crypto re

Nordic /dev/null

Punkty: 347

Rozwiązań: 9

Our Q/A engineer decided to discard the flag through a BLE-connected /dev/null device. The firmware vendor says they changed exactly one thing in Zephyr's Bluetooth security stack, but the auditor complained about it for some reason.

The firmware was built from Zephyr commit 0f07a53476dd5edc8c7e20a657ef7828df9d6b89 for the xiao_nrf54l15/nrf54l15/cpuapp board using the arm-none-eabi-gcc (Arch Repository) 16.1.0 compiler.

firmware.hex 463 KB

session.pcapng 676 KB

Format flagi: ecsc26{litery_cyfry_i_znaki_specjalne}.
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