Cascading Chaos: A GOT-Oriented Exploit Story

Team82 researcher Tomer Goldschmidt documents a novel exploitation technique that leverages a pre-authenticated format-string vulnerability on an end-of-life ARM-based device to obtain write-what-where primitives, perform partial GOT overwrites, and chain GOT modifications ("Cascading GOT Call Chain") to achieve remote code execution. The report includes an ARM32 QEMU emulation setup, compilation flags to mirror the target, step-by-step exploit development (including %n positional specifiers and byte-wise GOT overwrites), debugging artifacts, and a pwnlib-based PoC demonstrating a reverse shell.