Hacking_and_Penetration_Testing_with_Low_Power_Devices

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Remote control the easy way 167 FIGURE 7.9 Configuring a Series 2 modem as an end device. can be remotely controlled. In order for this to work, the XBee radios must be set to operate in transparent mode. We will first consider the easiest case of a single remote drone. The XBee radio on the command console should have its DL address set to match the MY address of the drone. To set up TTY on your drone on UART2 (the one used by the XBee cape and mini-cape described in the previous chapter), create a file named ttyO2.conf (i.e., an O not a zero!) in /etc/init with the following contents: # ttyO2 - getty # This service maintains a getty on ttyO2 from the point the\ system is # started until it is shut down again. start on stopped rc RUNLEVEL¼[2345] stop on runlevel [!2345] respawn exec /sbin/getty -8 57600 ttyO2 The TTY process will automatically start each time the system is rebooted. To start the TTY services immediately, execute the command sudo start ttyO2. Any terminal program can be used on the command console to log in to the drone. Set the terminal program to connect to the correct serial port on the command console
168 CHAPTER 7 Building an army of devices and you should be rewarded with a log-in prompt on the drone. When using a USB XBee adapter, the port will likely be /dev/ttyUSB0. This same technique can be used to control multiple drones one at a time. In order to switch from one drone to another, the DL address on the command console XBee modem must be set to match the MY address of the target drone. The steps to change drones are as follows: First, type “+++” into the terminal program and do not press enter. The modem will respond with “OK” after about a second. Second, change the DL value to match the drone MY address by typing “ATDLnnnn,” where nnnn is the drone MY address, and press enter. Third, write the results to the modem by typing “ATWR” and pressing enter. Finally, exit command mode by typing “ATCN” and pressing enter. All of these commands must be entered before the time-out value set on the modem is reached and it automatically exits command mode. The TTY method has a couple of advantages over using Python. First of all, no programming is required. Once the XBee modems are configured and TTY services are running on the drones, penetration testing may commence. Secondly, interactive programs can be run using this method. Finally, if the command console is connected to a drone and it goes out of range, it will still be connected when back in range. While this method is simpler than the Python method to be described next, it is not recommended for any penetration tests with more than just a handful of drones. Even then, I would be inclined to use Python. Running interactive programs is nice, but keep in mind that the maximum connection speed is 250 kbps. Noise on the wireless connection can also be an issue. A big limitation is that communication is only possible with one drone at a time. When running in API mode, the command console can talk to multiple drones and noise is less of a problem because data are transmitted in packets with checksums. REMOTE CONTROL via PYTHON Using API mode is the most desirable situation. There are a number of options on how to accomplish this. If you have an excess amount of free time, you can write your own XBee communication program in the language of your choice. There is a Java XBee-API library available from https://code.google.com/p/xbee-api/. A Python XBee and ZigBee module is also available at https://code.google.com/p/ python-xbee/. Given Python’s popularity with penetration testers, it seems like the logical choice for our purposes. The current version of the Python XBee module is 2.1.0 as of this writing. Despite its name, the XBee module works with ZigBee modems as well. The XBee module is very easy to use. The following code snippet demonstrates how to send packets using this module. One thing to keep in mind when operating the XBee modems in API mode is that the maximum packet size is 100 bytes: import serial from xbee import XBee
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Hacking and Penetration Testing wit
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Hacking and Penetration Testing wit
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Dedicated to my favorite wife, my f
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Contents Foreword..................
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Contents ix Network Hubs and Switch
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Foreword So I will start out this f
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Author Biography Dr. Philip Polstra
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Acknowledgments First and foremost,
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CHAPTER Meet the deck 1 INFORMATION
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The deck 3 FIGURE 1.1 Collection of
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The deck 5 FIGURE 1.4 Fern WiFi Cra
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The deck 7 MODES OF OPERATION One o
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The deck 9 stores data only on a lo
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Summary 11 I knew that The Deck, wh
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CHAPTER Meet the beagles 2 INFORMAT
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Texas instruments devices 15 FIGURE
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Texas instruments devices 17 proces
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Texas instruments devices 21 The AD
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Texas instruments devices 23 WHY NO
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CHAPTER Installing a base operating
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Introduction 29 FIGURE 3.2 QNX smar
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Introduction 31 FIGURE 3.4 Android
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Introduction 33 (http://openembedde
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Introduction 35 FIGURE 3.6 Arch Lin
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Introduction 37 Sabayon In the phys
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Introduction 39 Table 3.7 Fedora Pe
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Introduction 41 tar xJf debian*.xz
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Ubuntu options 43 supportive commun
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Creating a microSD Card 45 Device t
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Chapter 3 Appendix: digging deeper
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CHAPTER Filling the toolbox 4 INFOR
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Adding a graphical environment 57 b
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Adding a graphical environment 59 W
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Adding a graphical environment 61 t
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Adding tools the easy way 63 The li
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Adding tools the easy way 65 check_
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Adding tools the easy way 67 echo -
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Adding tools the hard way 69 # chec
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Adding tools the hard way 71 descri
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Adding tools the hard way 73 FIGURE
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Adding tools the hard way 85 dl_src
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Starter set of tools 87 and possibl
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Starter set of tools 89 #get John w
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Starter set of tools 91 The company
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CHAPTER Powering The Deck 5 INFORMA
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Power requirements 95 the city and
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Power sources 97 WALL POWER When it
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Power sources 99 Thanks to commonly
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Power sources 101 Table 5.2 Duracel
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Reducing power consumption 103 REDU
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Penetration testing with a single b
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Page 138 and 139: Summary 121 site. In-depth testing
Page 140 and 141: CHAPTER Input and output devices 6
Page 142 and 143: Display options 125 FIGURE 6.1 LCD7
Page 144 and 145: IEEE 802.11 wireless 127 The Alfa A
Page 146 and 147: BeagleBone capes 129 FIGURE 6.4 UAR
Page 148 and 149: BeagleBone capes 131 pull-up resist
Page 150 and 151: BeagleBone capes 133 FIGURE 6.7 XBe
Page 152 and 153: BeagleBone capes 135 Newly created
Page 154 and 155: BeagleBone capes 137 Table 6.1 Cape
Page 156 and 157: BeagleBone capes 139 If you don’t
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Page 170 and 171: Summary 153 if "done" in status.ite
Page 172 and 173: CHAPTER Building an army of devices
Page 174 and 175: Using IEEE 802.15.4 networking 157
Page 176 and 177: Configuring IEEE 802.15.4 modems 15
Page 186 and 187: Remote control via python 169 seria
Page 188 and 189: Remote control via python 171 impor
Page 190 and 191: Remote control via python 173 elif
Page 192 and 193: Remote control via python 175 dnum
Page 194 and 195: Remote control via python 177 rc_na
Page 196 and 197: Remote control via python 179 The M
Page 198 and 199: Remote control via python 181 } [ "
Page 200 and 201: Remote control via python 183 Merel
Page 202 and 203: Saving power 185 on the modem. The
Page 204 and 205: Adding security 187 a different cha
Page 206 and 207: Expanding Your Reach 189 FIGURE 7.1
Page 208 and 209: Penetration testing with multiple d
Page 220 and 221: Summary 203 # if IP and MAC aren’
Page 222 and 223: CHAPTER Keeping your army secret 8
Page 224 and 225: Hiding devices 207 FIGURE 8.2 At fi
Page 226 and 227: Hiding devices 209 FIGURE 8.4 Car d
Page 228 and 229: Hiding devices 211 FIGURE 8.7 Wirel
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FIGURE 8.17 Inside the Dalek Desk D
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FIGURE 8.21 The haxtar. The haxtar
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Installing devices 221 example, wea
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CHAPTER Adding air support 9 INFORM
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Building the AirDeck 225 Latte is s
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Building the AirDeck 227 what you a
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Using your aerial drone 229 Power i
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Using your aerial drone 231 Install
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Alternative aircraft 233 else { //
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CHAPTER Future directions 10 INFORM
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Closing thoughts 237 For reasons me
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Index Note: Page numbers followed b
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Index 241 configuration, 77-79, 83f
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Index 243 Python scripts, 143-144 w
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