The IP-based VTC system must use H.235-based signaling encryption.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-43035	RTS-VTC 1240	SV-55764r1_rule	ECCT-1 ECNK-1 ECSC-1	Medium

Description
An IP/H.323-based VTC system as a whole (including CODECs, MCUs, Gatekeepers, Gateways, firewall traversal border elements, etc.) must implement H.235-based signaling encryption. H.235 has been developed to help secure the signaling protocols used in the H.323 suite of protocols. H.235 uses the Advanced Encryption Standard (AES) for encryption and the Diffie-Hellman key exchange protocol for key exchange. AES is supported under H.235 version 3. Technical details of H.235 are set forth in the ITU-T Recommendation H.235.6 (2005), H.323 security: Voice encryption profile with native H.235/H.245 key management.

Description

An IP/H.323-based VTC system as a whole (including CODECs, MCUs, Gatekeepers, Gateways, firewall traversal border elements, etc.) must implement H.235-based signaling encryption. H.235 has been developed to help secure the signaling protocols used in the H.323 suite of protocols. H.235 uses the Advanced Encryption Standard (AES) for encryption and the Diffie-Hellman key exchange protocol for key exchange. AES is supported under H.235 version 3. Technical details of H.235 are set forth in the ITU-T Recommendation H.235.6 (2005), H.323 security: Voice encryption profile with native H.235/H.245 key management.

STIG	Date
Video Services Policy STIG	2020-02-25

Details

Check Text ( C-49187r3_chk )
Review the documentation to determine that the VTC equipment supports H.235-based signaling encryption and review configuration of the equipment to verify that it is being implemented. If the equipment does not support H.235-based signaling encryption or it has not been implemented, this is a finding.

Fix Text (F-48617r2_fix)
Obtain equipment that supports H.235-based signaling encryption and configure the equipment to implement encryption.