Free Tool: 1.2: Restrict Connections Between Untrusted Networks and CDE

Examination of desktop firewall configurations to verify that connections from untrusted networks to workstations in CDE are restricted


Action1 Customers

An "untrusted" network is a network that is external to the organization and outside of the organization’s ability to control and manage. Action1 automates examination of desktop firewall configurations on every single endpoint within cardholder data environments. This helps to verify that connections between untrusted networks and endpoints with cardholder data are restricted on the endpoint connectivity level, as the last line of defense in case the network-level firewall mechanism fails to restrict such connections properly. Proper implementation of connection restrictions can help to prevent malicious individuals from accessing the organization’s endpoints from external (untrusted) locations.

1.2.1.b: Traffic Limited to Necessary
    Examine firewall configuration rules for inbound and outbound connections to verify that it’s limited to which is necessary
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

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1.2: Restrict Connections Between Untrusted Networks and CDE

Find more information on 1.2: Restrict Connections Between Untrusted Networks and CDE at Microsoft TechNet.