The ALG must only allow incoming communications from organization-defined authorized sources routed to organization-defined authorized destinations.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-205008	SRG-NET-000364-ALG-000122	SV-205008r831385_rule		Medium

Description

Unrestricted traffic may contain malicious traffic which poses a threat to an enclave or to other connected networks. Additionally, unrestricted traffic may transit a network, which uses bandwidth and other resources. Access control policies and access control lists implemented on devices that control the flow of network traffic (e.g., application level firewalls and Web content filters), ensure the flow of traffic is only allowed from authorized sources to authorized destinations. Networks with different levels of trust (e.g., the Internet or CDS) must be kept separate.

STIG	Date
Application Layer Gateway Security Requirements Guide	2024-12-04

Details

Check Text (C-5276r396397_chk)

Verify the ALG only allows incoming communications from organization-defined authorized sources routed to organization-defined authorized destinations.

If the ALG allows incoming communications from unauthorized sources routed to unauthorized destinations, this is a finding.

Fix Text (F-5276r396398_fix)

Configure the ALG to only allow incoming communications from organization-defined authorized sources routed to organization-defined authorized destinations.