From z/OS ACF2 STIG
Part of ZSMS0020
Associated with: CCI-000213
DFSMS control data sets provide the configuration and operational characteristics of the system-managed storage environment. Failure to properly protect these data sets may result in unauthorized access. This exposure could compromise the availability and integrity of some system services and customer data.
a) Refer to the following report produced by the Data Set and Resource Data Collection: - SENSITVE.RPT(SMSRPT) Automated Analysis Refer to the following report produced by the Data Set and Resource Data Collection: - PDI(ZSMS0020) b) Review the logical parmlib data sets, example: SYS1.PARMLIB(IGDSMSxx), to identify the fully qualified file names for the following SMS data sets: Source Control Data Set (SCDS) Active Control Data Set (ACDS) Communications Data Set (COMMDS) Automatic Class Selection Routine Source Data Sets (ACS) ACDS Backup COMMDS Backup c) If the ACF2 data set rules for the SCDS, ACDS, COMMDS, and ACS data sets restrict UPDATE and ALLOCATE access to only systems programming personnel, this not is a finding d) If the ACF2 data set rules for the SCDS, ACDS, COMMDS, and ACS data sets do not restrict UPDATE and ALLOCATE access to only systems programming personnel, this is a finding. Note: At the discretion of the ISSM, DASD administrators are allowed UPDATE access to the control datasets.
Ensure that DFSMS control data sets restrict UPDATE or ALLOCATE access to system programmers responsible for DASD management. Justification is required for any additional access. Review the SYS1.PARMLIB(IGDSMSxx) data set to identify the fully qualified file names for the following SMS data sets: Source Control Data Set (SCDS) Active Control Data Set (ACDS) Communications Data Set (COMMDS) Automatic Class Selection Routine Source Data Sets (ACS) ACDS Backup COMMDS Backup Ensure the ACF2 data set rules for the SCDS, ACDS, COMMDS, and ACS data sets restrict UPDATE and ALLOCATE access to only systems programming personnel. Note: At the discretion of the ISSM, DASD administrators are allowed UPDATE access to the control datasets. Example: $KEY(S3D) $PREFIX(SYS3) DFSMS.MVA.ACDS UID(syspaudt) R(A) W(L) A(L) E(A) DFSMS.MVA.COMMDS UID(syspaudt) R(A) W(L) A(L) E(A) DFSMS.MVA.SCDS UID(syspaudt) R(A) W(L) A(L) E(A) DFSMS.MVA.ACS UID(syspaudt) R(A) W(L) A(L) E(A)
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