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CTF
Binary exploitation: hijacking the control flow
Trigger a stack overflow with pwntools, measure the offset to the return address with a cyclic pattern, and understand the stack frame that explains where the bytes you send end up.
Beeper 1: Reverse Engineering a Hidden Command
Reverse engineering a Zephyr firmware to find a hidden XOR-obfuscated command in a Ph0wn CTF challenge
Beeper 2: Crafting an OOK Radio Signal to Trigger a Hidden Command
Crafting and transmitting a 433 MHz OOK signal with a BladeRF to trigger a hidden command on a real device