Examine firewall configuration rules for inbound and outbound connections to verify that it’s limited to which is necessary |
Examination of all inbound and outbound connections enables inspection and control of network traffic based on the IP address (source and destination), to prevent uncontrolled access from untrusted environments to trusted environments. This helps to prevent malicious individuals from accessing the organization’s network from unauthorized IP addresses, services, protocols, or ports.
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Related Alerts and Reports:
1.2.1.c: Deny All Other Traffic
Examine all "deny" rules to verify that all other inbound and outbound traffic is explicitly denied
1.2.2.a: Protect Configuration from Unauthorized Access
Examine desktop firewall configuration settings to verify they are secured from unauthorized access
1.2.2.b: Configurations are Synchronized
Examine desktop firewall configurations to verify they are synchronized
Find more information on 1.2.1.b: Traffic Limited to Necessary at Microsoft TechNet.