Cisco ASA
TMA-CISCO-ASA-2.5
Ensure ICMP is restricted for untrusted interfaces
Опис
Allows ICMP traffic for specific hosts or subnets and denies ICMP traffic for all other sources. ICMP is an important troubleshooting tool that can also be used to perform ICMP attacks on untrusted interfaces. For these interfaces, the ICMP traffic should be allowed only for specific hosts or subnets that are trusted by the Enterprise and should be ... Audited against the output of 'show running-config' (run 'terminal pager 0' first; 'more system:running-config' also works and shows unmasked secrets).
Како се проверава
Метод провере: Образац конфигурације
- Образац
(?m)^icmp deny any \S+
Како се исправља
Метод исправке: Смерница или закрпа инфраструктуре
! - Step 1: Acquire the untrusted interface name <untrusted_interface_name>, the trusted subnet and corresponding subnet mask - Step 2: Run the following command to allow ICMP from the trusted subnet to the untrusted interface. Repeat the command if there are more than one trusted subnets identified. icmp permit <subnet> <mask> <untrusted_interface_name> - Step 3: Run the following command to deny ICMP from all other sources to the untrusted interface. icmp deny any<untrusted_interface_name>
Својства
- Оперативни системи
- Било који
- Ознаке
- cisco-asanetworkmanagement-plane
- Референца
- CIS Cisco ASA 9.x Firewall Benchmark v1.1.0 - 2.5 Ensure ICMP is restricted for untrusted interfaces
Проверите овај рачунар
Покрените ово на рачунару за који имате дозволу за проверу. Скенирање ради у режиму само за читање.
tmaegis scan --target cisco-asa