Check: SRG-NET-000282-ALG-000071
Application Layer Gateway SRG:
SRG-NET-000282-ALG-000071
(in versions v2 r2 through v1 r2)
Title
The ALG that is part of a CDS must decompose information into organization-defined, policy-relevant subcomponents for submission to policy enforcement mechanisms before transferring information between different security domains. (Cat II impact)
Discussion
Policy enforcement mechanisms apply filtering, inspection, and/or sanitization rules to the policy-relevant subcomponents of information to facilitate flow enforcement prior to transferring such information to different security domains. Parsing transfer files facilitates policy decisions on source, destination, certificates, classification, attachments, and other security-related component differentiators. Policy enforcement mechanisms include the filtering and/or sanitization rules applied to information before transferring to a different security domain. The organization-defined subcomponents for CDS systems depend on the environment, data, and security boundaries. Organizations implementing CDS must follow the DoD-required process of testing, baselining, and risk assessment to ensure the rigor and accuracy necessary to rely upon a CDS for cross domain security.
Check Content
If the ALG is not part of a CDS, this is not applicable. Verify the ALG, when transferring information between different security domains, is configured to decompose information into organization-defined, policy-relevant subcomponents for submission to policy enforcement mechanisms before transferring information between different security domains. If the ALG is not configured to decompose information into organization-defined, policy-relevant subcomponents for submission to policy enforcement mechanisms before transferring information between different security domains, this is a finding.
Fix Text
If the ALG is part of a CDS, configure the ALG to decompose information into organization-defined, policy-relevant subcomponents for submission to policy enforcement mechanisms before transferring information between different security domains.
Additional Identifiers
Rule ID: SV-204972r987742_rule
Vulnerability ID: V-204972
Group Title: SRG-NET-000282
Expert Comments
CCIs
Number | Definition |
---|---|
CCI-000219 |
When transferring information between different security domains, decompose information into organization-defined policy-relevant subcomponents for submission to policy enforcement mechanisms. |
CCI-000366 |
Implement the security configuration settings. |