Cyber Trackr - Free Compliance Library
Cyber Trackr
The Free Compliance Library

z/OS FDR for ACF2 Security Technical Implementation Guide - V7R2

  • Version/Release: V7R2
  • Published: 2025-09-23
  • Released: 2025-10-01
  • Expand All:
  • Severity:
  • Sort:
Compare

Select any two versions of this STIG to compare the individual requirements

View

Select any old version/release of this STIG to view the previous requirements

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.
c
FDR (Fast Dump Restore) security options are improperly specified.
CM-7 - High - CCI-000381 - V-224297 - SV-224297r1141497_rule
RMF Control
CM-7
Severity
High
CCI
CCI-000381
Version
ZFDR0040
Vuln IDs
  • V-224297
  • V-18014
Rule IDs
  • SV-224297r1141497_rule
  • SV-27074
Product configuration/parameters control the security and operational characteristics of products. If these parameter values are improperly specified, security and operational controls may be weakened. This exposure may threaten the availability of the product applications, and compromise the confidentiality of customer data.
Checks: C-25974r1141495_chk

The following steps are necessary for reviewing the FDR options: Issue the following command on the command line at option 6 in TSO to bring up the FDR ISPF dialog: EXEC 'SYS2.FDR.Vxxxx.CLIST(ABRALLOC)' Select "I" on the FDR primary panel for INSTALL. Select "4" on the FDR installation options panel to select SETOPT. Verify the FDR Program Library dataset on this panel specifies the following: Example: 'SYS2A.FDR.Vxxxx.LOADLIB'. Select "1" for SECURITY OPTIONS. Review the setting for ALLCALL Automated Analysis Refer to the following report produced by the z/OS Data Collection: - PDI(ZFDR0040). If ALLCALL is set to YES, this is not a finding.

Fix: F-25962r1141496_fix

The systems programmer will verify that the security option ALLCALL is set to YES. Execute the FDR ISPF dialog by entering the following on the command line: EXEC 'SYS2.FDR.VXXXX.CLIST(ABRALLOC)' Select "I" on the FDR PRIMARY OPTIONS MENU for INSTALL. Select "4" on the INSTALLATION OPTIONS MENU to select SETOPT - SET INSTALLATION OPTIONS IN THE FDR GLOBAL OPTIONS TABLE. Verify the FDR program library dataset on this panel is set to the current LOADLIB. Example: 'SYS2A.FDR.Vxxxx.LOADLIB'. Select "1" to select SECURITY OPTIONS. On the SET FDR GLOBAL SECURITY OPTIONS, review the ALLCALL setting and ensure it is set to YES.

b
Fast Dump Restore (FDR) install datasets are not properly protected.
CM-5 - Medium - CCI-001499 - V-224298 - SV-224298r1141500_rule
RMF Control
CM-5
Severity
Medium
CCI
CCI-001499
Version
ZFDRA000
Vuln IDs
  • V-224298
  • V-16932
Rule IDs
  • SV-224298r1141500_rule
  • SV-27160
Fast Dump Restore (FDR) install have the ability 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.
Checks: C-25975r1141498_chk

Refer to the following report produced by the dataset and Resource Data Collection: - SENSITVE.RPT(FDRRPT). Automated Analysis Refer to the following report produced by the dataset and Resource Data Collection: - PDI(ZFDR0000). Verify that access to the Fast Dump Restore (FDR) Install datasets is 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. The ACF2 dataset rules for the datasets do not specify that all (i.e., failures and successes) WRITE and/or greater access will be logged.

Fix: F-25963r1141499_fix

The ISSO will ensure that WRITE and/or greater access to Fast Dump Restore (FDR) install datasets 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 datasets, categorize them according to who will have WRITE and/or greater access, and if required, ensure that all WRITE and/or greater access is logged. The installing systems programmer will identify if any additional groups have UPDATE access for specific datasets, and once documented he will work with the ISSO to ensure that they are properly restricted to the ACP (Access Control Program ) active on the system. Datasets to be protected will be: SYS2.FDR SYS2A.FDR The following commands are provided as a sample for implementing dataset controls: $KEY(SYS2) FDR.- UID(syspaudt) R(A) W(L) A(L) E(A) FDR.- UID(dasdaudt) R(A) W(L) A(L) E(A) FDR.- UID(dasbaudt) R(A) W(L) A(L) E(A) FDR.- UID(audtaudt) R(A) E(A) $KEY(SYS2A) FDR.- UID(syspaudt) R(A) W(L) A(L) E(A) FDR.- UID(dasdaudt) R(A) W(L) A(L) E(A) FDR.- UID(dasbaudt) R(A) W(L) A(L) E(A) FDR.- UID(audtaudt) R(A) E(A) $KEY(SYS3) FDR.- UID(syspaudt) R(A) W(L) A(L) E(A) FDR.- UID(dasdaudt) R(A) W(L) A(L) E(A) FDR.- UID(dasbaudt) R(A) W(L) A(L) E(A) FDR.- UID(audtaudt) R(A) E(A)