Ensure 'OSPF authentication' is enabled

ВысокийУровень 2Автоматическаяcisco-asa

Описание

Enables the authentication of OSPF neighbor before routing information is received from the neighbor. Enabling the routing protocol authentication prevents against attackers who can send wrong routing information in order to redirect traffic to their network or send malformed packets in order to saturate and to exhaust the control plane. Not applicable (passes) when no 'router ospf' is configured; otherwise fails if no interface has OSPF MD5 authentication. Audited against the output of 'show running-config' (run 'terminal pager 0' first; 'more system:running-config' also works and shows unmasked secrets).

Как проверяется

Метод проверки: Шаблон конфигурации

Шаблон: (?m)\A(?:[ \t]*(?:$|[^o \t\n]|o(?:$|[^s\n]|s(?:$|[^p\n]|p(?:$|[^f\n]|f(?:$|[^ \n]| (?:$|[^am\n]|a(?:$|[^u\n]|u(?:$|[^t\n]|t(?:$|[^h\n]|h(?:$|[^e\n]|e(?:$|[^n\n]|n(?:$|[^t\n]|t(?:$|[^i\n]|i(?:$|[^c\n]|c(?:$|[^a\n]|a(?:$|[^t\n]|t(?:$|[^i\n]|i(?:$|[^o\n]|o(?:$|[^n\n]|n(?:$|[^ \n]| (?:$|[^m\n]|m(?:$|[^e\n]|e(?:$|[^s\n]|s(?:$|[^s\n]|s(?:$|[^a\n]|a(?:$|[^g\n]|g(?:$|[^e\n]|e(?:$|[^\-\n]|-(?:$|[^d\n]|d(?:$|[^i\n]|i(?:$|[^g\n]|g(?:$|[^e\n]|e(?:$|[^s\n]|s(?:$|[^t\n]))))))))))))))))))))))))))))|m(?:$|[^e\n]|e(?:$|[^s\n]|s(?:$|[^s\n]|s(?:$|[^a\n]|a(?:$|[^g\n]|g(?:$|[^e\n]|e(?:$|[^\-\n]|-(?:$|[^d\n]|d(?:$|[^i\n]|i(?:$|[^g\n]|g(?:$|[^e\n]|e(?:$|[^s\n]|s(?:$|[^t\n]|t(?:$|[^\-\n]|-(?:$|[^k\n]|k(?:$|[^e\n]|e(?:$|[^y\n]|y(?:$|[^ \n]))))))))))))))))))))))))[^\n]*\n)*[ \t]*router ospf [^\n]*(?:\n(?:[ \t]*(?:$|[^o \t\n]|o(?:$|[^s\n]|s(?:$|[^p\n]|p(?:$|[^f\n]|f(?:$|[^ \n]| (?:$|[^am\n]|a(?:$|[^u\n]|u(?:$|[^t\n]|t(?:$|[^h\n]|h(?:$|[^e\n]|e(?:$|[^n\n]|n(?:$|[^t\n]|t(?:$|[^i\n]|i(?:$|[^c\n]|c(?:$|[^a\n]|a(?:$|[^t\n]|t(?:$|[^i\n]|i(?:$|[^o\n]|o(?:$|[^n\n]|n(?:$|[^ \n]| (?:$|[^m\n]|m(?:$|[^e\n]|e(?:$|[^s\n]|s(?:$|[^s\n]|s(?:$|[^a\n]|a(?:$|[^g\n]|g(?:$|[^e\n]|e(?:$|[^\-\n]|-(?:$|[^d\n]|d(?:$|[^i\n]|i(?:$|[^g\n]|g(?:$|[^e\n]|e(?:$|[^s\n]|s(?:$|[^t\n]))))))))))))))))))))))))))))|m(?:$|[^e\n]|e(?:$|[^s\n]|s(?:$|[^s\n]|s(?:$|[^a\n]|a(?:$|[^g\n]|g(?:$|[^e\n]|e(?:$|[^\-\n]|-(?:$|[^d\n]|d(?:$|[^i\n]|i(?:$|[^g\n]|g(?:$|[^e\n]|e(?:$|[^s\n]|s(?:$|[^t\n]|t(?:$|[^\-\n]|-(?:$|[^k\n]|k(?:$|[^e\n]|e(?:$|[^y\n]|y(?:$|[^ \n]))))))))))))))))))))))))[^\n]*))*\n?\z

Как исправляется

Метод исправления: Рекомендация или патч инфраструктуры

! - Step 1: Acquire the interface <interface_name> used by the firewall to receive OSPF routing updates and the area ID <area_id> - Step 2: Agree with the neighbor device on the authencation key <key_value> and determine an authentication key ID <key_id> - Step 3: Run the following to enable OSPF authentication interface <interface_name> ospf authentication message-digest ospf message-digest-key <key_id> md5 <key_value> exit area <area_id> authentication message-digest

Свойства

Операционные системы: Любая
Теги: cisco-asanetworkaaa
Источник: CIS Cisco ASA 9.x Firewall Benchmark v1.1.0 - 2.1.1 Ensure 'OSPF authentication' is enabled

Проверить этот хост

Выполните команду на компьютере, аудит которого вам разрешён. Сканирование работает только на чтение.

shell

tmaegis scan --target cisco-asa --level 2