STIGQter: STIG Summary: Forescout Network Access Control Security Technical Implementation Guide Version: 2 Release: 5 Benchmark Date: 01 Jul 2026:

When connecting with endpoints, Forescout must be configured to use FIPS 140-2/3 validated algorithms for encryption processes and communications. This is required for compliance with C2C Step 1.

DISA Rule

SV-233340r1018668_rule

Vulnerability Number

V-233340

Group Title

SRG-NET-000580-NAC-002530

Rule Version

FORE-NC-000470

Severity

CAT I

CCI(s)

• CCI-000185 - For public key-based authentication, validate certificates by constructing and verifying a certification path to an accepted trust anchor including checking certificate status information.
• CCI-000068 - Implement cryptographic mechanisms to protect the confidentiality of remote access sessions.

Weight

10

Fix Recommendation

To enable FIPS mode log into the CLI account a use the "fstool fips" command. Use the Forescout Administrator UI to set SecureConnector to use TLS version 1.2 or higher for Client-Server Connections.

To configure FIPS Mode:
1. Log on using the CLIAdmin credentials established upon initial configuration.
2. To enable FIPS mode, type "fstool fips". A prompt will be generated alerting the user FIPS 140-2 will be enabled. Type "Yes" for FIPS to accept this prompt.

To configure TLS:
1. Log on to the Forescout management tool.
2. Select Tools >> Option >> HPS Inspection Engine >> SecureConnector.
3. In the Client-Server Connection, set the Minimum Supported TLS Version to TLS version 1.3.

Check Contents

If DoD is not at C2C Step 1 or higher, this is not a finding.

Use the Forescout CLI credentials to verify FIPS mode is set by running the "fstool version" command and look for the "FIPS enabled" setting. Use the Forescout Administrator UI to verify SecureConnector is set to use TLS version 1.2 or higher for Client-Server Connections.

1. Log on using the CLIAdmin credentials established upon initial configuration.
2. Verify FIPS mode by typing the command "fstool version".

To configure TLS:
1. Log on to the Forescout UI.
2. Select Tools >> Option >> HPS Inspection Engine >> SecureConnector.
3. In the Client-Server Connection, check the Minimum Supported TLS Version is set to TLS version 1.2.

If the NAC is not configured to use FIPS 140-2/3 validated algorithms when connecting with endpoints, this is a finding.

Vulnerability Number

V-233340

Documentable

False

Rule Version

FORE-NC-000470

Severity Override Guidance

If DoD is not at C2C Step 1 or higher, this is not a finding.

Use the Forescout CLI credentials to verify FIPS mode is set by running the "fstool version" command and look for the "FIPS enabled" setting. Use the Forescout Administrator UI to verify SecureConnector is set to use TLS version 1.2 or higher for Client-Server Connections.

1. Log on using the CLIAdmin credentials established upon initial configuration.
2. Verify FIPS mode by typing the command "fstool version".

To configure TLS:
1. Log on to the Forescout UI.
2. Select Tools >> Option >> HPS Inspection Engine >> SecureConnector.
3. In the Client-Server Connection, check the Minimum Supported TLS Version is set to TLS version 1.2.

If the NAC is not configured to use FIPS 140-2/3 validated algorithms when connecting with endpoints, this is a finding.

Check Content Reference

M

Target Key

5250