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The ALG providing content filtering must be configured to integrate with a system-wide intrusion detection system.

Overview

Finding IDVersionRule IDIA ControlsSeverity
V-205012SRG-NET-000383-ALG-000135SV-205012r831388_ruleCCI-002656medium
Description
Without coordinated reporting between separate devices, it is not possible to identify the true scale and possible target of an attack. Integration of the ALG with a system-wide intrusion detection system supports continuous monitoring and incident response programs. This requirement applies to monitoring at internal boundaries using TLS gateways, web content filters, email gateways, and other types of ALGs. ALGs can work as part of the network monitoring capabilities to off-load inspection functions from the external boundary IDPS by performing more granular content inspection of protocols at the upper layers of the OSI reference model.
STIGDate
Application Layer Gateway Security Requirements Guide2025-09-15

Related Frameworks

1 mapping across 4 frameworks
SCF0 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (1) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

MON-01.1Intrusion Detection & Prevention Systems (IDS & IPS)
1.00
NIST 800-530 mappings

No source states a mapping between these directly.

Also reachable in 2 hops (9) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

AU-12Audit Record Generation
1.00
AU-3Content of Audit Records
1.00
AU-4(1)Transfer to Alternate Storage
1.00
AU-5Response to Audit Logging Process Failures
1.00
SC-7(9)Restrict Threatening Outgoing Communications Traffic
1.00
SI-3Malicious Code Protection
1.00
SI-4(1)System-wide Intrusion Detection System
1.00
SI-4(22)Unauthorized Network Services
1.00
SI-4(5)System-generated Alerts
1.00
CCI1 mapping
CCI-002656
1.00
NIST CSF 2.00 mappings

No source states a mapping between these directly.

Also reachable in 4 hops (1) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

DE.CM-01
1.00

Details

Check Text (C-205012r831388_chk)

If the ALG does not perform content filtering as part of the traffic management functions, this is not applicable. Verify the ALG integrates with a system-wide intrusion detection system. If the ALG does not integrate with a system-wide intrusion detection system, this is a finding.

Fix Text (F-5280r396410_fix)

If the ALG performs content filtering as part of the traffic management functionality, configure the ALG to integrate with a system-wide intrusion detection system.