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z/OS TADz for RACF Security Technical Implementation Guide

V7R2 · · · Released 01 Oct 2025 · 4 rules
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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.
Digest of Updates vs. V7R1 · 02 Apr 2025 ✎ 4

Comparison against the immediately-prior release (V7R1). Rule matching uses the Group Vuln ID. Content-change detection compares the rule’s description, check, and fix text after stripping inline markup — cosmetic-only edits aren’t flagged.

Content changes 4

  • V-224537 Medium checkfix Tivoli Asset Discovery for z/OS (TADz) Install data sets are not properly protected.
  • V-224538 Medium checkfix Tivoli Asset Discovery for zOS (TADz) STC and/or batch data sets are not properly protected.
  • V-224539 Medium descriptioncheck Tivoli Asset Discovery for z/OS (TADz) Started Task name(s) must be properly identified/defined to the system ACP.
  • V-224540 Medium checkfix IBM Tivoli Asset Discovery for zOS (TADz) Started task(s) must be properly defined to the STARTED resource class for RACF.
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b
Tivoli Asset Discovery for z/OS (TADz) Install data sets are not properly protected.
CM-5 - Medium - CCI-001499 - V-224537 - SV-224537r1145279_rule
RMF Control
CM-5
Severity
M
CCI
CCI-001499
Version
ZTADR000
Vuln IDs
  • V-224537
  • V-16932
Rule IDs
  • SV-224537r1145279_rule
  • SV-28470
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-26220r1144987_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 RACF data set rules for the data sets restrict WRITE and/or greater access to systems programming personnel. The RACF data set rules for the data sets specify that all (i.e., failures and successes) WRITE and/or greater access will be logged.

Fix: F-26208r1145278_fix

The ISSO will ensure that WRITE and/or greater access to program product data sets is limited to system programmers 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 set prefix to be protected will be: SYS2.TADZ. SYS2.TADZ.*.SHSIMOD1.** (optional fully-qualified APF). SYS3.TADZ. The following commands are provided as a sample for implementing data set controls: ad 'sys2.TADZ.**' uacc(none) owner(sys2) - audit(success(update) failures(read)) - data('Vendor DS Profile: TADZ') pe 'sys2.TADZ.**' id(syspaudt) acc(a) pe 'sys2.tadz.**' id(audtaudt) ad 'sys2.tadz.*.shsimod1.**' uacc(none) owner(sys2) - audit(success(update) failures(read)) - data('Vendor DS Profile: Tivoli Asset Discovery APF DS') pe 'sys2.tadz.*.shsimod1.**' id(syspaudt) acc(a) pe 'sys2.tadz.*.shsimod1.**' id(audtaudt) ad 'sys3.TADZ.**' uacc(none) owner(sys3) - audit(success(update) failures(read)) - data('TADZ Vendor Datasets') pe 'sys3.TADZ.**' id(syspaudt) acc(a) pe 'sys3.tadz.**' id(audtaudt) setr generic(dataset) refresh

b
Tivoli Asset Discovery for zOS (TADz) STC and/or batch data sets are not properly protected.
CM-5 - Medium - CCI-001499 - V-224538 - SV-224538r1145281_rule
RMF Control
CM-5
Severity
M
CCI
CCI-001499
Version
ZTADR001
Vuln IDs
  • V-224538
  • V-17067
Rule IDs
  • SV-224538r1145281_rule
  • SV-28548
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-26221r1144990_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 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: F-26209r1145280_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)

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-224539 - SV-224539r1145282_rule
RMF Control
IA-2
Severity
M
CCI
CCI-000764
Version
ZTADR030
Vuln IDs
  • V-224539
  • V-17452
Rule IDs
  • SV-224539r1145282_rule
  • SV-28554
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. Defining the started task as a userid to the system Access Control Program (ACP) allows the ACP to control the access and authorized users that require these capabilities. Failure to properly control these capabilities could compromise the operating system environment, ACP, and customer data.
Checks: C-26222r1144993_chk

Refer to the following report produced by the RACF Data Collection: - RACFCMDS.RPT(LISTUSER). Verify that the userid(s) for the TADz started task(s) is (are) properly defined. If the following attributes are defined, this is not a finding. PROTECTED

Fix: F-26210r520905_fix

The Systems Programmer and ISSO will ensure that the started task for TADz is properly defined. Define the started task for TADz. Example: au tadzmon name('stc, tivoli AD') nopass - dfltgrp(stc) owner(stc) - data('stc for tivoli asset discovery')

b
IBM Tivoli Asset Discovery for zOS (TADz) Started task(s) must be properly defined to the STARTED resource class for RACF.
IA-2 - Medium - CCI-000764 - V-224540 - SV-224540r1144997_rule
RMF Control
IA-2
Severity
M
CCI
CCI-000764
Version
ZTADR032
Vuln IDs
  • V-224540
  • V-17454
Rule IDs
  • SV-224540r1144997_rule
  • SV-28561
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-26223r1144995_chk

Refer to the following report produced by the RACF Data Collection: - DSMON.RPT(RACSPT). Automated Analysis Refer to the following report produced by the RACF Data Collection: - PDI(ZTAD0032). Verify that the IBM Tivoli Asset Discovery for zOS (TADz) started task(s) is (are) defined to the STARTED resource class profile and/or ICHRIN03 table entry, this is not a finding.

Fix: F-26211r1144996_fix

The IBM Tivoli Asset Discovery for zOS (TADz) system programmer 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 userid must be assigned for the IBM Tivoli Asset Discovery for zOS (TADz) started task(s) thru a corresponding STARTED class entry. The following sample set of commands is shown here as a guideline: rdef started TADZMON.** uacc(none) owner(admin) audit(all(read)) stdata(user(TADZMON) group(stc)) setr racl(started) ref