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The application firewall must be enabled.


Overview

Finding ID Version Rule ID IA Controls Severity
V-67711 AOSX-11-001080 SV-82201r1_rule Medium
Description
The Application Firewall is the built-in firewall that comes with the OS X and must be enabled. 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 OS X 10.11 Security Technical Implementation Guide 2017-01-05

Details

Check Text ( C-68277r1_chk )
If an approved HBSS solution is installed, this is not applicable.

To check if the OS X firewall has been enabled, run the following command:

/usr/bin/sudo /usr/libexec/ApplicationFirewall/socketfilterfw --getglobalstate

If the result is "disabled", this is a finding.
Fix Text (F-73825r1_fix)
To enable the firewall run the following command:

/usr/bin/sudo /usr/libexec/ApplicationFirewall/socketfilterfw --setglobalstate on