STIGQter: STIG Summary: IBM z/OS ACF2 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-223615r533198_rule

Vulnerability Number

V-223615

Group Title

SRG-OS-000080-GPOS-00048

Rule Version

ACF2-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:
ACF
SET RESOURCE(TSO)
SET VERBOSE
LIST LIKE(-)

If the ACCT authorization is restricted to security personnel, this is not a finding.

If 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, this is not a finding.

If the MOUNT authorization is restricted to DASD batch users only, this is not a finding.

If the OPER authorization is restricted to authorized systems personnel (e.g., systems programming personnel, operations staff, etc), this is not a finding.

If the PARMLIB authorization is restricted to only z/OS systems programming personnel and READ access may be given to auditors, this is not a finding.

If the TESTAUTH authorization is restricted to only z/OS systems programming personnel, this is not a finding.

Vulnerability Number

V-223615

Documentable

False

Rule Version

ACF2-TS-000010

Severity Override Guidance

From the ISPF Command Shell enter:
ACF
SET RESOURCE(TSO)
SET VERBOSE
LIST LIKE(-)

If the ACCT authorization is restricted to security personnel, this is not a finding.

If 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, this is not a finding.

If the MOUNT authorization is restricted to DASD batch users only, this is not a finding.

If the OPER authorization is restricted to authorized systems personnel (e.g., systems programming personnel, operations staff, etc), this is not a finding.

If the PARMLIB authorization is restricted to only z/OS systems programming personnel and READ access may be given to auditors, this is not a finding.

If the TESTAUTH authorization is restricted to only z/OS systems programming personnel, this is not a finding.

Check Content Reference

M

Target Key

4100

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