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