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

All IBM z/OS digital certificates in use must have a valid path to a trusted Certification authority.

DISA Rule

SV-223421r533198_rule

Vulnerability Number

V-223421

Group Title

SRG-OS-000066-GPOS-00034

Rule Version

ACF2-CE-000030

Severity

CAT II

CCI(s)

• CCI-000185 - The information system, for PKI-based authentication, validates certifications by constructing and verifying a certification path to an accepted trust anchor including checking certificate status information.
• CCI-002470 - The information system only allows the use of organization-defined certificate authorities for verification of the establishment of protected sessions.

Weight

10

Fix Recommendation

Remove or replace certificates where the issuer's distinguished name does not lead to a DoD PKI Root Certification Authority, External Root Certification Authority (ECA), or an approved External Partner PKI’s Root Certification Authority.

Check Contents

From the ISPF Command Shell enter:
RACDCERT CERT AUTH

If no certificate information is found, this is not a finding.

NOTE: Certificates are only valid when their Status is TRUST. Therefore, you may ignore certificates with the NOTRUST status during the following check.

If the digital certificate information indicates that the issuer's distinguished name leads to a DoD PKI Root Certification Authority, External Root Certification Authority (ECA), or an approved External Partner PKI’s Root Certification Authority, this is not a finding.

Reference the DoD Cyber Exchange website for complete information as to which certificates are acceptable (https://public.cyber.mil/pki-pke/interoperability/ or https://cyber.mil/pki-pke/interoperability/).

Examples of an acceptable DoD CA are:
DoD PKI Class 3 Root CA
DoD PKI Med Root CA

Vulnerability Number

V-223421

Documentable

False

Rule Version

ACF2-CE-000030

Severity Override Guidance

From the ISPF Command Shell enter:
RACDCERT CERT AUTH

If no certificate information is found, this is not a finding.

NOTE: Certificates are only valid when their Status is TRUST. Therefore, you may ignore certificates with the NOTRUST status during the following check.

If the digital certificate information indicates that the issuer's distinguished name leads to a DoD PKI Root Certification Authority, External Root Certification Authority (ECA), or an approved External Partner PKI’s Root Certification Authority, this is not a finding.

Reference the DoD Cyber Exchange website for complete information as to which certificates are acceptable (https://public.cyber.mil/pki-pke/interoperability/ or https://cyber.mil/pki-pke/interoperability/).

Examples of an acceptable DoD CA are:
DoD PKI Class 3 Root CA
DoD PKI Med Root CA

Check Content Reference

M

Target Key

4100

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