From z/OS ACF2 STIG
Part of AAMV0450
Associated with IA controls: DCCS-1, DCCS-2, DCPD-1
Associated with: CCI-000271 CCI-000633 CCI-000634 CCI-001806
Many vendor products and applications require or provide operating system exits, SVCs, I/O appendages, special PPT privileges, and APF authorization. Without proper review, approval and adequate documentation of these system programs, the integrity and availability of the operating system, ACP, and customer data are subject to compromise.
Refer to the following reports produced by the z/OS Data Collection: - EXAM.RPT(APFXRPT) - EXAM.RPT(APFTSO) - EXAM.RPT(IOAPPEND) - EXAM.RPT(MVSXRPT) - EXAM.RPT(PPTXRPT) - EXAM.RPT(SVCIBM) - EXAM.RPT(SVCUSER) - EXAM.RPT(SVCESR) If the following items are in effect, this is not a finding: ___ The acquisition of any new IA and IA-enabled Commercial-Off-the-Shelf (COTS) products or any major upgrade meets the applicable Common Criteria, NIAP, or FIPS evaluation and validation requirements specified in CNSSP No. 11 and DODD 8500.1 or receives DAA approval. ___ All locally developed extensions to the operating system environment (i.e., operating system exits, SVCs, I/O appendages, modules requiring special PPT privileges and APF authorization) have been reviewed by the site’s system programmer to assure that requirements of CNSSP No. 11 and DODD 8500.1 are met and/or approved by site DAA.
Ensure any new system software or major upgrade of software that performs any of the following actions: - Runs authorized or with special privileges so it can use z/OS facilities restricted to authorized programs. - Requires the use of a new Supervisor Call routine (SVC), Program Call routine (PC), installation exit routine, or I/O appendage routine. - Modifies MVS in any way. - Requires the use of the Authorized Program Facility (APF). - Requires that the name of the program be placed in the MVS Program Properties Table (PPT). - Runs in Supervisor State. - Runs with a program status word (PSW) protection key between 0 through 7. - Runs with a userid that has special security privileges within the ACP. Has been approved by Common Criteria, NIAP, or FIPS evaluation and validation requirements specified in CNSSP No. 11 and DODD 8500.1 or receives DAA approval.
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