Hak5 Bash Bunny

Summary

This documentation is about the Bash Bunny from Hak5. This device is an multi-purpose USB Attack platform.

Gain Access to the Bash Bunny

There are three main ways to gain access to the Bash Bunny:

• from the File System
• with an Serial Console Interface
• with SSH

hostname	root
password	hak5bunny

Serial Console Interface

The Serial Console Interface can be used when the Bash Bunny is in attack mode. It is independent from the operating system but the ways are different.

Windows (Putty)

Putty is the best way t access serial consoles when working on an Windows machine. Just download it on the manufacturer website and install it and follow the steps.

Step 1:

Get the comport by entering

[Windows key] device manager [enter] 

Extend the "Ports (COM & LPT) line and search for the "USB Serial Device(COM..)"

Step 2:

Open Putty and go to the Serial TAB and enter the following parameters:

Serial line to connect to	COM..
Speed (baud)	115200
Data bits	8
Stop bits	1
Parity	No
Flow control	XON/XOFF

Go back to the session tab and check "Serial" and Open the Connection

Linux

1. When using Linux it is preffered to use the package screen install it with

sudo apt-get install screen

2. Search for the device with

dmesg | grep tty
Output:
[195.328289] cdc_acm 1-1.1.2.3:2.0: ttyACM0: USB ACM device

3. Connect with the command

sudo screen /dev/ttyAMC0 115200

SSH

Set the bash bunny in attack mode (Switch at the nearest position to the USB connector) and plug it in. Enter the device and follow the path BashBunny/payloads/switch1 (switch 2 can be used as well)and edit the payload.txt file

• • • Windows ***

Change the third line to

ATTACKMODE STORAGE RNDIS_ETHERNET

• • • MAC and Linux ***

Change the third line to

ATTACKMODE STORAGE ECM_ETHERNET   

The RNDIS_ETHERNET and ECM_ETHERNET are used to display the Bash Bunny as an USB Ethernet adapter. Windows uses for this adapters proprietary drivers so it is not compatible with the Ethernet Control Model (ECM).

Connect whit:

ssh root@172.16.64.1

Used Hardware

Device to be used with this documentation Maybe another device to be used with this documentation

Courses

• A course where this documentation was used (2017, 2018)
• Another one (2018)

References

• https://wikipedia.org
• https://google.com

Category:Pentesting