From z/OS TSS STIG
Part of ACP00282
Associated with: CCI-000213 CCI-002234 CCI-002235
z/OS system commands provide a method of controlling the operating environment. Failure to properly control access to z/OS system commands could result in unauthorized personnel issuing sensitive system commands. This exposure may threaten the integrity and availability of the operating system environment, and compromise the confidentiality of customer data.
From a command screen enter: TSS WHOHAS OPERCMDS(MVS) Alternately: Refer to the following report produced by the Data Set and Resource Data Collection: - SENSITVE.RPT(ACP00282) - SENSITVE.RPT(WHOHOPER) – Alternate report Automated Analysis Refer to the following report produced by the Data Set and Resource Data Collection: - PDI(ACP00282) Access to MVS resource of the OPERCMDS class is restricted to a limited number of authorized users, and all access logged. Access to "MVS.**" is not allowed. Access to z/OS system commands as defined in the table entitled Required Controls on z/OS System Commands, in the z/OS STIG Addendum, is restricted to the appropriate personnel (e.g., operations staff, systems programming personnel, general users). NOTE: Use the GROUP category specified in the table referenced above as a guideline to determine appropriate personnel access to system commands. NOTE: The (MVS.SEND) Command will not be a finding if used by all. Access to specific z/OS system commands is logged as indicated in the table entitled Required Controls on z/OS System Commands, in the z/OS STIG Addendum. If any of the above is untrue for any z/OS system command resource, this is a FINDING. If all of the above is true, there is NO FINDING.
Ensure access to the MVS resource of the OPERCMDS class is restricted to a limited number of authorized users, and all access is logged. Ensure access to z/OS system commands as defined in the table entitled Required Controls on z/OS System Commands, in the z/OS STIG Addendum is restricted to the appropriate personnel (e.g., operations staff, systems programming personnel, general users). Ensure no access is granted at level MVS.**. NOTE: Use the GROUP category specified in the table referenced above as a guideline to determine appropriate personnel access to system commands. NOTE: The (MVS.SEND) Command will not be a finding if used by all. Example: TSS ADDTO(deptacid) OPERCMDS(MVS.) TSS PERMIT(usracid) OPERCMDS(MVS.ACTIVATE) ACTION(AUDIT) TSS PERMIT(usracid) OPERCMDS(MVS.CANCEL.JOB.) ACTION(AUDIT) TSS PERMIT(usracid) OPERCMDS(MVS.CONTROL.) ACCESS(UPDATE) ACTION(AUDIT) TSS PERMIT(usracid) OPERCMDS(MVS.DISPLAY.) ACCESS(READ) TSS PERMIT(usracid) OPERCMDS(MVS.MONITOR) ACCESS(READ) TSS PERMIT(usracid) OPERCMDS(MVS.STOPMN) ACCESS(READ)
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