How to Hack Hardware using UART
ID: 33e5d6d5-bc27-53e4-bbf2-19ff6b1aa185
STIX ID: report--33e5d6d5-bc27-53e4-bbf2-19ff6b1aa185
Feed Name: Black Hills Infosec Blog
A researcher documents reverse-engineering a Linksys E2500 v3 router by identifying two UART TAPs (DJ6 for the BCM43236 radio and DJ2 for the Broadcom CPU), using a JTAGulator to find TX/RX at 115200 baud and later an Attify Badge to gain BusyBox root access; while Telnet/SSH were disabled, UART provided a root shell, and attempts to bulk memory-dump via the radio interface were limited by reboots—highlighting practical methods, tooling, and constraints for firmware extraction via JTAG/UART.
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