is properly defined. Define the started task for TADz. Example: TSS CRE(TADZMON) DEPT(Dept) NAME('TADz STC') - FAC(STC) PASSWORD(password,0) - SOURCE(INTRDR) NOSUSPEND

b
IBM Tivoli Asset Discovery for zOS (TADz) Started task(s) must be properly defined to the Started Task Table ACID for Top Secret.
IA-2 - Medium - CCI-000764 - V-225611 - SV-225611r1146163_rule
RMF Control
IA-2
Severity
Medium
CCI
CCI-000764
Version
ZTADT032
Vuln IDs
  • V-225611
  • V-17454
Rule IDs
  • SV-225611r1146163_rule
  • SV-28562
Access to product resources should be restricted to only those individuals responsible for the application connectivity and who have a requirement to access these resources. Improper control of product resources could potentially compromise the operating system, ACP, and customer data.
Checks: C-27311r1146161_chk

Refer to the following report produced by the TSS Data Collection: - TSSCMDS.RPT(#STC). Automated Analysis Refer to the following report produced by the TSS Data Collection: - PDI(ZTAD0032). Verify that the IBM Tivoli Asset Discovery for zOS (TADz) started task(s) is (are) defined in the TSS STC record. If this guidance is true, this is not a finding.

Fix: F-27299r1146162_fix

The IBM Tivoli Asset Discovery for zOS (TADz) systemsprogrammer and the ISSO will ensure that a product's started task(s) is (are) properly identified and/or defined to the system ACP. A unique ACID must be assigned for the IBM Tivoli Asset Discovery for zOS (TADz) started task(s) through a corresponding STC table entry. The following sample set of commands is shown here as a guideline: TSS ADD(STC) PROCNAME(TADZMON) ACID(TADZMON)