Home/Talks/F12 as a Weapon: What Your Router Reveals When You Ask It

F12 as a Weapon: What Your Router Reveals When You Ask It

Name: F12 as a Weapon: What Your Router Reveals When You Ask It
Uploaded: 2026-11-07T00:00:00.000Z
Duration: 41 min 50 s
Channel: Vojtěch Hron
Description: How often do you open F12 when logging into your router? I did it twice and found a security bug both times. I’ll show two vulnerabilities in home ISP routers. On one, from O2, the router hands the admin password to anyone. We’ll go from a suspicious request through reverse engineering in Ghidra to a live exploit. You don’t need to know crypto or reversing, just curiosity and F12.

CzechOpenAlt 2026November 7, 202642 min

Download the videoMP4 · 158 MBSlidesPDF · 2 MB

How often do you open F12 when logging into your router? I did it twice and found a security bug both times. I’ll show two vulnerabilities in home ISP routers. On one, from O2, the router hands the admin password to anyone. We’ll go from a suspicious request through reverse engineering in Ghidra to a live exploit. You don’t need to know crypto or reversing, just curiosity and F12.