V-234217

Discussion

DoS prohibit a resource from being available for legitimate users. When this occurs, the organization either cannot accomplish its mission or must operate at degraded capacity. This requirement addresses the configuration of network devices to mitigate the impact of DoS attacks that have occurred or are ongoing on device availability. For each network device, known and potential DoS attacks must be identified and solutions for each type implemented. A variety of technologies exist to limit or, in some cases, eliminate the effects of DoS attacks (e.g., limiting processes or restricting the number of sessions the device opens at one time). Employing increased capacity and bandwidth, combined with service redundancy, may reduce the susceptibility to some DoS attacks. The security safeguards cannot be defined at the DoD-level because they vary according to the capabilities of the individual network devices and the security controls applied on the adjacent networks (for example, firewalls performing packet filtering to block DoS attacks).

Check Content

Log in to the FortiGate GUI with Super-Admin privilege.

1. Click Policy and Objects.
2. Click on IPv4 DoS Policy or IPv6 DoS Policy.
3. Identify the port designated for FortiGate device management.
4. Select the policy and click Edit.
5. Verify appropriate L3 Anomalies and L4 Anomalies are configured to meet the organization requirement.
6. Verify the policy is Enabled.

If appropriate DoS policies are not defined or are disabled, this is a finding.