DFSMS control data sets are not protected in accordance with security requirements.

From z/OS ACF2 STIG

Part of ZSMS0020

Associated with IA controls: DCCS-1, ECCD-2, DCCS-2, ECCD-1

SV-3895r1_rule DFSMS control data sets are not protected in accordance with security requirements.

Vulnerability discussion

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.

Check content

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, there is NO 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.

Fix text

The IAO will 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. 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)

Pro Tips

Lavender hyperlinks in small type off to the right (of CSS class id, if you view the page source) point to globally unique URIs for each document and item. Copy the link location and paste anywhere you need to talk unambiguously about these things.

You can obtain data about documents and items in other formats. Simply provide an HTTP header Accept: text/turtle or Accept: application/rdf+xml.

Powered by sagemincer