| 2.5.4 Enable Firewall Stealth Mode | CIS Apple macOS 10.13 L1 v1.1.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 2.6.3 Enable Firewall | CIS Apple macOS 10.12 L1 v1.2.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 2.6.5 Review Application Firewall Rules | CIS Apple OSX 10.10 Yosemite L1 v1.2.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.1 Ignore Erroneous or Unwanted Queries - RFC 1918 10/8; addresses | CIS BIND DNS v3.0.1 Authoritative Name Server | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.1 Ignore Erroneous or Unwanted Queries - RFC 1918 10/8; addresses | CIS BIND DNS v3.0.1 Caching Only Name Server | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.1.1 Ensure IP forwarding is disabled (sysctl exec) | CIS Ubuntu Linux 14.04 LTS Workstation L1 v2.1.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.1.1 Ensure IP forwarding is disabled (sysctl.conf/sysctl.d) | CIS Ubuntu Linux 14.04 LTS Workstation L1 v2.1.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.1.2 Ensure packet redirect sending is disabled - 'sysctl net.ipv4.conf.all.send_redirects' | CIS Ubuntu Linux 14.04 LTS Workstation L1 v2.1.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.1.2 Ensure packet redirect sending is disabled - 'sysctl net.ipv4.conf.default.send_redirects' | CIS Ubuntu Linux 14.04 LTS Workstation L1 v2.1.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.2.2 Ensure ICMP redirects are not accepted - 'net.ipv4.conf.all.accept_redirects = 0 sysctl' | CIS Amazon Linux v2.1.0 L1 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.2.2 Ensure ICMP redirects are not accepted - 'sysctl net.ipv4.conf.all.accept_redirects' | CIS Ubuntu Linux 14.04 LTS Workstation L1 v2.1.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.2.3 Ensure secure ICMP redirects are not accepted - 'net.ipv4.conf.default.secure_redirects = 0 sysctl' | CIS Amazon Linux v2.1.0 L1 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.2.5 Ensure broadcast ICMP requests are ignored (sysctl.conf/sysctl.d) | CIS Ubuntu Linux 14.04 LTS Workstation L1 v2.1.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.2.6 Ensure bogus ICMP responses are ignored - /etc/sysctl.conf /etc/sysctl.d/* | CIS Amazon Linux v2.1.0 L1 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.2.6 Ensure bogus ICMP responses are ignored (sysctl exec) | CIS Ubuntu Linux 14.04 LTS Workstation L1 v2.1.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.2.7 Ensure Reverse Path Filtering is enabled - 'net.ipv4.conf.all.rp_filter' (sysctl.conf/sysctl.d) | CIS Ubuntu Linux 14.04 LTS Workstation L1 v2.1.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.2.7 Ensure Reverse Path Filtering is enabled - 'net.ipv4.conf.default.rp_filter = 1 /etc/sysctl.conf /etc/sysctl.d/*' | CIS Amazon Linux v2.1.0 L1 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.2.7 Ensure Reverse Path Filtering is enabled - 'net.ipv4.conf.default.rp_filter' (sysctl.conf/sysctl.d) | CIS Ubuntu Linux 14.04 LTS Workstation L1 v2.1.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.3.1 Ensure IPv6 router advertisements are not accepted - 'net.ipv6.conf.all.accept_ra' (sysctl.conf/sysctl.d) | CIS Ubuntu Linux 14.04 LTS Server L1 v2.1.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.3.1 Ensure IPv6 router advertisements are not accepted - 'net.ipv6.conf.all.accept_ra' (sysctl.conf/sysctl.d) | CIS Ubuntu Linux 14.04 LTS Workstation L1 v2.1.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.3.1 Ensure IPv6 router advertisements are not accepted - 'net.ipv6.conf.default.accept_ra' (sysctl.conf/sysctl.d) | CIS Ubuntu Linux 14.04 LTS Server L1 v2.1.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.3.2 Ensure IPv6 redirects are not accepted - 'sysctl net.ipv6.conf.all.accept_redirects' | CIS Ubuntu Linux 14.04 LTS Server L1 v2.1.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.3.2 Ensure IPv6 redirects are not accepted - 'sysctl net.ipv6.conf.default.accept_redirects' | CIS Ubuntu Linux 14.04 LTS Workstation L1 v2.1.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.5.1.2 Ensure loopback traffic is configured - output | CIS Aliyun Linux 2 L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.5.2.1 Ensure IPv6 default deny firewall policy - Chain INPUT | CIS Aliyun Linux 2 L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.5.2.2 Ensure IPv6 loopback traffic is configured | CIS Aliyun Linux 2 L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.5.2.2 Ensure outbound and established connections are configured | CIS SUSE Linux Enterprise 12 v3.2.1 L1 Workstation | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.5.2.3 Ensure IPv6 outbound and established connections are configured | CIS Aliyun Linux 2 L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.5.2.4 Ensure default deny firewall policy | CIS SUSE Linux Enterprise 12 v3.2.1 L1 Workstation | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.5.3.2 Ensure IPv6 outbound and established connections are configured | CIS SUSE Linux Enterprise 12 v3.2.1 L1 Workstation | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.5.3.4 Ensure IPv6 default deny firewall policy | CIS SUSE Linux Enterprise 12 v3.2.1 L1 Server | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.1 Ensure iptables is installed | CIS Amazon Linux v2.1.0 L1 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.1.3 Ensure ufw service is enabled - ufw | CIS Debian Family Server L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.1.5 Ensure outbound connections are configured | CIS Debian Family Server L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.2 Ensure default deny firewall policy - 'Chain FORWARD' | CIS Ubuntu Linux 14.04 LTS Workstation L1 v2.1.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.2 Ensure default deny firewall policy - 'Chain OUTPUT' | CIS Ubuntu Linux 14.04 LTS Workstation L1 v2.1.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.2 Ensure default deny firewall policy - Chain FORWARD | CIS Amazon Linux v2.1.0 L1 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.2 Ensure default deny firewall policy - Chain OUTPUT | CIS Amazon Linux v2.1.0 L1 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.3.1 Ensure IPv6 default deny firewall policy - FORWARD | CIS CentOS 6 Server L1 v3.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.3.4 Ensure IPv6 firewall rules exist for all open ports - iptables | CIS CentOS 6 Workstation L1 v3.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 9.3.6 Ensure 'Windows Firewall: Public: Settings: Apply local connection security rules' is set to 'No' | CIS Windows 7 Workstation Level 1 v3.2.0 | Windows | SYSTEM AND COMMUNICATIONS PROTECTION |
| MSS: (EnableICMPRedirect) Allow ICMP redirects to override OSPF generated routes | MSCT Windows 10 1809 v1.0.0 | Windows | SYSTEM AND COMMUNICATIONS PROTECTION |
| MSS: (EnableICMPRedirect) Allow ICMP redirects to override OSPF generated routes | MSCT Windows Server 2019 MS v1.0.0 | Windows | SYSTEM AND COMMUNICATIONS PROTECTION |
| Windows Defender Firewall: Protect all network connections | MSCT Windows 10 1803 v1.0.0 | Windows | SYSTEM AND COMMUNICATIONS PROTECTION |
| Windows Defender Firewall: Protect all network connections | MSCT Windows 10 1903 v1.19.9 | Windows | SYSTEM AND COMMUNICATIONS PROTECTION |
| Windows Defender Firewall: Protect all network connections | MSCT Windows Server 2019 DC v1.0.0 | Windows | SYSTEM AND COMMUNICATIONS PROTECTION |
| Windows Defender Firewall: Protect all network connections | MSCT Windows Server 2019 MS v1.0.0 | Windows | SYSTEM AND COMMUNICATIONS PROTECTION |
| Windows Defender Firewall: Protect all network connections | MSCT Windows Server v20H2 MS v1.0.0 | Windows | SYSTEM AND COMMUNICATIONS PROTECTION |
| Windows Firewall: Protect all network connections | MSCT Windows Server 2012 R2 DC v1.0.0 | Windows | SYSTEM AND COMMUNICATIONS PROTECTION |
| Windows Firewall: Protect all network connections | MSCT Windows Server 2016 MS v1.0.0 | Windows | SYSTEM AND COMMUNICATIONS PROTECTION |
