STIGQter: STIG Summary: IBM z/OS RACF Security Technical Implementation Guide Version: 8 Release: 3 Benchmark Date: 23 Apr 2021:

IBM z/OS System datasets used to support the VTAM network must be properly secured.

DISA Rule

SV-223869r604139_rule

Vulnerability Number

V-223869

Group Title

SRG-OS-000080-GPOS-00048

Rule Version

RACF-VT-000010

Severity

CAT II

CCI(s)

• CCI-001499 - The organization limits privileges to change software resident within software libraries.
• CCI-000213 - The information system enforces approved authorizations for logical access to information and system resources in accordance with applicable access control policies.

Weight

10

Fix Recommendation

Configure RACF data set rules for all VTAM system data sets restrict access to only network systems programming staff. These data sets include libraries containing VTAM load modules and exit routines, and VTAM start options and definition statements.

Auditors may have READ access as documented by and approved by the ISSM.

The following sample RACF commands show proper definitions/permissions for VTAM datasets:

AD 'SYS1.VTAM*.**' UACC(NONE) OWNER(SYS1) -
AUDIT(SUCCESS(UPDATE) FAILURES(READ)) -
DATA('IBM VTAM DS PROFILE: REF SRR PDI ZVTM0018')
PE 'SYS1.VTAM.**' ID(<syspsmpl>) ACC(A)

AD 'SYS1.VTAMLIB.**' UACC(NONE) OWNER(SYS1) -
AUDIT(SUCCESS(UPDATE) FAILURES(READ)) -
DATA('IBM VTAM APF DS PROFILE: REF SRR PDI ZVTM0018')
PE 'SYS1.VTAMLIB.**' ID(<syspsmpl>) ACC(A)

AD 'SYS1.VTAM.SISTCLIB.**' UACC(NONE) OWNER(SYS1) -
AUDIT(SUCCESS(UPDATE) FAILURES(READ)) -
DATA('IBM VTAM APF DS PROFILE: REF SRR PDI ZVTM0018')
PE 'SYS1.VTAM.SISTCLIB.**' ID(<syspsmpl>) ACC(A)

AD 'SYS3.VTAM.**' UACC(NONE) OWNER(SYS3) -
AUDIT(SUCCESS(UPDATE) FAILURES(READ)) -
DATA('VTAM CUSTOMIZED DS: REF SRR PDI ZVTM0018')
PE 'SYS3.VTAM.**' ID(<syspsmpl>) ACC(A)

AD 'SYS3.VTAMLIB.**' UACC(NONE) OWNER(SYS3) -
AUDIT(SUCCESS(UPDATE) FAILURES(READ)) -
DATA('IBM VTAM APF DS PROFILE: REF SRR PDI ZVTM0018')
PE 'SYS3.VTAMLIB.**' ID(<syspsmpl>) ACC(A)

SETR GENERIC(DATASET) REFRESH

Check Contents

Determine data set names containing all VTAM start options, configuration lists, network resource definitions, commands, procedures, exit routines, all SMP/E TLIBs, and all SMP/E DLIBs used for installation and in development/production VTAM environments.

If RACF data set rules for all VTAM system data sets restrict access to only network systems programming staff, this is not a finding.

If RACF data set rules for all VTAM system data sets all READ access to auditors only, this is not a finding.

Vulnerability Number

V-223869

Documentable

False

Rule Version

RACF-VT-000010

Severity Override Guidance

Determine data set names containing all VTAM start options, configuration lists, network resource definitions, commands, procedures, exit routines, all SMP/E TLIBs, and all SMP/E DLIBs used for installation and in development/production VTAM environments.

If RACF data set rules for all VTAM system data sets restrict access to only network systems programming staff, this is not a finding.

If RACF data set rules for all VTAM system data sets all READ access to auditors only, this is not a finding.

Check Content Reference

M

Target Key

4101

Comments