User training must deny the use of personally provided Unified Capability (UC) soft client accessories.

From Voice Video Services Policy STIG

Part of UC soft client accessory training

Associated with IA controls: ECSC-1, DCBP-1, PRTN-1

SV-17074r2_rule User training must deny the use of personally provided Unified Capability (UC) soft client accessories.

Vulnerability discussion

While a headset, microphone, webcam, combination headset/microphone, or a combination webcam/microphone can be considered to be UC soft client accessories; these are also accessories for other collaboration and communications applications. These have been discussed previously and are not included in the topic of this section. A USB phone is a physical USB connected telephone instrument that associates itself with the UC soft client application running on the PC. It minimally provides a handset which includes both the mouthpiece and receiver and may provide a dial pad, a speakerphone function, or other functions. A USB ATA is a USB connected device that associates itself with the UC soft client application and provides the ability to utilize a standard analog telephone or speakerphone. Some USB ATAs also provide a port to which an analog phone line can be connected. This allows a single analog phone to be used with the UC soft client while also answering and placing calls via the analog phone line. This line could be connected to a local PBX or to the PSTN. Some USB phones contain a port to which an analog phone line can be connected so the USB phone can be used with it to place and receive calls. There is little risk in the operation of this kind of USB ATA or USB phone providing it operates only as described and there is no direct bridging of networks as described next. A PPG (USB connected or internal card) is a type of ATA that is a gateway intended to bridge the UC soft client application and supporting VVoIP network to an analog phone line from a local PBX or the PSTN. PPGs pose legal and fraud threats to a DoD network due to this bridging of networks. They can be used for toll fraud, toll avoidance, or placing or receiving unauthorized calls. Some USB Phones can contain a PPG. While these devices might be used to meet a specific mission requirement, their use may be illegal in certain countries and instances when connected between a DoD IP voice and data network and a public dial-up voice network. The use of any UC soft client accessory that provides a network bridging function poses both a legal and an IA threat to the DoD voice communications network. PPGs must not be used except to fulfill a validated and approved mission requirement.

Check content

Interview the ISSO to validate compliance with the following requirement: Ensure personnel are trained not to employ personally provided UC soft client accessories, including PPGs, ATAs, USB phones, or wireless headsets. This policy is to be acknowledged in user agreements and included in user training and user guides. Determine if training is provided to users about not employing personally provided UC soft client accessories. Inspect user agreements for acknowledgement of this training. Interview a random sampling of users regarding their awareness of this subject. This is a finding if the training, training materials, or user awareness of the policy are deficient or if the policy is not addressed and acknowledged in signed user agreements.

Fix text

Ensure personnel are trained not to employ personally provided UC soft client accessories, including PPGs, ATAs, USB phones, or wireless headsets. This policy is to be acknowledged in user agreements and included in user training and user guides. Provide the appropriate user training such that they do not employ personally provided UC soft client accessories and require they sign user agreements that acknowledge the training and policy.

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