Security

ARMore: Pushing Love Back Into Binaries

Aarch64 binary rewriting adventures but mostly pains
Saal Granville
@cyanpencil (Luca Di Bartolomeo)
A talk on the first heuristic-free static binary rewriter for aarch64. Why is it the first? Because everyone else already knew how much of a bad idea this would have been.
There's a bunch of closed-source arm64 binaries out there that we can't really fuzz efficiently due to slow dynamic instrumentation. Static binary rewriting has been around since decades, but was mostly focused on x86. Porting it to arm64 should be a straightforward task, right? This is the story of how a simple "4-week port of an existing x86 rewriter" took 2+ years instead. Maybe the real treasure is the CVEs we made along the way? Warning: the talk might contain sensitive imagery of ARM Assembly. Viewers have been warned.

Additional information

Live Stream https://streaming.media.ccc.de/37c3/granville
Type lecture
Language English

More sessions

12/27/23
Security
stacksmashing
Saal 1
Hardware hacking tooling for the new iPhone generation If you've followed the iPhone hacking scene you probably heard about cables such as the Kanzi Cable, Kong Cable, Bonobo Cable, and so on: Special cables that allow access to hardware debugging features on Lightning-based iPhones such as UART and JTAG. However with the iPhone 15, all of those tools became basically useless: USB-C is here, and with that we need new hardware and software tooling. This talk gives you a brief history of iPhone ...
12/27/23
Security
Kevin Gomez
Saal Granville
The importance and relevance of vehicles in investigations are increasing. Their digital capabilities are rapidly growing due to the introduction of additional services and features in vehicles and their ecosystem. In this talk on automotive digital forensics, you will embark on a journey through the cutting-edge world of automotive technology and the critical role digital forensics plays in this domain. We will explore the state-of-the-art methods and tools to investigate modern vehicles, ...
12/27/23
Security
Saal Granville
Tesla's driving assistant has been subject to public scrutiny for good and bad: As accidents with its "full self-driving" (FSD) technology keep making headlines, the code and data behind the onboard Autopilot system are well-protected by the car manufacturer. In this talk, we demonstrate our voltage-glitching attack on Tesla Autopilot, enabling us root privileges on the system.
12/27/23
Security
Saal 1
Imagine discovering a zero-click attack targeting Apple mobile devices of your colleagues and managing to capture all the stages of the attack. That’s exactly what happened to us! This led to the fixing of four zero-day vulnerabilities and discovering of a previously unknown and highly sophisticated spyware that had been around for years without anyone noticing. We call it Operation Triangulation. We've been teasing this story for almost six months, while thoroughly analyzing every stage of ...
12/27/23
Security
Saal Zuse
Elektronische Arbeitsunfähigkeitsbescheinigungen (eAU), Arztbriefe, medizinische Diagnosen, all diese sensiblen Daten werden heute mittels KIM – Kommunikation im Gesundheitswesen – über die Telematikinfrastruktur (TI) verschickt. Aber ist der Dienst wirklich sicher? Wer kann die Nachrichten lesen, wo werden die E-Mails entschlüsselt und wie sicher ist die KIM-Software? Im Live-Setup einer Zahnarztpraxis haben wir Antworten auf diese Fragen gesucht.
12/27/23
Security
Saal 1
This talk will present details of the TETRA:BURST vulnerablities - the result of the first public in-depth security analysis of TETRA (Terrestrial Trunked Radio): a European standard for trunked radio globally used by government agencies, police, military, and critical infrastructure relying on secret cryptographic algorithms which we reverse-engineered and published in August 2023. Adding to our initial disclosure, this talk will present new details on our deanonymization attack and provide ...
12/27/23
Security
muelli
Saal Granville
We present an analysis and recovery method for files encrypted by Black Basta, the "second most used ransomware in Germany". We analysed the behaviour of a ransomware encryptor and found that the malware uses their keystream wrongly, rendering the encryption vulnerable to a known-plaintext attack which allows for recovering affected files. We confirmed the finding by implementing tools for recovering encrypted files. We have made our tools for decrypting files without access to the actual key ...