From z/OS ACF2 STIG
Part of ACP00080
Associated with IA controls: DCCS-1, DCCS-2, ECAR-3, ECAR-2, ECAR-1, DCSL-1
Associated with: CCI-000213 CCI-001499 CCI-002234
This data set contains a large portion of the system initialization (IPL) programs and pointers to the master and alternate master catalog. Unauthorized access could result in the compromise of the operating system environment, ACP, and customer data.
a) Refer to the following report produced by the Data Set and Resource Data Collection: - SENSITVE.RPT(NUCLRPT) Automated Analysis Refer to the following report produced by the a Data Set and Resource Data Collection: - PDI(ACP00080) ___ The ACP data set rules for SYS1.NUCLEUS allow inappropriate access. ___ The ACP data set rules for SYS1.NUCLEUS do not restrict UPDATE and/or ALTER access to only z/OS systems programming personnel. ___ The ACP data set rules for SYS1.NUCLEUS do not specify that all (i.e., failures and successes) UPDATE and/or ALTER access will be logged. b) If all of the above are untrue, there is NO FINDING. c) If any of the above is true, this is a FINDING.
Review access authorization to critical system files. Evaluate the impact of correcting the deficiency. Develop a plan of action and implement the changes required to protect SYS1.NUCLEUS. The IAO will ensure that update and allocate access to SYS1.NUCLEUS is limited to system programmers only and all update and allocate access is logged.
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