The VPN Gateway must implement physically or logically separate subnetworks to isolate organization-defined critical system components and functions.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-264329	SRG-NET-000715-VPN-000120	SV-264329r1138038_rule	CCI-004891	medium
Description
Separating critical system components and functions from other noncritical system components and functions through separate subnetworks may be necessary to reduce susceptibility to a catastrophic or debilitating breach or compromise that results in system failure. For example, physically separating the command and control function from the in-flight entertainment function through separate subnetworks in a commercial aircraft provides an increased level of assurance in the trustworthiness of critical system functions. This requirement also applies to Zero Trust initiatives.
STIG			Date
Virtual Private Network (VPN) Security Requirements Guide			2025-09-10

Related Frameworks

1 mapping across 3 frameworks

SCF0 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (3) 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.

CLD-03Cloud Infrastructure Security Subnet

0.50

DISA STIG Benchmark (XCCDF)V3R4intersects(normalised)
DISA CCI List2025-01-23equal to(normalised)
SCF Secure Traceability Relationship Mapping (STRM)2026.2intersects

NET-03.8Separate Subnet for Connecting to Different Security Domains

0.50

DISA STIG Benchmark (XCCDF)V3R4intersects(normalised)
DISA CCI List2025-01-23equal to(normalised)
SCF Secure Traceability Relationship Mapping (STRM)2026.2intersects

NET-06.1Security Management Subnets

0.50

DISA STIG Benchmark (XCCDF)V3R4intersects(normalised)
DISA CCI List2025-01-23equal to(normalised)
SCF Secure Traceability Relationship Mapping (STRM)2026.2intersects

NIST 800-530 mappings

No source states a mapping between these directly.

Also reachable in 2 hops (8) 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.

AC-17(2)Protection of Confidentiality and Integrity Using Encryption

1.00

DISA STIG Benchmark (XCCDF)V3R4intersects(normalised)
DISA STIG Benchmark (XCCDF)V3R2our copyintersects(normalised)
DISA STIG Benchmark (XCCDF)V3R2intersects(normalised)
DISA CCI List2025-01-23equal to(normalised)

AC-3Access Enforcement

1.00

DISA STIG Benchmark (XCCDF)V3R4intersects(normalised)
DISA STIG Benchmark (XCCDF)V3R3our copyintersects(normalised)
DISA STIG Benchmark (XCCDF)V3R3intersects(normalised)
DISA CCI List2025-01-23equal to(normalised)

CM-6Configuration Settings

1.00

DISA STIG Benchmark (XCCDF)V3R4intersects(normalised)
DISA STIG Benchmark (XCCDF)V1R1our copyintersects(normalised)
DISA STIG Benchmark (XCCDF)V1R1intersects(normalised)
DISA CCI List2025-01-23equal to(normalised)

SC-47Alternate Communications Paths

1.00

DISA STIG Benchmark (XCCDF)V3R4intersects(normalised)
DISA STIG Benchmark (XCCDF)V1R1our copyintersects(normalised)
DISA STIG Benchmark (XCCDF)V1R1intersects(normalised)
DISA CCI List2025-01-23equal to(normalised)

SC-7Boundary Protection

1.00

DISA STIG Benchmark (XCCDF)V3R4intersects(normalised)
DISA STIG Benchmark (XCCDF)V2R1our copyintersects(normalised)
DISA STIG Benchmark (XCCDF)V2R1intersects(normalised)
DISA CCI List2025-01-23equal to(normalised)

SC-7(11)Restrict Incoming Communications Traffic

1.00

DISA STIG Benchmark (XCCDF)V3R4intersects(normalised)
DISA STIG Benchmark (XCCDF)V3R4our copyintersects(normalised)
DISA STIG Benchmark (XCCDF)V3R4intersects(normalised)
DISA CCI List2025-01-23equal to(normalised)

SC-7(29)Separate Subnets to Isolate Functions

1.00

DISA STIG Benchmark (XCCDF)V3R4intersects(normalised)
DISA CCI List2025-01-23equal to(normalised)

SC-8Transmission Confidentiality and Integrity

1.00

DISA STIG Benchmark (XCCDF)V3R4intersects(normalised)
DISA STIG Benchmark (XCCDF)2our copyintersects(normalised)
DISA STIG Benchmark (XCCDF)2intersects(normalised)
DISA CCI List2025-01-23equal to(normalised)

CCI1 mapping

CCI-004891

1.00

DISA STIG Benchmark (XCCDF)V3R4intersects(normalised)

Details

Check Text (C-264329r1138038_chk)

Verify the VPN Gateway is configured to implement physically or logically separate subnetworks to isolate organization-defined critical system components and functions. If the VPN Gateway is not configured to implement physically or logically separate subnetworks to isolate organization-defined critical system components and functions, this is a finding.

Fix Text (F-68150r984315_fix)

Configure the VPN Gateway to implement physically or logically separate subnetworks to isolate organization-defined critical system components and functions.