WatchGuard : ICMP Error Handling - 'protocol-unreachable'

Information

ICMP Error messages can be used as a means to compromise sytems and networks. Appropriate configuration and filtering of these messages should be used to reduce potential threats.

Solution

In the Web UI navigate to the 'System' - > 'Global Settings' - > 'Networking' section. Uncheck the box for 'Protocol unreachable'.

See Also

https://www.sans.org/security-resources/idfaq/icmp_misuse.php

Item Details

Category: SYSTEM AND COMMUNICATIONS PROTECTION

References: 800-53|SC-7

Plugin: WatchGuard

Control ID: 298015dca7fc144a2bc88f1ba7138fadaece982b426a1872285b138f38a92491