Ben Gardiner - Trailer Shouting: Talking PLC4TRUCKS Remotely with an SDR Presentation Title: Trailer Shouting: Talking PLC4TRUCKS Remotely with an SDR Ben Gardiner, Senior Cybersecurity Research Engineer, National Motor Freight Traffic Association Inc., He/Him Chris Poore, Senior Reverse Engineer, Assured Information Security, He/Him Length of presentation: 45 Minutes Demo, Tool, Exploit Ben Gardiner, Chris Poore and other security researchers have been analyzing signals and performing research against trailers and Power Line Communication for multiple years. This year the team was able to disclose two vulnerabilities focused on the ability to remotely inject RF messages onto the powerline and in turn send un-authenticated messages to the brake controller over the link. The team will discuss the details of PLC4TRUCKS, identify what led to this research and the discovery of the vulnerabilities, and then highlight the details of the SDR and software used to perform the attack. The talk will conclude with the demonstration of a remotely induced brake controller solenoid test using an FL2K and the release of the GNU radio block used to perform the test to the community to promote further research in the area. ## SPEAKER BIO(S) Ben Gardiner is a Senior Cybersecurity Research Engineer contractor at the National Motor Freight Traffic Association, Inc. (NMFTA) specializing in hardware and low-level software security. Prior to joining the NMFTA team in 2019, Gardiner held security assurance and reversing roles at a global corporation, as well as worked in embedded software and systems engineering roles at several organizations. He is a DEF CON Hardware Hacking Village and Car Hacking Village volunteer. He also participates in and contributes to working groups in SAE and ATA TMC. Chris Poore is a Senior Reverse Engineer at Assured Information Security in Rome, NY. He has expertise discovering vulnerabilities in wireless systems, gaining access to systems via RF, reverse engineering RF protocols, forensically testing cybersecurity systems, and administering RF collection events. He has experience writing code for software-defined radios and GNU Radio to reverse-engineer RF communication protocols and perform sophisticated attacks. Chris is excitable when working with the community to draw out ideas and takes advantage of networking opportunities with both humans and computers. ## REFERENCES: Haystack & Sixvolts, Cheap Tools For Hacking Heavy Trucks, DEF CON 24 CHV https://media.defcon.org/DEF%20CON%2...avy-Trucks.pdf Haystack & Sixvolts, TruckDuck (tool), https://truckhacking.github.io/ Haystack, Python Heavy Vehicle Interface https://truckhacking.github.io/ SAE J2497 https://www.sae.org/standards/content/j2497_201207/ SAE J1708 https://www.sae.org/standards/content/j1708_200408/ SAE J1587 https://www.sae.org/standards/content/j1587_201301/ ATA TMC (S.1) Next Generation Tractor/Trailer Electrical Interface -- https://tmcconnect.trucking.org/comm...Url=%2fcommuni ties%2fcommunity-home%2fdigestviewer%3ftab%3ddigestviewer%26Communi tyKey%3d782c741b-674d-4af4-b962-9019b3e7d056%26ssopc%3d1&ssopc=1 ATA TMC (S.1) Next Generation Tractor/Trailer Electrical Interface New TMC Webinar Series Alert: Next Generation Trailer Electrical/Electronic Architecture -- https://tmcconnect.trucking.org/comm...Url=%2fcommuni ties%2fcommunity-home%2fdigestviewer%3fcommunitykey%3d782c741b-674d-4af4-b962-9019b3e7d056%26tab%3ddigestviewer ICS Advisory (ICSA-20-219-01) Trailer Power Line Communications https://www.cisa.gov/uscert/ics/advi...icsa-20-219-01 https://nvd.nist.gov/vuln/detail/CVE-2020-14514 ICS Advisory (ICSA-22-063-01) Trailer Power Line Communications (PLC) J2497 https://www.cisa.gov/uscert/ics/advi...icsa-22-063-01 https://nvd.nist.gov/vuln/detail/CVE-2022-25922 https://nvd.nist.gov/vuln/detail/CVE-2022-26131 49 CFR § 571.121 - Standard No. 121; Air brake systems. 49 CFR § 393.55 - Antilock brake systems. 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