Class 14a1 - Bypassing Secure Boot - Intro 1
Class 14a1 - Bypassing Secure Boot - Intro 1
Hardware Hacking Expert - Level 2 - Module 1: UART Hacking
About Module 01 – UART Hacking
About Module 01 – UART Hacking
Class 01 - Why Hack UART?
Class 01 - Why Hack UART?
Class 02 - Identify UART pins
Class 02 - Identify UART pins
Class 03 - Sniffing Log
Class 03 - Sniffing Log
Class 05 - UART and the OT World
Class 05 - UART and the OT World
Class 06 - Connecting to OT Comm Line
Class 06 - Connecting to OT Comm Line
Class 07 - Identifying the right wires
Class 07 - Identifying the right wires
Class 09 - Sniffing OT Network
Class 09 - Sniffing OT Network
Class 11 - true MITM on OT
Class 11 - true MITM on OT
Class 12 - Fault Injection in UART Attacks
Class 12 - Fault Injection in UART Attacks
Class 13 - Bypassing Kill Switch Protection
Class 13 - Bypassing Kill Switch Protection
Class 14 - Bypassing Secure Boot
Class 14 - Bypassing Secure Boot
In this advanced class, students examine secure boot as both a defensive measure and an exploitable weakness. The instructor first explains the purpose and flow of secure boot, showing how cryptographic checks are meant to prevent unauthorized code execution. From there, the weaknesses of real implementations are exposed. Students learn three practical bypass strategies: inducing faults to disrupt validation, forcing single-user mode to escalate privileges, and manipulating firmware images directly to subvert checks. This class makes clear that secure boot, while marketed as bulletproof, is often vulnerable to precise hardware-level intervention.
Learning Objective
Understand secure boot’s protections and apply multiple bypass techniques.
Training Outcomes
Describe the secure boot process and its intended protections
Identify weaknesses in implementation that open attack surfaces
Execute bypass techniques including fault injection, single-user login forcing, and firmware manipulation
Hands-On Experience
Trigger secure boot faults and observe validation failures
Alter boot parameters to drop into single-user mode
Manipulate firmware components to disable or weaken secure boot enforcement