V-279532

Discussion

Remote access services, such as those providing remote access to network devices and information systems, which lack automated control capabilities, increase risk and make remote user access management difficult at best. Remote access is access to DOD nonpublic information systems by an authorized user (or an information system) communicating through an external, nonorganization-controlled network. Remote access methods include, for example, dial-up, broadband, and wireless. Operating system functionality (e.g., RDP) must be capable of taking enforcement action if the audit reveals unauthorized activity. Automated control of remote access sessions allows organizations to ensure ongoing compliance with remote access policies by enforcing connection rules of remote access applications on a variety of information system components (e.g., servers, workstations, notebook computers, smartphones, and tablets).

Check Content

Verify using remote access methods are prohibited or restricted.

1. Verify IPv4 configuration using the following command.

$ sudo systemctl status iptables.service
iptables.service - IPv4 firewall with iptables
Loaded: loaded (/usr/lib/systemd/system/iptables.service; enabled; vendor preset: disabled)
Active: active (exited) since Thu 2024-10-10 20:05:33 UTC; 1 day 7h ago

2. If IPv6 is in use, use the following command to verify IPv6 configuration.

$ sudo systemctl status ip6tables.service
ip6tables.service - IPv6 firewall with ip6tables
Loaded: loaded (/usr/lib/systemd/system/ip6tables.service; enabled; vendor preset: disabled)
Active: active (exited) since Thu 2024-10-10 20:05:36 UTC; 1 day 7h ago
 Main PID: 6641 (code=exited, status=0/SUCCESS)

If there are no iptables services "Loaded" and "Active", this is a finding.