WatchGuard : ICMP Error Handling - 'host-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 'Host 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: 5c87fba12e8538cb7a5193774e4352c33862e3331cb95d6f2025726b036ebcbe