Advertisement

Exploiting Vendor-Defined Messages in the USB Power Delivery Protocol

  • Gunnar AlendalEmail author
  • Stefan Axelsson
  • Geir Olav Dyrkolbotn
Conference paper
Part of the IFIP Advances in Information and Communication Technology book series (IFIPAICT, volume 569)

Abstract

The USB Power Delivery protocol enables USB-connected devices to negotiate power delivery and exchange data over a single connection such as a USB Type-C cable. The protocol incorporates standard commands; however, it also enables vendors to add non-standard commands called vendor-defined messages. These messages are similar to the vendor-specific commands in the SCSI protocol, which enable vendors to specify undocumented commands to implement functionality that meets their needs. Such commands can be employed to enable firmware updates, memory dumps and even backdoors.

This chapter analyzes vendor-defined message support in devices that employ the USB Power Delivery protocol, the ultimate goal being to identify messages that could be leveraged in digital forensic investigations to acquire data stored in the devices.

Keywords

USB Power Delivery protocol vendor-specified messages exploitation 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    G. Alendal, G. Dyrkolbotn and S. Axelsson, Forensic acquisition – Analysis and circumvention of Samsung secure boot enforced common criteria mode, Digital Investigation, vol. 24(S), pp. S60–S67, 2018Google Scholar
  2. 2.
    G. Alendal, C. Kison and modg, Got HW Crypto? On the (In)Security of a Self-Encrypting Drive Series, Cryptology ePrint Archive, Report 2015/1002 (eprint.iacr.org/2015/1002), 2015
  3. 3.
    N. Artenstein, Exploiting Android S-Boot: Getting arbitrary code exec in the Samsung bootloader (1/2), Information Security Newspaper, March 3, 2017Google Scholar
  4. 4.
    Chindi.ap (commons.wikimedia.org/wiki/User:Chindi.ap), 2019Google Scholar
  5. 5.
    H. Reydarns, V. Lauwereys, D. Haeseldonckx, P. van Willigenburg, J. Woudstra and S. De Jonge, The development of a proof of concept for a smart DC/DC power plug based on USB Power Delivery, Proceedings of the Twenty-Second Conference on the Domestic Use of Energy, 2014Google Scholar
  6. 6.
    T10 Technical Committee of the International Committee on Information Technology Standards, SCSI Operation Codes (www.t10.org/lists/op-num.htm), 2015
  7. 7.
    USB Implementers Forum, Getting a Vendor ID, Beaverton, Oregon (www.usb.org/getting-vendor-id), 2019
  8. 8.
    USB Implementers Forum, USB Power Delivery, Beaverton, Oregon (www.usb.org/document-library/usb-power-delivery), 2019

Copyright information

© IFIP International Federation for Information Processing 2019

Authors and Affiliations

  • Gunnar Alendal
    • 1
    Email author
  • Stefan Axelsson
    • 1
  • Geir Olav Dyrkolbotn
    • 1
  1. 1.Norwegian University of Science and TechnologyGjovikNorway

Personalised recommendations