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

IBM Z/OS TSOAUTH resources must be restricted to authorized users.

DISA Rule

SV-224072r561402_rule

Vulnerability Number

V-224072

Group Title

SRG-OS-000080-GPOS-00048

Rule Version

TSS0-TS-000010

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.

Weight

10

Fix Recommendation

Configure the TSOAUTH resource class to control sensitive TSO/E commands.

Note: The resource type, resources, and/or resource prefixes identified below are examples of a possible installation. The actual resource type, resources, and/or resource prefixes are determined when the product is actually installed on a system through the product’s installation guide and can be site specific.

Below is listed the access requirements for TSOAUTH resources. Ensure the guidelines for the resources and/or generic equivalent are followed.

-The ACCT authorization is restricted to security personnel.
-The CONSOLE authorization is restricted to authorized systems personnel (e.g., systems programming personnel, operations staff, etc.) and READ access may be given to all user when SDSF in install at the ISSOs discretion.
-The MOUNT authorization is restricted to DASD batch users only.
-The OPER authorization is restricted to authorized systems personnel (e.g., systems programming personnel, operations staff, etc.).
-The PARMLIB authorization is restricted to only z/OS systems programming personnel and READ access may be given to audit users.
-The TESTAUTH authorization is restricted to only z/OS systems programming personnel.

Check Contents

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

For each resource defined enter:
TSS WHOHAS(<tsoauth resource>)

If the following guidance is true, this is not a finding.

-The ACCT authorization is restricted to security personnel.
-The CONSOLE authorization is restricted to authorized systems personnel (e.g., systems programming personnel, operations staff, etc.) and READ access may be given to all user when SDSF in install at the ISSOs discretion.
-The MOUNT authorization is restricted to DASD batch users only.
-The OPER authorization is restricted to authorized systems personnel (e.g., systems programming personnel, operations staff, etc.).
-The PARMLIB authorization is restricted to only z/OS systems programming personnel and READ access may be given to auditors.
-The TESTAUTH authorization is restricted to only z/OS systems programming personnel.

Vulnerability Number

V-224072

Documentable

False

Rule Version

TSS0-TS-000010

Severity Override Guidance

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

For each resource defined enter:
TSS WHOHAS(<tsoauth resource>)

If the following guidance is true, this is not a finding.

-The ACCT authorization is restricted to security personnel.
-The CONSOLE authorization is restricted to authorized systems personnel (e.g., systems programming personnel, operations staff, etc.) and READ access may be given to all user when SDSF in install at the ISSOs discretion.
-The MOUNT authorization is restricted to DASD batch users only.
-The OPER authorization is restricted to authorized systems personnel (e.g., systems programming personnel, operations staff, etc.).
-The PARMLIB authorization is restricted to only z/OS systems programming personnel and READ access may be given to auditors.
-The TESTAUTH authorization is restricted to only z/OS systems programming personnel.

Check Content Reference

M

Target Key

4102

Comments