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The Ubuntu operating system must configure the uncomplicated firewall to rate-limit impacted network interfaces.

An XCCDF Rule

Description

<VulnDiscussion>Denial of service (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 the operating system to mitigate the impact of DoS attacks that have occurred or are ongoing on system availability. For each system, 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 establishing memory partitions). Employing increased capacity and bandwidth, combined with service redundancy, may reduce the susceptibility to some 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-238367r853444_rule
Severity
Medium
References
Updated



Remediation - Manual Procedure

Configure the application firewall to protect against or limit the effects of DoS attacks by ensuring the Ubuntu operating system is implementing rate-limiting measures on impacted network interfaces. 
 
Check all the services listening to the ports with the following command: 
 
$ sudo ss -l46ut