Blackbe;rry ENTERPRISE SOLUTION SECURITY - SECURITY FOR DEVICES WITH BLUETOOTH WIRELESS TECHNOLOGY -... Guide d'installation

Security Technical Overview

BlackBerry Devices with Bluetooth Technology

SWDT391201-391201-0613044539-001

Contents

1BlackBerry Enterprise Solution security........................................................................................................................ 3

2Bluetooth technology......................................................................................................................................................... 5

Bluetooth profiles........................................................................................................................................................................ 5

Bluetooth profiles that BlackBerry devices support .............................................................................................................. 5

3Risks of using Bluetooth technology on wireless devices.......................................................................................... 7

Bluejacking................................................................................................................................................................................... 7

Bluesnarfing................................................................................................................................................................................. 7

Bluebugging................................................................................................................................................................................. 8

4Managing Bluetooth enabled BlackBerry devices ...................................................................................................... 9

Bluetooth technology security measures on BlackBerry devices......................................................................................... 9

Using IT policy to manage Bluetooth technology on BlackBerry devices.......................................................................... 11

IT policy rules that control Bluetooth technology on BlackBerry devices...................................................................... 11

Educating users about how to protect their Bluetooth enabled BlackBerry devices........................................................ 20

5 Glossary................................................................................................................................................................................ 21

6 Legal notice ......................................................................................................................................................................... 23

Security Technical Overview BlackBerry Enterprise Solution security

BlackBerry Enterprise Solution security 1

The BlackBerry® Enterprise Solution is designed to encrypt data in transit at all points between the BlackBerry device and

the BlackBerry® Enterprise Server to protect your organization from data loss or alteration. Only the BlackBerry Enterprise

Server and the BlackBerry device can access the data that they send between them. If events that threaten the wireless

security of your organization occur, third parties, including wireless service providers, cannot access your organization's

potentially sensitive information in a decrypted format.

The BlackBerry Enterprise Solution uses symmetric key cryptography to encrypt messages and user data that it sends over

the transport layer to provide the following criteria for the security of wired and wireless solutions.

Criteria Description

confidentiality TheBlackBerryEnterpriseSolutionusesencryptiontomakesurethatonlytheintended

message recipients can view the contents of the message.

integrity The BlackBerry Enterprise Solution protects each message that the BlackBerry device

sends with one or more message keys. To prevent third-party decryption or alteration

of the message data, the message keys are designed to consist of random data.

Only the BlackBerry Enterprise Server and the BlackBerry device know the value of

the master encryption key, recognize the format of the decrypted and decompressed

message, and automatically reject a message that is not encrypted with the correct

master encryption key.

authenticity The BlackBerry device authenticates itself to the BlackBerry Enterprise Server to prove

that it knows the master encryption key before the BlackBerry Enterprise Server can

send data to the BlackBerry device.

Security Technical Overview BlackBerry Enterprise Solution security

Security Technical Overview Bluetooth technology

Bluetooth technology 2

Bluetooth® technology is a standard for short-range wireless technology. It enables two devices to communicate using radio

waves that operate at 2.4 GHz. A BlackBerry® device that uses Bluetooth technology can open a wireless connection with

other Bluetooth enabled devices, such as hands-free car kits or headsets, that are within a 10 m range.

The wireless industry considers Bluetooth technology to be a nonsecure channel. If Bluetooth technology is implemented

incorrectly, using it might introduce security vulnerabilities into your organization's network.

Bluetooth profiles

Bluetooth® profiles specify how applications on BlackBerry® devices and on Bluetooth enabled devices connect and are

interoperable. Bluetooth profiles provide use-case scenarios and information about how to configure applications that are

interoperable. Many Bluetooth profiles are available for implementation.

Bluetooth profiles that BlackBerry devices support

Bluetooth® enabled BlackBerry® devices currently support Bluetooth profiles and provide specific IT policy rules to control

their use.

Profile Description

A2DP This profile defines how a BlackBerry device can send and receive audio in an

audio stream format for two-channel stereo over a Bluetooth connection to

another Bluetooth enabled device.

You can use the Disable Advanced Audio Distribution Profile IT policy rule to

specify whether to prevent the BlackBerry device from using this profile.

AVRCP This profile defines how a Bluetooth enabled device controls audio/video

functionality on a BlackBerry device.

You can use the Disable Audio/Video Remote Control Profile IT policy rule to

specify whether to prevent the BlackBerry device from using this profile.

DUN This profile is based on the SPP and allows a BlackBerry device to access dial-

up services, such as the Internet, using Bluetooth technology.

You can use the Disable Dial-up Networking IT policy rule to specify whether to

prevent the BlackBerry device from using this profile.

Security Technical Overview Bluetooth technology

Profile Description

HFP This profile works with the SPP to enable wireless voice capabilities with most

headsetsand somecar kits.If boththe HSPand HFPare available,consider using

the HFP because it offers more functionality and performance than the HSP. For

example, the HFP can support wireless transfer of contact lists for car kits that

use commands that control modems.

You can use the Disable Handsfree Profile IT policy rule to specify whether to

prevent the BlackBerry device from using this profile.

HSP This profile works with the SPP to enable wireless voice capabilities with most

headsets and some car kits. You use the HSP for wireless voice transmission only

if the target peripheral does not support the HFP.

You can use the Disable Headset Profile IT policy rule to specify whether to

prevent the BlackBerry device from using this profile.

SPP This profile provides procedures that describe how to configure serial

connections between a BlackBerry device and a Bluetooth enabled peripheral

that uses a virtual serial port. The Bluetooth enabled peripheral accesses the

serial port through the BlackBerry Software Development Kit.

You can use the Disable Serial Port Profile IT policy rule to specify whether to

prevent the BlackBerry device from using this profile.

SIM Access Profile This profile allows another Bluetooth enabled device to control the SIM card on

a BlackBerry device. For example, a car kit could use the SIM card to control its

own GSM communication. This might be useful if functioning of the BlackBerry

device degrades significantly inside a high-end car because the car is well

insulated. When the car controls the SIM card, the BlackBerry device prevents

any applications that might use the SIM card from running on the device.

Security Technical Overview Bluetooth technology

Risks of using Bluetooth technology on wireless devices 3

The wireless industry considers that Bluetooth® enabled devices have the following potential areas of vulnerability:

• Users with malicious intent can obtain confidential data from Bluetooth enabled devices without the knowledge or

consent of the authorized users.

•A previously trusted (or paired) source that has been removed from the Trusted list can access the memory contents of

some Bluetooth enabled devices.

• Users with malicious intent can gain access to higher-level commands and to voice, data, and messaging channels.

Security threats to Bluetooth wireless technology can be user based or device based.

Type of threat Description Examples

user based User-based threats occur when users change settings or

perform (or fail to perform) actions that leave their devices

vulnerable or open to attacks.

bluejacking

device based Device-based threats are the result of incorrect implementation

of Bluetooth wireless technology on devices, which leave the

devices vulnerable or open to attacks.

bluesnarfing and

bluebugging

Any Bluetooth enabled device is at risk for attack when all of the following conditions are present:

• The Bluetooth wireless transceiver is turned on.

• The device is set to use discoverable (visible) mode.

• The device is physically located within range of a user with malicious intent.

Bluejacking

Bluejacking is a user-based threat that occurs when users with malicious intent send text messages anonymously to

Bluetooth® enabled devices that are set to use discoverable mode and are physically located within 10 m of the attacking

devices. Users with malicious intent can target individuals or they can broadcast anonymous messages to all discoverable

devices in the area. Bluetooth enabled phones, personal device assistants, and laptops can search for other devices within

a short range, so users with malicious intent who are located in crowded public areas can send anonymous messages easily

and without detection.

Bluesnarfing

Bluesnarfing is a device-based threat that occurs when device manufacturers implement the specification for Bluetooth®

technology incorrectly, allowing users with malicious intent to use Bluetooth technology to connect to devices without

notifying the authorized users, and access device information without the knowledge or consent of the authorized users.

Security Technical Overview Risks of using Bluetooth technology on wireless devices

Typically, users with malicious intent gain access to the device users' contact lists although all OBEX-addressable data that

is stored on the devices is vulnerable. During bluesnarfing attacks, users with malicious intent can obtain sensitive

information, such as the unique network identifier of a device. They might also send text messages, make calls, or create

false address book entries.

By default, on BlackBerry devices, the ability to exchange files with supported OBEX devices is turned off, which helps to

protect the devices against bluesnarfing attacks by preventing users with malicious intent from using the OBEX

implementation to access core BlackBerry device data.

Bluebugging

Bluebugging is a device-based threat that occurs when device manufacturers implement security mechanisms for

Bluetooth® technology improperly. Bluebugging also occurs when users with malicious intent use Bluetooth technology to

access phone commands on devices without notifying or alerting the authorized users. This vulnerability enables the users

with malicious intent to make calls, send and read text messages, access and add contacts to contact lists, eavesdrop on

phone conversations, and connect to the Internet, all without detection or authorization.

Security Technical Overview Risks of using Bluetooth technology on wireless devices

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