2019 年 9 月 27 日，安全研究人员 axi0mX 在 Twitter 上发布了 Checkm8 漏洞利用工具，标志着 iOS 安全史上的又一次转折。Checkm8 利用的是 BootROM 代码中的内存损坏问题，影响范围极其广泛，涵盖了搭载 A5 到 A11 芯片的数百款设备，从 iPhone 4S 一直覆盖到 iPhone X。由于硬件漏洞无法通过 OTA 软件更新修复，理论上这些设备将面临“永久”的可破解风险，这直接催生了 ipwndfu 等后续一系列强大的开源工具。
技术的本质是中性的，它既可用于探索知识的边界，也可能被滥用于非法牟利。对于对技术充满好奇心的你而言，不妨在自己手头的旧款设备上，按照本文的指南进行一次底层调试的尝试。这不仅是对那段“盗火者”般的越狱岁月的致敬，更是理解现代计算设备安全架构与博弈的绝佳切入点。
Re-enter DFU mode manually, clear the driver cache using Zadig, and re-run the pwndfu trigger.
For : Use the "Generate Activation Data" feature. ipro+pwndfu
: This is almost always caused by Windows overwriting the custom driver with the default Apple driver. Re-run Zadig, filter for all devices, and replace the driver on the Apple Recovery (iBoot) entry.
Because these tools update frequently to keep up with Apple's security patches, staying connected with the community is vital:
This is where you exploit the BootROM to put the device in "Pwned DFU" mode. 2019 年 9 月 27 日，安全研究人员 axi0mX 在
Ensure you have the official iPro iPwnder For Windows executable unpacked on your system. Step 2: Boot the Device into Standard DFU
The following pipeline describes how the iPro tool leverages the pwndfu state to boot a device into an isolated diagnostic environment.
iPro sends a custom device tree, ramdisk, and kernel patch over USB. The device boots this temporary operating system. Re-run Zadig, filter for all devices, and replace
use the Volume Down button instead of Home.
It embeds checkm8 scripts to put devices into pwndfu mode with a single click.