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

IBM z/OS MCS consoles access authorization(s) for CONSOLE resource(s) must be properly protected.

DISA Rule

SV-223919r561402_rule

Vulnerability Number

V-223919

Group Title

SRG-OS-000080-GPOS-00048

Rule Version

TSS0-ES-000460

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

Ensure that all MCS consoles are defined to the SYSCONS resource class and READ access is limited to operators and system programmers.

Review the MCS console resources defined to z/OS and the ACP, and ensure they conform to those outlined below.

Each console defined in the CONSOLxx parmlib members is defined to TSS SYSCONS resource class and/or the SYSCONS resource class has the DEFPROT attribute.

The ACID associated with each console has access to the corresponding resource defined in the SYSCONS resource class.

Example:

TSS PERMIT(MMGMST) SYSCONS(MMGMST) ACCESS(READ)

Access authorization for SYSCONS resources restricts access to operations, the Master SCA, and system programming personnel.

TSS PERMIT(opersmpl) SYSCONS(MMGMST) ACCESS(READ)
TSS PERMIT(Master SCA) SYSCONS(MMGMST) ACCESS(READ)
TSS PERMIT(syspsmpl) SYSCONS(MMGMST) ACCESS(READ)

Check Contents

From the ISPF Command Shell enter:
TSS WHOOWNS SYSCONS(*)

For each Console defined enter:
TSS WHOHAS(<CONSOLE>)

If the console defined is not defined to the TSS SYSCONS resource class enter:
TSS LIST (RDT) RESCLASS(SYSCONS)

If the SYSCONS resource class does not have the DEPROT attribute, this is a finding.

Vulnerability Number

V-223919

Documentable

False

Rule Version

TSS0-ES-000460

Severity Override Guidance

From the ISPF Command Shell enter:
TSS WHOOWNS SYSCONS(*)

For each Console defined enter:
TSS WHOHAS(<CONSOLE>)

If the console defined is not defined to the TSS SYSCONS resource class enter:
TSS LIST (RDT) RESCLASS(SYSCONS)

If the SYSCONS resource class does not have the DEPROT attribute, this is a finding.

Check Content Reference

M

Target Key

4102

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