Extracting Firmware from Linux Router using the U-Boot Bootloader and UART

Digital Signal Analysis for Hardware Hackers training: https://training.brownfinesecurity.co... USE COUPON CODE at checkout to receive 10% OFF: IOTHACKER (Expires March 1st) Want to learn IoT Hacking? Ready to break into IoT security? Our hands-on training courses teach real-world hardware hacking skills: https://training.brownfinesecurity.com/ In this video, we discuss how to extract firmware from a Linux Router using UART access to the device's bootloader. This device used U-Boot as the embedded system's bootloader which provides us with a way to extract flash memory contents using a few handy U-Boot commands. Then we use a small python script to convert the U-Boot hex dump to a binary file which we can analyze with binwalk. video on finding UART:    • Finding UART and Getting a Root Shell on a...   tool to convert u-boot hex dump output to a binary file: https://github.com/nmatt0/firmwaretools U-Boot command documentation: https://u-boot.readthedocs.io/en/late... IoT Hackers Hangout Community Discord Invite:   / discord   🛠️ Stuff I Use 🛠️ 🪛 Tools: XGecu Universal Programmer: https://amzn.to/4dIhNWy Multimeter: https://amzn.to/4b9cUUG Power Supply: https://amzn.to/3QBNSpb Oscilloscope: https://amzn.to/3UzoAZM Logic Analyzer: https://amzn.to/4a9IfFu USB UART Adapter: https://amzn.to/4dSbmjB iFixit Toolkit: https://amzn.to/44tTjMB 🫠 Soldering & Hot Air Rework Tools: Soldering Station: https://amzn.to/4dygJEv Microsoldering Pencil: https://amzn.to/4dxPHwY Microsoldering Tips: https://amzn.to/3QyKhrT Rework Station: https://amzn.to/3JOPV5x Air Extraction: https://amzn.to/3QB28yx 🔬 Microscope Setup: Microscope: https://amzn.to/4abMMao Microscope 0.7X Lens: https://amzn.to/3wrV1S8 Microscope LED Ring Light: https://amzn.to/4btqiTm Microscope Camera: https://amzn.to/3QXSXsb About Me: My name is Matt Brown and I'm an Hardware Security Researcher and Bug Bounty Hunter. This channel is a place where I share my knowledge and experience finding vulnerabilities in IoT systems. Soli Deo Gloria 💻 Social: twitter:   / nmatt0   linkedin:   / mattbrwn   github: https://github.com/nmatt0/ #iot #uboot #linux #uart #iotsecurity