STIGQter: STIG Summary: IBM z/OS ACF2 Security Technical Implementation Guide Version: 8 Release: 2 Benchmark Date: 23 Apr 2021:

IBM z/OS special privileges must be assigned on an as-needed basis to LOGONIDs associated with STCs and LOGONIDs that need to execute TSO in batch.

DISA Rule

SV-223545r533198_rule

Vulnerability Number

V-223545

Group Title

SRG-OS-000080-GPOS-00048

Rule Version

ACF2-OS-000090

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

Review all Logonids for the following and ensure that only authorized users with justification are given access to the privileges.

The ACCTPRIV privilege is restricted for used to the domain level security personnel (ISSO/ISSM).

The CONSOLE and OPERATOR privileges are restricted to authorized systems personnel (e.g., systems programming personnel, operations staff, etc).

The MOUNT privilege is restricted to DASD batch users only on an as-needed basis to execute TSO in batch.

Ensure that all privileges are kept to a minimum and are controlled and documented.

Check Contents

From the ISPF Command Shell enter:
ACF
SET LID
SET VERBOSE
LIST IF(ACCTPRIV OR CONSOLE OR OPERATOR OR MOUNT)

If the ACCTPRIV privilege is restricted to security personnel, this is not a finding.

If the CONSOLE and OPERATOR privileges are restricted to authorized systems personnel (e.g., systems programming personnel, operations staff, etc), this is not a finding.

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

Vulnerability Number

V-223545

Documentable

False

Rule Version

ACF2-OS-000090

Severity Override Guidance

From the ISPF Command Shell enter:
ACF
SET LID
SET VERBOSE
LIST IF(ACCTPRIV OR CONSOLE OR OPERATOR OR MOUNT)

If the ACCTPRIV privilege is restricted to security personnel, this is not a finding.

If the CONSOLE and OPERATOR privileges are restricted to authorized systems personnel (e.g., systems programming personnel, operations staff, etc), this is not a finding.

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

Check Content Reference

M

Target Key

4100

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