Ensure 'OSPF authentication' is enabled

AltaNivel 2Automatizadacisco-asa

Descripción

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).

Cómo se verifica

Método de auditoría: Patrón de configuración

Patrón: (?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

Cómo se corrige

Método de corrección: Guía o parche de infraestructura

! - 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

Propiedades

Sistemas operativos: Cualquiera
Etiquetas: cisco-asanetworkaaa
Referencia: CIS Cisco ASA 9.x Firewall Benchmark v1.1.0 - 2.1.1 Ensure 'OSPF authentication' is enabled

Verificar este host

Ejecute esto en un equipo que tenga permiso para auditar. El escaneo es de solo lectura.

shell

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