The macOS Application Firewall must be enabled.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-230847 | APPL-11-005050 | SV-230847r599842_rule | Medium |
| 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. |
| STIG | Date |
|---|---|
| Apple macOS 11 (Big Sur) Security Technical Implementation Guide | 2022-02-16 |
Details
| Check Text ( C-33792r607428_chk ) |
|---|
| Verify that the built-in Firewall is enabled: # /usr/sbin/system_profiler SPConfigurationProfileDataType | /usr/bin/grep 'EnableFirewall\|EnableStealthMode' If the return is not "EnableFirewall = 1;" and "EnableStealthMode = 1;" this is a finding. |
| Fix Text (F-33765r607429_fix) |
|---|
| This setting is enforced using the "Restrictions Policy" configuration profile. |