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Mastering Kali Linux for Advanced Penetration Testing

You're reading from   Mastering Kali Linux for Advanced Penetration Testing Secure your network with Kali Linux 2019.1 – the ultimate white hat hackers' toolkit

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Product type Paperback
Published in Jan 2019
Publisher Packt
ISBN-13 9781789340563
Length 548 pages
Edition 3rd Edition
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Authors (2):
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Robert Beggs Robert Beggs
Author Profile Icon Robert Beggs
Robert Beggs
Vijay Kumar Velu Vijay Kumar Velu
Author Profile Icon Vijay Kumar Velu
Vijay Kumar Velu
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Table of Contents (16) Chapters Close

Preface 1. Goal-Based Penetration Testing FREE CHAPTER 2. Open Source Intelligence and Passive Reconnaissance 3. Active Reconnaissance of External and Internal Networks 4. Vulnerability Assessment 5. Advanced Social Engineering and Physical Security 6. Wireless Attacks 7. Exploiting Web-Based Applications 8. Client-Side Exploitation 9. Bypassing Security Controls 10. Exploitation 11. Action on the Objective and Lateral Movement 12. Privilege Escalation 13. Command and Control 14. Embedded Devices and RFID Hacking 15. Other Books You May Enjoy

Firmware unpacking and updating

In this section, we will explore how to unpack a firmware and update it with our custom firmware. We have noted that the firmware images will not include all the files to construct a complete system. Typically, we find the following:

  • Bootloader (1st/2nd stage)
  • Kernel
  • File-system images
  • User-land binaries
  • Resources and support files
  • Web-server/web-interface

In this section, we will utilize USBJTAG NT, while the USB connected to our Kali Linux and the JTAG is connected on the circuit board of the device. JTAG stands for Joint Test Action Group. It is an industry standard for verifying designs and testing printed circuit boards after manufacture.

JTAG can be used more from a TAP perspective no matter how restricted the device is. The manufacturer will usually leave either a serial port or a few TAPs (Test Access Port). In our experience, if the serial...

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