The Cisco router must be configured to protect against known types of denial-of-service (DoS) attacks by employing organization-defined security safeguards.
An XCCDF Rule
Description
<VulnDiscussion>DoS is a condition when a resource is not 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 (e.g., firewalls performing packet filtering to block DoS attacks).</VulnDiscussion><FalsePositives></FalsePositives><FalseNegatives></FalseNegatives><Documentable>false</Documentable><Mitigations></Mitigations><SeverityOverrideGuidance></SeverityOverrideGuidance><PotentialImpacts></PotentialImpacts><ThirdPartyTools></ThirdPartyTools><MitigationControl></MitigationControl><Responsibility></Responsibility><IAControls></IAControls>
- ID
- SV-215701r879806_rule
- Severity
- Medium
- References
- Updated
Remediation - Manual Procedure
Configure the Cisco router to protect against known types of DoS attacks on the route processor. Implementing a CoPP policy as shown in the example below is a best practice method.
Step 1: Configure ACLs specific traffic types.
R1(config)#ip access-list extended CoPP_CRITICAL
R1(config-ext-nacl)#remark our control plane adjacencies are critical