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Firewall Security Requirements Guide


Overview

Date Finding Count (33)
2022-02-18 CAT I (High): 3 CAT II (Med): 28 CAT III (Low): 2
STIG Description
This Security Requirements Guide is published as a tool to improve the security of Department of Defense (DoD) information systems. The requirements are derived from the National Institute of Standards and Technology (NIST) 800-53 and related documents. Comments or proposed revisions to this document should be sent via email to the following address: disa.stig_spt@mail.mil.

Available Profiles



Findings (MAC III - Administrative Sensitive)

Finding ID Severity Title
V-206701 High The firewall must employ filters that prevent or limit the effects of all types of commonly known denial-of-service (DoS) attacks, including flooding, packet sweeps, and unauthorized port scanning.
V-206674 High The firewall must be configured to use filters that use packet headers and packet attributes, including source and destination IP addresses and ports, to prevent the flow of unauthorized or suspicious traffic between interconnected networks with different security policies (including perimeter firewalls and server VLANs).
V-206694 High The firewall must deny network communications traffic by default and allow network communications traffic by exception (i.e., deny all, permit by exception).
V-206708 Medium The firewall must restrict traffic entering the VPN tunnels to the management network to only the authorized management packets based on destination address.
V-206704 Medium The firewall must apply egress filters to traffic that is outbound from the network through any internal interface.
V-206707 Medium The premise firewall (located behind the premise router) must block all outbound management traffic.
V-206700 Medium If communication with the central audit server is lost, the firewall must generate a real-time alert to, at a minimum, the SCA and ISSO.
V-206703 Medium The firewall must apply ingress filters to traffic that is inbound to the network through any active external interface.
V-206692 Medium The firewall must block outbound traffic containing denial-of-service (DoS) attacks to protect against the use of internal information systems to launch any DoS attacks against other networks or endpoints.
V-223011 Medium The firewall must be configured to inspect all inbound and outbound traffic at the application layer.
V-206688 Medium The firewall must protect the traffic log from unauthorized deletion of local log files and log records.
V-223013 Medium The firewall must be configured to restrict it from accepting outbound packets that contain an illegitimate address in the source address field via an egress filter or by enabling Unicast Reverse Path Forwarding (uRPF).
V-206693 Medium The firewall implementation must manage excess bandwidth to limit the effects of packet flooding types of denial-of-service (DoS) attacks.
V-206685 Medium The firewall must be configured to use TCP when sending log records to the central audit server.
V-206684 Medium In the event that communication with the central audit server is lost, the firewall must continue to queue traffic log records locally.
V-206687 Medium The firewall must protect the traffic log from unauthorized modification of local log records.
V-206680 Medium The firewall must generate traffic log entries containing information to establish the location on the network where the events occurred.
V-206682 Medium The firewall must generate traffic log entries containing information to establish the outcome of the events, such as, at a minimum, the success or failure of the application of the firewall rule.
V-206714 Medium The firewall must generate traffic log records when attempts are made to send packets between security zones that are not authorized to communicate.
V-206713 Medium The firewall must generate traffic log records when traffic is denied, restricted, or discarded.
V-206712 Medium The firewall must be configured to allow authorized users to record a packet capture based IP, traffic type (TCP, UDP, or ICMP), or protocol.
V-206698 Medium In the event of a system failure of the firewall function, the firewall must be configured to save diagnostic information, log system messages, and load the most current security policies, rules, and signatures when restarted.
V-206699 Medium The firewall must be configured to send traffic log entries to a central audit server for management and configuration of the traffic log entries.
V-206675 Medium The firewall must immediately use updates made to policy enforcement mechanisms such as firewall rules, security policies, and security zones.
V-206676 Medium The firewall that filters traffic from the VPN access points must be configured with organization-defined filtering rules that apply to the monitoring of remote access traffic.
V-206678 Medium The firewall must generate traffic log entries containing information to establish what type of events occurred.
V-206679 Medium The firewall must generate traffic log entries containing information to establish when (date and time) the events occurred.
V-206690 Medium The firewall must disable or remove unnecessary network services and functions that are not used as part of its role in the architecture.
V-206696 Medium The firewall must fail to a secure state upon the failure of the following: system initialization, shutdown, or system abort.
V-206695 Medium The perimeter firewall must filter traffic destined to the internal enclave in accordance with the specific traffic that is approved and registered in the Ports, Protocols, and Services Management (PPSM) Category Assurance List (CAL), Vulnerability Assessments (VAs) for that the enclave.
V-223012 Medium The firewall must be configured to inspect all inbound and outbound IPv6 traffic for unknown or out-of-order extension headers.
V-206681 Low The firewall must generate traffic log entries containing information to establish the source of the events, such as the source IP address at a minimum.
V-206711 Low The firewall must generate an alert that can be forwarded to, at a minimum, the ISSO and ISSM when denial-of-service (DoS) incidents are detected.