RIPencapsulation: Defeating IP Encapsulation on TI MSP Devices
summary
RIPencapsulation demonstrates that Texas Instruments IP Encapsulation on MSP430 and MSP432 devices fails because lack of call‑site enforcement and unsanitized register state allow single‑cycle register dumps via timer interrupts. The authors implement an interrupt‑oriented programming gadget finder and an end‑to‑end exploit that reverse‑engineers ~60% of firmware automatically, finds read/write gadgets, and exfiltrates 100% of IP memory (tinyAES key in <120s, Gladman SHA‑256 in ≈45min) using MSP430 GCC and UART on commodity MSP430 FR5994 / MSP432P401R hardware.
AI-written summary · about
chapters (8)
- 0:00RIPencapsulation exploit intro
- 2:35Why IoT trusted execution matters
- 5:49TI MSP IP encapsulation flaws
- 9:43RIPencapsulation exploit steps
- 13:17Reverse engineering IP firmware
- 16:30MSP 432 RIPencapsulation differences
- 18:19Evaluation results and impact
- 20:25Security patches and recommendations
related talks
41mBreaking and Securing Memory Isolation in Texas Instruments Microcontrollers
48mReverse-Engineering the Supra iBox: Exploitation of a Hardened MSP430-Based Device
32mSecSi Product Development
19mBe Write Back: An in-depth Study of Fault Injection Effects on FRAM Technology
33mBreaking Into Chips By Reading The Datasheet
48mFatal Fury on ESP32: Time to Release Hardware Exploits
39mBackdooring Hardware Devices by Injecting Malicious Payloads on Microcontrollers
21mGlitchGlück: Enabling Software Vulnerabilities through Guided Hardware Fault Injection