The macOS Application Firewall must be enabled.
An XCCDF Rule
Description
Firewalls protect computers from network attacks by blocking or limiting access to open network ports. Application firewalls limit which applications are allowed to communicate over the network.
- ID
- SV-257242r905359_rule
- Version
- APPL-13-005050
- Severity
- Medium
- References
- Updated
Remediation Templates
A Manual Procedure
Configure the macOS system to enable the built-in firewall by installing the "Restrictions Policy" configuration profile.