Title

The ALG providing content filtering must generate a log record when unauthorized network services are detected. (Cat II impact)

Discussion

Unauthorized or unapproved network services lack organizational verification or validation and therefore may be unreliable or serve as malicious rogues for valid services. Examples of network services include service-oriented architectures (SOAs), cloud-based services (e.g., infrastructure as a service, platform as a service, or software as a service), cross-domain, Voice Over Internet Protocol, Instant Messaging, auto-execute, and file sharing.

Check Content

If the ALG does not perform content filtering as part of the traffic management functions, this is not applicable. Verify the ALG generates a log record when unauthorized network services are detected. If the ALG does not generate a log record when unauthorized network services are detected, this is a finding.

Fix Text

If the ALG performs content filtering as part of the traffic management functionality, configure the ALG to generate a log record when unauthorized network services are detected.

Additional Identifiers

Rule ID: SV-68915r1_rule

Vulnerability ID: V-54669

Group Title: SRG-NET-000385-ALG-000137

Expert Comments

CCIs tied to check.

Controls tied to check. These are derived from the CCIs shown above.