DFSMS resources must be protected in accordance with the proper security requirements.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-31	ZSMS0010	SV-7356r5_rule		Medium

Description

DFSMS provides data, storage, program, and device management functions for the operating system. Some DFSMS storage administration functions allow a user to obtain a privileged status and effectively bypass all ACP data set and volume controls. Failure to properly protect DFSMS resources may result in unauthorized access. This exposure could compromise the availability and integrity of the operating system environment, system services, and customer data.

STIG	Date
z/OS TSS STIG	2019-12-12

Details

Check Text ( C-23255r4_chk )

Refer to the following report produced by the Data Set and Resource Data Collection: - SENSITVE.RPT(ZSMS0010) Automated Analysis Refer to the following report produced by the Data Set and Resource Data Collection: - PDI(ZSMS0010) Ensure that all SMS resources and/or generic equivalent are properly protected according to the requirements specified. If the following guidance is true, this is not a finding. ___ The TSS resources are owned or DEFPROT is specified for the resource class. To avoid authorization failures once a base cluster is accessed via a PATH or AIX by a user or application that has authority to the PATH and AIX, but not the base cluster, APAR OA50118 must be applied. The resource STGADMIN.IGG.CATALOG.SECURITY.CHANGE is defined with access of NONE. The resource STGADMIN.IGG.CATALOG.SECURITY.BOTH is defined with access of READ Note: the resource STGADMIN.IGG.CATALOG.SECURITY.CHANGE can be defined with read access for migration purposes. If it is, a detailed migration plan must be documented and filed by the ISSM that determines a definite migration period. All access must be logged. At the completion of migration, this resource must be configured with access of NONE. If the resource STGADMIN.IGG.CATALOG.SECURITY.CHANGE and STGADMIN.IGG.CATALOG.SECURITY.BOTH are both defined, STGADMIN.IGG.CATALOG.SECURITY.BOTH takes precedence. ___ STGADMIN.DPDSRN.olddsname is restricted to System Programmers and all access is logged. ___ The STGADMIN.IGD.ACTIVATE.CONFIGURATION is restricted to System Programmers and all access is logged. ___ The STGADMIN.IGG.DEFDEL.UALIAS is restricted to Centralized and Decentralized Security personnel and System Programmers and all access is logged. ___ The following resources and prefixes may be available to the end-user. STGADMIN.ADR.COPY.CNCURRNT STGADMIN.ADR.COPY.FLASHCPY STGADMIN.ADR.COPY.TOLERATE.ENQF STGADMIN.ADR.DUMP.CNCURRNT STGADMIN.ADR.DUMP.TOLERATE.ENQF STGADMIN.ADR.RESTORE.TOLERATE.ENQF STGADMIN.ARC.ENDUSER. STGADMIN.IGG.ALTER.SMS ___ The following resource is restricted to Application Production Support Team members, Automated Operations, DASD managers, and System programmers. STGADMIN.IDC.DCOLLECT ___ The following resources are restricted to Application Production Support Team members, DASD managers, and System programmers. STGADMIN.ARC.CANCEL STGADMIN.ARC.LIST STGADMIN.ARC.QUERY STGADMIN.ARC.REPORT STGADMIN.DMO.CONFIG STGADMIN.IFG.READVTOC STGADMIN.IGG.DELGDG.FORCE ___ The following resource prefixes, at a minimum, are restricted to DASD managers and System programmers. STGADMIN.ADR STGADMIN.ANT STGADMIN.ARC STGADMIN.DMO STGADMIN.ICK STGADMIN.IDC STGADMIN.IFG STGADMIN.IGG STGADMIN.IGWSHCDS ___ The following Storage Administrator functions prefix is restricted to DASD managers and System programmers and all access is logged. STGADMIN.ADR.STGADMIN.

Fix Text (F-19905r5_fix)

Ensure that the following are properly specified in the ACP. (Note: The resources and/or resource prefixes identified below are examples of a possible installation. The actual resource type, resources, and/or resource prefixes are determined when the product is actually installed on a system through the product’s installation guide and can be site specific.) Below is listed the access requirements for SMS Resources. Ensure the guidelines for the resources and/or generic equivalent are followed. The TSS resources are owned and/or DEFPROT is specified for the resource class. Configure resource STGADMIN.IGG.CATALOG.SECURITY.CHANGE with no access. Note: the resource STGADMIN.IGG.CATALOG.SECURITY.CHANGE can be defined with read access for migration purposes. If it is a detailed migration plan must be documented and filed with the ISSM that determines a definite migration period. All access must be logged. At the completion of migration this resource must be configured with access = NONE. Configure STGADMIN.IGG.CATALOG.SECURITY.BOTH to have READ access for all. TSS ADD(ADMIN) IBMFAC(STGADMIN) or TSS REPLACE(RDT) RESCLASS(IBMFAC) ATTR(DEFPROT) The STGADMIN.DPDSRN.olddsname is restricted to System Programmers and all access is logged. Example: TSS PERMIT(syspaudt) IBMFAC(STGADMIN.DPDSRN.olddsname) - ACCESS(READ) ACTION(AUDIT) The STGADMIN.IGD.ACTIVATE.CONFIGURATION is restricted to System Programmers and all access is logged. Example: TSS PERMIT(syspaudt) IBMFAC(STGADMIN.IGD.ACTIVATE.CONFIGURATION) - ACCESS(READ) ACTION(AUDIT) The STGADMIN.IGG.DEFDEL.UALIAS is restricted to System Programmers and Security personnel and all access is logged. Example: TSS PERMIT(secaaudt) IBMFAC(STGADMIN.IGG.DEFDEL.UALIAS) - ACCESS(READ) ACTION(AUDIT) TSS PERMIT(secdaudt) IBMFAC(STGADMIN.IGG.DEFDEL.UALIAS) - ACCESS(READ) ACTION(AUDIT) TSS PERMIT(syspaudt) IBMFAC(STGADMIN.IGG.DEFDEL.UALIAS) - ACCESS(READ) ACTION(AUDIT) The following resources and prefixes may be available to the end-user. STGADMIN.ADR.COPY.CNCURRNT STGADMIN.ADR.COPY.FLASHCPY STGADMIN.ADR.COPY.TOLERATE.ENQF STGADMIN.ADR.DUMP.CNCURRNT STGADMIN.ADR.DUMP.TOLERATE.ENQF STGADMIN.ADR.RESTORE.TOLERATE.ENQF STGADMIN.ARC.ENDUSER. STGADMIN.IGG.ALTER.SMS Example: TSS PERMIT(endusers) IBMFAC(STGADMIN.ADR.COPY.CNCURRNT.) - ACCESS(READ) The following resource is restricted to Application Production Support Team members, Automated Operations, DASD managers, and System programmers. STGADMIN.IDC.DCOLLECT Example: TSS PERMIT(appsaudt) IBMFAC(STGADMIN.IDC.DCOLLECT) ACCESS(READ) TSS PERMIT(autoaudt) IBMFAC(STGADMIN.IDC.DCOLLECT) ACCESS(READ) TSS PERMIT(dasbaudt) IBMFAC(STGADMIN.IDC.DCOLLECT) ACCESS(READ) TSS PERMIT(dasdaudt) IBMFAC(STGADMIN.IDC.DCOLLECT) ACCESS(READ) TSS PERMIT(syspaudt) IBMFAC(STGADMIN.IDC.DCOLLECT) ACCESS(READ) The following resources are restricted to Application Production Support Team members, DASD managers, and System programmers. STGADMIN.ARC.CANCEL STGADMIN.ARC.LIST STGADMIN.ARC.QUERY STGADMIN.ARC.REPORT STGADMIN.DMO.CONFIG STGADMIN.IFG.READVTOC STGADMIN.IGG.DELGDG.FORCE Example: TSS PERMIT(appsaudt) IBMFAC(STGADMIN.ARC.CANCEL) ACCESS(READ) TSS PERMIT(dasbaudt) IBMFAC(STGADMIN.ARC.CANCEL) ACCESS(READ) TSS PERMIT(dasdaudt) IBMFAC(STGADMIN.ARC.CANCEL) ACCESS(READ) TSS PERMIT(syspaudt) IBMFAC(STGADMIN.ARC.CANCEL) ACCESS(READ) The following resource prefixes, at a minimum, are restricted to DASD managers and System programmers. STGADMIN.ADR STGADMIN.ANT STGADMIN.ARC STGADMIN.DMO STGADMIN.ICK STGADMIN.IDC STGADMIN.IFG STGADMIN.IGG STGADMIN.IGWSHCDS Example: TSS PERMIT(dasbaudt) IBMFAC(STGADMIN.ADR) ACCESS(READ) TSS PERMIT(dasdaudt) IBMFAC(STGADMIN.ADR) ACCESS(READ) TSS PERMIT(syspaudt) IBMFAC(STGADMIN.ADR) ACCESS(READ) The following Storage Administrator functions prefix is restricted to DASD managers and System programmers and all access is logged. STGADMIN.ADR.STGADMIN. Example: TSS PERMIT(dasbaudt) IBMFAC(STGADMIN.ADR.STGADMIN.) ACCESS(READ) – ACTION(AUDIT) TSS PERMIT(dasdaudt) IBMFAC(STGADMIN.ADR.STGADMIN.) ACCESS(READ) – ACTION(AUDIT) TSS PERMIT(syspaudt) IBMFAC(STGADMIN.ADR.STGADMIN.) ACCESS(READ) – ACTION(AUDIT)