Part 5/7:
I have to give props to Netgear, though. The blog post shows that the WAX 206 router has full RELRO (Relocation Read-Only), ASLR (Address Space Layout Randomization), NX (Non-Executable), and stack canaries enabled. These are impressive security mitigations that are often lacking in the embedded world. Even with these protections in place, the researchers were still able to achieve arbitrary code execution through the buffer overflow vulnerability.