V-266148

Discussion

Application protocol anomaly detection examines application layer protocols such as FTP to identify attacks based on observed deviations in the normal RFC behavior of a protocol or service. This type of monitoring allows for the detection of known and unknown exploits which exploit weaknesses of commonly used protocols. Since protocol anomaly analysis examines the application payload for patterns or anomalies, an FTP proxy must be included in the ALG. This ALG will be configured to inspect inbound and outbound FTP communications traffic to detect protocol anomalies such as malformed message and command insertion attacks.

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If the BIG-IP appliance does not provide intermediary/proxy services for FTP communications traffic, this is not applicable.

FTP Profile:
From the BIG-IP GUI:
1. Local Traffic.
2. Profiles.
3. Services.
4. FTP.
5. Click the name of the FTP profile.
6. Verify "Protocol Security" is checked.

FTP Virtual Server:
1. Local Traffic.
2. Virtual Servers.
3. Virtual Server List.
4. Click the name of the FTP virtual server.
5. Verify the FTP profile is selected in the "FTP Profile" drop-down list.

If the BIG-IP appliance is not configured to inspect inbound and outbound FTP communications traffic for protocol compliance and protocol anomalies, this is a finding.