Forescout that stores device keys must have a key management process that is FIPS-approved and protected by Advanced Encryption Standard (AES) block cipher algorithms. This is required for compliance with C2C Step 1.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-233333	FORE-NC-000280	SV-233333r811416_rule		High

Description
The NAC that stores secret or private keys must use FIPS-approved key management technology and processes in the production and control of private/secret cryptographic keys. Private key data is used to prove that the entity presenting a public key certificate is the certificate's rightful owner. Compromise of private key data allows an adversary to impersonate the authorized device and gain access to the network. Private key data associated with software certificates, including those issued to a NAC, are required to be generated and protected in at least a FIPS 140-2 Level 1-validated cryptographic module.

Description

The NAC that stores secret or private keys must use FIPS-approved key management technology and processes in the production and control of private/secret cryptographic keys. Private key data is used to prove that the entity presenting a public key certificate is the certificate's rightful owner. Compromise of private key data allows an adversary to impersonate the authorized device and gain access to the network. Private key data associated with software certificates, including those issued to a NAC, are required to be generated and protected in at least a FIPS 140-2 Level 1-validated cryptographic module.

STIG	Date
Forescout Network Access Control Security Technical Implementation Guide	2021-12-17

Details

Check Text ( C-36528r811415_chk )
If DoD is not at C2C Step 1 or higher, this is not a finding. If the NAC does not store device keys, this is not applicable. Verify the NAC is configured to use FIPS-mode or a key management process that is protected by Advanced Encryption Standard (AES) block cipher algorithms. If the NAC does not use FIPS-mode or key management process that is FIPS-approved and protected by Advanced Encryption Standard (AES) block cipher algorithms, this is a finding.

Check Text ( C-36528r811415_chk )

If DoD is not at C2C Step 1 or higher, this is not a finding.
If the NAC does not store device keys, this is not applicable.

Verify the NAC is configured to use FIPS-mode or a key management process that is protected by Advanced Encryption Standard (AES) block cipher algorithms.

If the NAC does not use FIPS-mode or key management process that is FIPS-approved and protected by Advanced Encryption Standard (AES) block cipher algorithms, this is a finding.

Fix Text (F-36493r803483_fix)
If the Forescout Appliance is using FIPS mode, then TLS 1.2 is set as part of that configuration and does not need to be configured manually. If FIPS is not enabled, use the Forescout Administrator UI to set SecureConnector to use TLS version 1.2 or higher for Client-Server Connections. 1. Select Tools >> Option >> HPS Inspection Engine >> SecureConnector. 2. In the Client-Server Connection, set the Minimum Supported TLS Version to TLS version 1.2.

Fix Text (F-36493r803483_fix)

If the Forescout Appliance is using FIPS mode, then TLS 1.2 is set as part of that configuration and does not need to be configured manually.

If FIPS is not enabled, use the Forescout Administrator UI to set SecureConnector to use TLS version 1.2 or higher for Client-Server Connections.
1. Select Tools >> Option >> HPS Inspection Engine >> SecureConnector.
2. In the Client-Server Connection, set the Minimum Supported TLS Version to TLS version 1.2.