The Palo Alto Networks security platform must use DoD-approved PKI rather than proprietary or self-signed device certificates.

DoD Instruction 8520.02, Public Key Infrastructure (PKI) and Public Key (PK) Enabling mandates that certificates must be issued by the DoD PKI or by a DoD-approved PKI for authentication, digital signature, or encryption.

Go to Device >> Certificate Management >> Certificates Installed Certificates are listed in the "Device Certificates" tab. If any of the have the name or identifier of a non-approved source in the "Issuer" field, this is a finding.

Obtain a Device Certificate from the DoD PKI or from a DoD-approved PKI: Go to Device >> Certificate Management >> Certificates Select "Import" (at the bottom of the pane). In the "Import Certificate" pane, complete each field. Select "OK".