ACF2 APPLDEF GSO record if used must have supporting documentation indicating the reason it was used.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-223488 | ACF2-ES-000700 | SV-223488r991589_rule | CCI-000366 | low |
| Description | ||||
| Failure to restrict network connectivity only to authorized systems permits inbound connections from malicious systems. It also permits outbound connections that may facilitate exfiltration of DoD data. | ||||
| STIG | Date | |||
| IBM z/OS ACF2 Security Technical Implementation Guide | 2025-06-24 | |||
Details
Check Text (C-223488r991589_chk)
From the ACF Command screen enter:
SET CONTROL(GSO)
LIST LIKE(APPLDEF-)
If the GSO APPLDEF record does not exist, this is not a finding.
If the GSO APPLDEF record does exist and no supporting documentation is available, this is a finding.
Fix Text (F-25149r504571_fix)
For any APPLDEF GSO record used, it must have supporting documentation indicating the reason it was used.
The APPLDEF record is optional.