JTAG Debugging Exploits

Attacks leveraging JTAG debugging interfaces to gain low-level system access.

Understanding:

JTAG (Joint Test Action Group) is a hardware debugging interface often used in embedded systems. Attackers exploit JTAG access to bypass security protections, extract firmware, or inject malicious code.

Common Applications and Use Cases:

Reverse Engineering Hardware Devices – Extracts firmware for analysis.
Bypassing Secure Boot & Encryption – Gains unauthorized access to embedded systems.
Firmware Manipulation & Debugging – Injects malicious code into devices.

Best Practices and Security Considerations:

Disable JTAG in Production Systems – Prevents unauthorized debugging.
Use JTAG Authentication & Access Controls – Limits access to trusted users.
Employ Tamper Detection Mechanisms – Alerts on unauthorized access.