The F5 BIG-IP appliance providing content filtering must employ rate-based attack prevention behavior analysis.
An XCCDF Rule
Description
<VulnDiscussion>If the network does not provide safeguards against denial-of-service (DoS) attacks, network resources will be unavailable to users. Installation of content filtering gateways and application layer firewalls at key boundaries in the architecture mitigates the risk of DoS attacks. These attacks can be detected by matching observed communications traffic with patterns of known attacks and monitoring for anomalies in traffic volume/type. Detection components that use rate-based behavior analysis can detect attacks when signatures for the attack do not exist or are not installed. These attacks include zero-day attacks which are new attacks for which vendors have not yet developed signatures. Rate-based behavior analysis can detect sophisticated, distributed DoS (DDoS) attacks by correlating traffic information from multiple network segments or components. This requirement applies to the communications traffic functionality of the ALG as it pertains to handling communications traffic, rather than to the ALG device itself. Satisfies: SRG-NET-000362-ALG-000112, SRG-NET-000362-ALG-000126, SRG-NET-000192-ALG-000121</VulnDiscussion><FalsePositives></FalsePositives><FalseNegatives></FalseNegatives><Documentable>false</Documentable><Mitigations></Mitigations><SeverityOverrideGuidance></SeverityOverrideGuidance><PotentialImpacts></PotentialImpacts><ThirdPartyTools></ThirdPartyTools><MitigationControl></MitigationControl><Responsibility></Responsibility><IAControls></IAControls>
- ID
- SV-266156r1024848_rule
- Severity
- Medium
- References
- Updated
Remediation - Manual Procedure
From the BIG-IP GUI:
1. Security.
2. DoS Protection.
3. Device Protection.
4. Expand each of the applicable families (Network, DNS, SIP) one at a time depending on the traffic being handled by the BIG-IP and do the following for each:
a. Check the box at the top of the list of signatures to select all.