| 3.3.1.2 Ensure IPv6 loopback traffic is configured | CIS Google Container-Optimized OS v1.2.0 L2 Server | Unix | SECURITY ASSESSMENT AND AUTHORIZATION, SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.4.1.1 Ensure ufw is installed | CIS Ubuntu Linux 18.04 LTS v2.2.0 L1 Server | Unix | SECURITY ASSESSMENT AND AUTHORIZATION, SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.4.1.3 Ensure IPv4 outbound and established connections are configured | CIS Bottlerocket L2 | Unix | SECURITY ASSESSMENT AND AUTHORIZATION, SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.4.1.3 Ensure ufw service is enabled | CIS Ubuntu Linux 18.04 LTS v2.2.0 L1 Server | Unix | SECURITY ASSESSMENT AND AUTHORIZATION, SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.4.1.5 Ensure firewalld default zone is set | CIS Fedora 28 Family Linux Server L1 v2.0.0 | Unix | SECURITY ASSESSMENT AND AUTHORIZATION, SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.4.1.5 Ensure firewalld default zone is set | CIS Fedora 28 Family Linux Workstation L1 v2.0.0 | Unix | SECURITY ASSESSMENT AND AUTHORIZATION, SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.4.1.5 Ensure ufw outbound connections are configured | CIS Ubuntu Linux 20.04 LTS Workstation L1 v2.0.1 | Unix | SECURITY ASSESSMENT AND AUTHORIZATION, SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.4.1.6 Ensure network interfaces are assigned to appropriate zone | CIS Fedora 28 Family Linux Server L1 v2.0.0 | Unix | SECURITY ASSESSMENT AND AUTHORIZATION, SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.4.1.6 Ensure ufw firewall rules exist for all open ports | CIS Ubuntu Linux 20.04 LTS Workstation L1 v2.0.1 | Unix | SECURITY ASSESSMENT AND AUTHORIZATION, SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.4.1.7 Ensure firewalld drops unnecessary services and ports | CIS Fedora 28 Family Linux Workstation L1 v2.0.0 | Unix | SECURITY ASSESSMENT AND AUTHORIZATION, SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.4.2.1 Ensure nftables is installed | CIS Fedora 28 Family Linux Workstation L1 v2.0.0 | Unix | SECURITY ASSESSMENT AND AUTHORIZATION, SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.4.2.4 Ensure a nftables table exists | CIS Ubuntu Linux 20.04 LTS Workstation L1 v2.0.1 | Unix | SECURITY ASSESSMENT AND AUTHORIZATION, SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.4.2.4 Ensure iptables are flushed with nftables | CIS Fedora 28 Family Linux Workstation L1 v2.0.0 | Unix | SECURITY ASSESSMENT AND AUTHORIZATION, SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.4.2.5 Ensure an nftables table exists | CIS Fedora 28 Family Linux Workstation L1 v2.0.0 | Unix | SECURITY ASSESSMENT AND AUTHORIZATION, SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.4.2.6 Ensure nftables loopback traffic is configured | CIS Ubuntu Linux 18.04 LTS v2.2.0 L1 Server | Unix | SECURITY ASSESSMENT AND AUTHORIZATION, SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.4.2.6 Ensure nftables loopback traffic is configured | CIS Ubuntu Linux 18.04 LTS v2.2.0 L1 Workstation | Unix | SECURITY ASSESSMENT AND AUTHORIZATION, SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.4.2.9 Ensure nftables default deny firewall policy | CIS Fedora 28 Family Linux Server L1 v2.0.0 | Unix | SECURITY ASSESSMENT AND AUTHORIZATION, SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.4.2.9 Ensure nftables service is enabled | CIS Ubuntu Linux 18.04 LTS v2.2.0 L1 Server | Unix | SECURITY ASSESSMENT AND AUTHORIZATION, SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.4.2.10 Ensure nftables rules are permanent | CIS Ubuntu Linux 20.04 LTS Workstation L1 v2.0.1 | Unix | SECURITY ASSESSMENT AND AUTHORIZATION, SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.4.2.10 Ensure nftables rules are permanent | CIS Ubuntu Linux 18.04 LTS v2.2.0 L1 Workstation | Unix | SECURITY ASSESSMENT AND AUTHORIZATION, SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.4.2.10 Ensure nftables service is enabled | CIS Fedora 28 Family Linux Server L1 v2.0.0 | Unix | SECURITY ASSESSMENT AND AUTHORIZATION, SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.4.2.11 Ensure nftables rules are permanent | CIS Fedora 28 Family Linux Server L1 v2.0.0 | Unix | SECURITY ASSESSMENT AND AUTHORIZATION, SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.4.3.1.3 Ensure ufw is uninstalled or disabled with iptables | CIS Ubuntu Linux 20.04 LTS Server L1 v2.0.1 | Unix | SECURITY ASSESSMENT AND AUTHORIZATION, SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.4.3.2.1 Ensure iptables default deny firewall policy | CIS Ubuntu Linux 20.04 LTS Workstation L1 v2.0.1 | Unix | SECURITY ASSESSMENT AND AUTHORIZATION, SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.4.3.2.2 Ensure iptables loopback traffic is configured | CIS Ubuntu Linux 18.04 LTS v2.2.0 L1 Workstation | Unix | SECURITY ASSESSMENT AND AUTHORIZATION, SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.4.3.2.3 Ensure iptables outbound and established connections are configured | CIS Ubuntu Linux 20.04 LTS Server L1 v2.0.1 | Unix | SECURITY ASSESSMENT AND AUTHORIZATION, SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.4.3.2.3 Ensure iptables outbound and established connections are configured | CIS Ubuntu Linux 20.04 LTS Workstation L1 v2.0.1 | Unix | SECURITY ASSESSMENT AND AUTHORIZATION, SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.4.3.2.3 Ensure iptables outbound and established connections are configured | CIS Ubuntu Linux 18.04 LTS v2.2.0 L1 Workstation | Unix | SECURITY ASSESSMENT AND AUTHORIZATION, SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.4.3.2.4 Ensure iptables firewall rules exist for all open ports | CIS Ubuntu Linux 20.04 LTS Server L1 v2.0.1 | Unix | SECURITY ASSESSMENT AND AUTHORIZATION, SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.4.3.2.4 Ensure iptables firewall rules exist for all open ports | CIS Ubuntu Linux 18.04 LTS v2.2.0 L1 Workstation | Unix | SECURITY ASSESSMENT AND AUTHORIZATION, SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.4.3.2.5 Ensure iptables rules are saved | CIS Fedora 28 Family Linux Server L1 v2.0.0 | Unix | SECURITY ASSESSMENT AND AUTHORIZATION, SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.4.3.3.1 Ensure ip6tables loopback traffic is configured | CIS Fedora 28 Family Linux Workstation L1 v2.0.0 | Unix | SECURITY ASSESSMENT AND AUTHORIZATION, SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.4.3.3.2 Ensure ip6tables loopback traffic is configured | CIS Ubuntu Linux 20.04 LTS Server L1 v2.0.1 | Unix | SECURITY ASSESSMENT AND AUTHORIZATION, SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.4.3.3.3 Ensure ip6tables outbound and established connections are configured | CIS Ubuntu Linux 20.04 LTS Server L1 v2.0.1 | Unix | SECURITY ASSESSMENT AND AUTHORIZATION, SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.4.3.3.4 Ensure ip6tables default deny firewall policy | CIS Fedora 28 Family Linux Workstation L1 v2.0.0 | Unix | SECURITY ASSESSMENT AND AUTHORIZATION, SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.4.3.3.4 Ensure ip6tables firewall rules exist for all open ports | CIS Ubuntu Linux 20.04 LTS Workstation L1 v2.0.1 | Unix | SECURITY ASSESSMENT AND AUTHORIZATION, SYSTEM AND COMMUNICATIONS PROTECTION |
| 4.1.1 Ensure ufw is installed | CIS Ubuntu Linux 22.04 LTS v2.0.0 L1 Server | Unix | SECURITY ASSESSMENT AND AUTHORIZATION, SYSTEM AND COMMUNICATIONS PROTECTION |
| 4.1.1 Ensure ufw is installed | CIS Ubuntu Linux 22.04 LTS v2.0.0 L1 Workstation | Unix | SECURITY ASSESSMENT AND AUTHORIZATION, SYSTEM AND COMMUNICATIONS PROTECTION |
| 4.1.2 Ensure iptables-persistent is not installed with ufw | CIS Ubuntu Linux 22.04 LTS v2.0.0 L1 Server | Unix | SECURITY ASSESSMENT AND AUTHORIZATION, SYSTEM AND COMMUNICATIONS PROTECTION |
| 4.1.6 Ensure ufw firewall rules exist for all open ports | CIS Ubuntu Linux 22.04 LTS v2.0.0 L1 Server | Unix | SECURITY ASSESSMENT AND AUTHORIZATION, SYSTEM AND COMMUNICATIONS PROTECTION |
| 4.1.6 Ensure ufw firewall rules exist for all open ports | CIS Ubuntu Linux 22.04 LTS v2.0.0 L1 Workstation | Unix | SECURITY ASSESSMENT AND AUTHORIZATION, SYSTEM AND COMMUNICATIONS PROTECTION |
| 4.2.6 Ensure nftables loopback traffic is configured | CIS Ubuntu Linux 22.04 LTS v2.0.0 L1 Server | Unix | SECURITY ASSESSMENT AND AUTHORIZATION, SYSTEM AND COMMUNICATIONS PROTECTION |
| 4.3.1.1 Ensure iptables packages are installed | CIS Ubuntu Linux 22.04 LTS v2.0.0 L1 Server | Unix | SECURITY ASSESSMENT AND AUTHORIZATION, SYSTEM AND COMMUNICATIONS PROTECTION |
| 4.3.1.1 Ensure iptables packages are installed | CIS Ubuntu Linux 22.04 LTS v2.0.0 L1 Workstation | Unix | SECURITY ASSESSMENT AND AUTHORIZATION, SYSTEM AND COMMUNICATIONS PROTECTION |
| 4.3.1.2 Ensure nftables is not installed with iptables | CIS Ubuntu Linux 22.04 LTS v2.0.0 L1 Server | Unix | SECURITY ASSESSMENT AND AUTHORIZATION, SYSTEM AND COMMUNICATIONS PROTECTION |
| 4.3.1.3 Ensure ufw is uninstalled or disabled with iptables | CIS Ubuntu Linux 22.04 LTS v2.0.0 L1 Workstation | Unix | SECURITY ASSESSMENT AND AUTHORIZATION, SYSTEM AND COMMUNICATIONS PROTECTION |
| 4.3.2.2 Ensure iptables loopback traffic is configured | CIS Ubuntu Linux 22.04 LTS v2.0.0 L1 Server | Unix | SECURITY ASSESSMENT AND AUTHORIZATION, SYSTEM AND COMMUNICATIONS PROTECTION |
| 4.3.3.3 Ensure ip6tables outbound and established connections are configured | CIS Ubuntu Linux 22.04 LTS v2.0.0 L1 Workstation | Unix | SECURITY ASSESSMENT AND AUTHORIZATION, SYSTEM AND COMMUNICATIONS PROTECTION |
| 4.6.2 Ensure loopback traffic is blocked on external interfaces | CIS IBM AIX 7 v1.0.0 L1 | Unix | SECURITY ASSESSMENT AND AUTHORIZATION, SYSTEM AND COMMUNICATIONS PROTECTION |
| 4.6.3 Ensure that IPsec filters are active | CIS IBM AIX 7 v1.0.0 L1 | Unix | SECURITY ASSESSMENT AND AUTHORIZATION, SYSTEM AND COMMUNICATIONS PROTECTION |
