Session
Programm CCCamp 2019
Security

Privacy leaks in smart devices: Extracting data from used smart home devices

Meitner
Dennis Giese
Remember the good old fun sport, where people bought random hard drives from ebay and did forensics on them? Did you know you can do the same thing with used IoT devices too? Most end-users have no idea what kind of information their devices are storing and how to securely clean their devices (if that even is possible). Lets explore together what the risks are and how we can extract that data.

Many IoT devices collect a lot of data and log files. Of course, most of this data is sent to the Cloud. However, often this data is also stored locally on the device and never deleted in the lifetime of those devices, not even on a factory reset (in contrast to Smart Phones nowadays). This might surprise many people, and especially end users might not be aware of that. Due to the design of IoT devices, there is usually no real way, like for notebooks or PCs, for end users to clean the devices before they sell them on eBay or discard them. The devices may hold sensitive information like Wi-Fi credentials, nearby access points, cloud communication log files, maps, or audio samples.

In this talk I will show some examples of interesting IoT devices from various vendors and how to extract the corresponding information. We will use software methods (rooting) and hardware methods (flash dumping). Using this information, I will show how I am able to find the original owner of the device. Also I discuss various challenges and tricks of the methods, and how to prevent this kind of data leakage for yourself.

Additional information

Type lecture
Language English

More sessions

8/21/19
Security
Thomas Fricke
Curie
The talks shows the security model of Kubernetes and how to detect and fight security weaknesses with a few lines of scripting.
8/21/19
Security
Carsten Strotmann
Meitner
Seldom have DNS protocol changes sparked such fierce debate as happen in the case of DNS-over-HTTPs (Doh) and it's little cousin, DNS-over-TLS (DoT). While for many people it is a matter of black and white, the reality out there is various shades of grey ;) This talk will discuss the technical and political aspects of these DNS privacy protocols, where they come from, who is implementing DoH/DoT (both in the browser space and otherwise) and why it is a [good|bad] idea to support these protocol ...
8/21/19
Security
Egor
Meitner
Typical home networks use a closed-source Internet Service Provider supplied router/firewall and contain no restrictions on communications between clients within the network. The widespread deployment of network-connected appliances, control systems, lighting, etc, means that this design is insecure. This talk will cover the basics of networking, including why and how segregation of different types of network clients and traffic can be achieved to increase privacy and security.
8/21/19
Security
Meitner
We have learned that Math might be our last defence line against a real existing all-encompassing surveillance. One central challenge in this conflict is to combine authentication and anonymity. Number theory provides us many tools to create really surprising technologies for social communication. A lot of these technologies have not yet been brought to the world of concrete implementations. This has the implication that some ideas which have been presented years ago are not covered by patents ...
8/22/19
Security
Eileen Wagner
Curie
This case study of NoScript’s UX redesign showcases tried and true design principles that make security tools usable to a wider range of audiences.
8/22/19
Security
cy
Curie
i'll show how the average developer (like me) can secure their software and systems by automatically checking for known vulnerabilities and security issues as part of their CI-Toolchain. The Talk will introduce basic security knowhow, then show how you can use Open Source Frameworks to check for vulnerable dependencies, containers and (web-)APIs in a live demo
8/22/19
Security
phils
Meitner
In the last year, a group of researchers and some industry people at the IETF decided to join forces and design a replacement of the BSD Socket API. This talk gives an overview about why the BSD Socket API is considered harmful for the Internet's future and how TAPS tries to solve this problem. Besides the facts, also gives some hints about how standardisation at the IETF works and why all this takes so long…