STIGQter: STIG Summary: IBM z/OS TSS Security Technical Implementation Guide Version: 8 Release: 2 Benchmark Date: 23 Apr 2021:

CA-TSS WRITE or Greater access to System backup files must be limited to system programmers and/or batch jobs that perform DASD backups.

DISA Rule

SV-223911r561402_rule

Vulnerability Number

V-223911

Group Title

SRG-OS-000080-GPOS-00048

Rule Version

TSS0-ES-000380

Severity

CAT II

CCI(s)

• CCI-000213 - The information system enforces approved authorizations for logical access to information and system resources in accordance with applicable access control policies.
• CCI-002235 - The information system prevents non-privileged users from executing privileged functions to include disabling, circumventing, or altering implemented security safeguards/countermeasures.

Weight

10

Fix Recommendation

Obtain the high level indexes to backup data sets names define their access to be restricted by the System's ESM to System Programmers and batch jobs that perform the backups. Define READ Access to system backup data sets to be limited to auditors and others approved by the ISSM.

Check Contents

Collect from the storage management group the identification of the DASD backup files and all associated storage management ACIDs.

If ESM data set rules for system DASD backup files do not restrict WRITE or greater access to z/OS systems programming and/or batch jobs that perform DASD backups this is a finding.

If READ Access to system backup data sets is not limited to auditors and others approved by the ISSM this is a finding.

Vulnerability Number

V-223911

Documentable

False

Rule Version

TSS0-ES-000380

Severity Override Guidance

Collect from the storage management group the identification of the DASD backup files and all associated storage management ACIDs.

If ESM data set rules for system DASD backup files do not restrict WRITE or greater access to z/OS systems programming and/or batch jobs that perform DASD backups this is a finding.

If READ Access to system backup data sets is not limited to auditors and others approved by the ISSM this is a finding.

Check Content Reference

M

Target Key

4102

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