Ensure port lockdown for self IP is set

MoyenneNiveau 1Automatiséef5-bigip

Description

to secure the BIG-IP system from unwanted connection attempts on self-IP. FAILs if any self IP has allow-service all or default (Port Lockdown must be Allow None or Allow Custom). Audited against tmsh output with defaults shown: save the concatenated output of 'tmsh list auth password-policy all-properties', 'tmsh list auth source all-properties', 'tmsh list auth remote-user all-properties', 'tmsh list auth radius all-properties', 'tmsh list sys httpd all-properties', 'tmsh list sys sshd all-properties', 'tmsh list sys global-settings all-properties', 'tmsh list cli global-settings all-properties', 'tmsh list sys ntp', 'tmsh list sys snmp all-properties', 'tmsh list sys syslog' and 'tmsh list net self all-properties'. Patterns are scoped to the named top-level block.

Méthode de vérification

Méthode d'audit: Motif de configuration

Motif: (?m)^net self \S+ \{\n(?:[ \t]+[^\n]*\n)*?[ \t]+allow-service (?:all|default)\b

Méthode de correction

Méthode de correction: Recommandation ou correctif d'infrastructure

tmsh modify net self <self-ip> allow-service none (or) tmsh modify net self <self-ip> allow-service replace-all-with { tcp:443 } tmsh save sys config # CIS guidance: 1-Log in to the Configuration utility. 2-Go to Network > Self IPs. 3-Select the relevant self IP address. 4-If the specified interface does not need to listen to incoming connections ( Example BGP ,BDF ..etc) , set "Port Lockdown" to "Allow None" 5-If the specified interface need to listen for incoming connections , set "Port Lockdown" to "Allow Custom". Then in the "Custom List" add needed ports only.

Propriétés

Systèmes d'exploitation: Tous
Étiquettes: f5-bigipmanagement
Référence: CIS F5 Networks Benchmark v1.0.0 - 5.3 Ensure port lockdown for self IP is set

Vérifier cet hôte

Exécutez cette commande sur une machine que vous êtes autorisé à auditer. L'analyse est en lecture seule.

shell

tmaegis scan --target f5-bigip