The UUIDs of handle 0xb in the above image and below in nrf connect matches. After connecting to the bulb, we can write random value to the different characteristics. In most cases, writing random values will not work as expected. To write the correct values in the handle, we need to decipher the data protocol, which can be found out using sniffing tools like wireshark and ubertooth.
If the char-write-req reports an error we can use char-write-cmd instead. Android starting from version 4. To enable capture of bluetooth traffic follow the steps below. Ensure that the android app is installed. Step 3 : Run the android app magic blue app and send some commands to the bulb to change its color. Repeat this several times. Step 4 : Analyze the capture packets in Wireshark.
Wireshark is a free and open source packet analyzer tool and can be installed by running. It can both sniff as well as write data just like gatttool. Step 6 : Once connected, write the payload value 56bf0aa. Click on send. The bulb color will change to a shade of burgundy.
This is because the color has a RGB value of , 48, 96 or B in hexadecimal. The command we sent to the bulb was 56 b0 30 60 00 f0 aa. Note the second, third and fourth byte correspond to the RGB value in hex. We can figure out the protocol by manually analyzing the traffic and trying to find a pattern in it. Bleah is a BLE scanner. It's based on the bluepy python library.
In this section, we are going to see how we can "hack" BLE devices using Bleah. Go to bluepy directory. Open a terminal and type sudo. Note: For finding the path where Bluepy is installed simply run which bluepy-helper.
A success message indicates Bluepy is functioning correctly. Now, lets see how we can use Bleah for BLE hacking. Step 2: Open another terminal and run sudo bleah -t0 where t0 means to scan continuously. Step 3: We can connect to the specific device and enumerate all the Services and Characterstics using. As we just saw, Bleah is a powerful tool for conducting attacks on BLE devices. It automates many of the steps which otherwise we need to do manually.
With this, we come to an end to this blog post where we learnt various tools and techniques for performing attacks on Bluetooth Low Energy Devices. Hope you find this post useful. For any queries, suggestions, or improvements feel free to leave a comment below.
Your ideas are always welcome. What makes BLE stand out? Enables multi-platformed communication: Can easily communicate via a large number of devices that run on Android, iOS, Linux, Windows Phone, Windows 8, and OS X Better pairing speed Helps maintain a connection for longer periods of time Significantly lower implementation costs Energy efficient BLE does sound good but, is it really all that good? Hackers use specialised software which automatically detects nearby devices equipped with Bluetooth.
They can also see which networks your device has previously connected to; this is important because your phone treats these networks as trusted and will connect to them automatically in future. If the cybercriminals can replicate a trusted network , they can trick your device into connecting to Wi-Fi and Bluetooth devices that they control. The hackers can then bombard your device with malware, spy on you and even steal your data from your text messages and apps.
Once a smartphone has been compromised, the hacker can intercept and redirect phone calls, access bank details, send or receive files or simply watch what you are doing in real time. Bluebugging is often performed in busy public places, often where there are a lot of routine commuters. Choosing a busy place allows them to remain undetected and to monitor the same devices which pass by regularly. Hackers may also choose places where people linger for several hours like cafes, pubs and restaurants.
Dorset Police recently discovered an instance of bluebugging in the busy seaside town of Bournemouth. Local residents began reporting incidents where they were receiving automated messages and files from unknown senders as they walked through the city. Dorset Police issued some guidance to Bournemouth residents — advice that we can all use to avoid becoming victims of bluebugging.
First, disable Bluetooth on your devices whenever it is not in use. Second, disable file-sharing services that rely on Bluetooth like AirDrop or Fast Share unless you are sending or receiving files from a trusted friend. Therefore, concentrating on the reconnaissance discovery phase and internal kali Bluetooth hacking tools would be our goal for this chapter.
This hciconfig is the main Linux command line utility used for interacting with Bluetooth device Bluetooth dongle. If you know Linux, you may already see the reference to other tools like ifconfig or iwconfig. This hcitool is a very powerful CLI tool implemented in kali Linux that allows a user to interface with the Bluetooth stack.
It is also a great tool that you can use in your own scripts. An hcitool scan will allow you to find Bluetooth devices that are sending out their discovery beacons something like As you can see that in the neighborhood, two Bluetooth enabled devices were sending out beacon frames to inform about their readiness to accept Bluetooth connections.
You can try to find more Bluetooth information about those two by using the hcitool inq. It allows you to enumerate all the services running on the Bluetooth device.
0コメント