Pwndfu Tool -

At a high level, pwndfu performs the following steps:

This produces a rom.bin file – a complete dump of Apple’s bootrom for analysis. pwndfu tool

The tool’s primary purpose is to place a compatible iOS device into pwned DFU (pwnDFU) mode At a high level, pwndfu performs the following

The checkm8 exploit, and consequently modern pwndfu tools, works on devices powered by the following Apple System-on-Chips (SoCs): Users connect their device in standard DFU mode,

Multiple open-source and community-driven tools exist to achieve this state, depending on the device hardware and the host operating system:

Created by axi0mX, ipwndfu is the open-source open-source python tool that originally demonstrated the checkm8 exploit. It is primarily run via the command line on macOS or Linux. Users connect their device in standard DFU mode, execute the script, and the tool sends a specific sequence of USB packets to exploit the heap memory, leaving the device in a pwndfu state.

: Newer devices (iPhone XS and later) are generally immune to the public bootrom exploits used by these tools.