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Forescout must be configured so that all client machines are assessed by Forescout with exceptions that are allowed to bypass Forescout based on account or account type, as approved by the information system security manager (ISSM) and documented in the System Security Plan (SSP). This is required for compliance with C2C Step 1.

Overview

Finding IDVersionRule IDIA ControlsSeverity
V-233314FORE-NC-000060SV-233314r919219_ruleCCI-000213high
Description
The NAC gateway provides the policy enforcement allowing or denying the endpoint to the network. Unauthorized endpoints that bypass this control present a risk to the organization's data and network. The focus of this requirement is on identification, documentation, and approval of devices that will bypass the NAC. This is not a requirement that all traffic flow through the NAC.
STIGDate
Forescout Network Access Control Security Technical Implementation Guide2025-06-12

Related Frameworks

1 mapping across 5 frameworks
SCF0 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (20) 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.

CFG-02Secure Baseline Configurations
1.00
CRY-01Use of Cryptographic Controls
1.00
DCH-01Data Protection
1.00
HRS-02Position Categorization
1.00
HRS-11Separation of Duties (SoD)
1.00
IAC-01Identity & Access Management (IAM)
1.00
IAC-01.2Authenticate, Authorize and Audit (AAA)
1.00
IAC-02Identification & Authentication for Organizational Users
1.00
IAC-03Identification & Authentication for Non-Organizational Users
1.00
IAC-04Identification & Authentication for Devices
1.00

+10 more (top 10 by confidence shown)

NIST 800-530 mappings

No source states a mapping between these directly.

Also reachable in 2 hops (93) 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-10Concurrent Session Control
1.00
AC-16Security and Privacy Attributes
1.00
AC-17(1)Monitoring and Control
1.00
AC-17(10)Authenticate Remote Commands
1.00
AC-17(2)Protection of Confidentiality and Integrity Using Encryption
1.00
AC-18(1)Authentication and Encryption
1.00
AC-2(1)Automated System Account Management
1.00
AC-2(10)Shared and Group Account Credential Change
1.00
AC-2(11)Usage Conditions
1.00
AC-2(2)Automated Temporary and Emergency Account Management
1.00

+83 more (top 10 by confidence shown)

NIST 800-1710 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (2) 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.

3.1.1
1.00
3.1.2
1.00
CCI1 mapping
CCI-000213
1.00
NIST CSF 2.00 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.

PR.AA-05
1.00
PR.DS-10
1.00
PR.IR-01
1.00

Who does this work

17 NICE work roles and 9 EC-Council certifications.

This is an inference across published mappings, not a single claim by anyone. This check maps to a control, which maps to a Cybersecurity Framework outcome, which NIST assigns to the work roles below. EC-Council separately maps its certifications to those same roles.

A certification prepares someone for a role. It is not evidence that a holder is qualified, and neither NIST nor EC-Council has stated that any certification here addresses this check.

Work-role assignments published by NIST (NICE Framework Components 2.2.0 and the CSF 2.0 OLIR crosswalk). Certification mappings published by EC-Council.

Details

Check Text (C-233314r919219_chk)

If DOD is not at C2C Step 1 or higher, this is not a finding. If traffic is not allowed to bypass the NAC policy, this is not a finding. Use the Forescout Administrator UI to verify a policy exists that uses the exemption group configured so that all client machines are assessed by Forescout with exceptions that are allowed to bypass Forescout based on the account or account type, as approved by the ISSM and documented in the SSP. 1. In the filters pane under Groups, right-click the group editor. Pick the group indicated as compliance by the site representative. 2. Click "Scope" and review the Exemptions Group. If Forescout is not configured to approve all instances where traffic is allowed to bypass the NAC as approved by the ISSM, this is a finding.

Fix Text (F-36474r919218_fix)

Use the Forescout Administrator UI to configure an exception group that is defined in the SSP and ensure policy is applied to the group that allows NAC bypass. Create a group based on the exemptions in the SSP. 1. In the filters pane under Groups, right-click the group editor. Pick or create an exemption group. 2. Add a name and then add the scope based on IP range or Subnet, or based on MAC Address. 3. Click "OK" and then click "OK" again. Click "Yes" for "Are you sure?". Create a policy that uses the exemption group. 1. In the Views pane, click "Authentication & Authorization". 2. Select an existing policy and edit the Scope to add the Exemptions Group. 3. In Exceptions type, select "Group". 4. In the Policy screen, select the exceptions group created in the prior step, click "OK" several times, and then click "Apply".