Check: SRG-NET-000385-ALG-000138
Application Layer Gateway (ALG) SRG (SRG):
SRG-NET-000385-ALG-000138
(in version v1 r2)
Title
The ALG providing content filtering must generate an alert to, at a minimum, the ISSO and ISSM 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. Automated mechanisms can be used to send automatic alerts or notifications. Such automatic alerts or notifications can be conveyed in a variety of ways (e.g., telephonically, via electronic mail, via text message, or via websites). The ALG must either send the alert to a management console that is actively monitored by authorized personnel or use a messaging capability to send the alert directly to designated personnel.
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 an alert to, at a minimum, the ISSO and ISSM when unauthorized network services are detected. If the ALG does not generate an alert to, at a minimum, the ISSO and ISSM 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 an alert to, at a minimum, the ISSO and ISSM when unauthorized network services are detected.
Additional Identifiers
Rule ID: SV-68917r1_rule
Vulnerability ID: V-54671
Group Title: SRG-NET-000385-ALG-000138
Expert Comments
CCIs
Number | Definition |
---|---|
CCI-002684 |
The information system audits and/or alerts organization-defined personnel when unauthorized network services are detected. |
Controls
Number | Title |
---|---|
SI-4 (22) |
Unauthorized Network Services |