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Chaos Computer Club - archive feed

21,498 episodes — Page 159 of 430

⚠️ May Contain Hackers 2022 Closing (MCH2022)

Jul 26, 202217 min

⚠️ May Contain Hackers 2022 Closing (MCH2022)

It's over before you know it... this talk looks back at the event, explains how the tear-down works, highlights next years camps and gives a tanks to all the organizers on stage. What more can i say? Except that i need to enter at least 250 characters. I'll just blabber on and fill up th 🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈🌈 about this event: https://program.mch2022.org/mch2022/talk/DZAUQA/

Jul 26, 202217 min

Infrastructure review (MCH2022)

Jul 26, 202258 min

Infrastructure review (MCH2022)

The traditional talk by most or all operational teams about the infrastructure built for MCH2022. While the site has some infrastructure in place, a lot of it has to be built for this event. On the other hand there's also teams that just make things go away. MCH2022 can not be organised without a lot of temporary infrastructure. Join the operational teams and discover the new, the unexpected or the surprising technologies that were necessary to make MCH2022 a success. Expect graphs, pictures of bodges, perhaps a few hacks but definitely a lot of hard work behind the scenes. Think fiber, LEDs, DatenKlos, trusses, waste bags, Terabytes, angels, vouchers, simultaneous viewers, amps, volts, golf carts etc. Please smile (or laugh) at our bad jokes, we're all running on fumes and in desperate need of a proper sleep. about this event: https://program.mch2022.org/mch2022/talk/ZLALJT/

Jul 26, 202258 min

The MCH2022 Design (MCH2022)

The MCH2022 design speaks for itself, but we would still nerd about it for a while. It is beautiful, colorful, generative, and has some physics ideas behind it. Some of it is obvious, but if you want to know all the hidden depths, this is the talk to visit. The triangulair MCH2022 design is a colourfull generative kaleidoscope with some hidden depths. In that way it reflects the hacker community. It is in some ways a spiritual successor to the SHA2017 design, but it has its own look and feel. You can find it all around the field, on prints and stickers, on the website and on the event shirts. Do you want to know the nitty gritty details of the optical physics, the generative basis and symmetric math ideas behind it? Some of it is obvious, but we would like to talk about it, and go deeper in on the concepts. about this event: https://program.mch2022.org/mch2022/talk/KBP937/

Jul 26, 202218 min

The MCH2022 Design (MCH2022)

Jul 26, 202218 min

Cryptography is easy, but no magic. Use it. Wisely. (MCH2022)

Jul 26, 202228 min

No Permissions Needed! (MCH2022)

Data keeps flowing! In Android, we have the concept of permissions, users feel confident that only if they turn on the permission, their data is shared. But what about an app silently sitting on your device with no permission whatsoever! What can that app know about you? In this talk, I'll talk about the Privacy Posture of Android! What kind of data is being collected, and how is it channelled and used? How does advertising work on mobile? Can your device be fingerprinted? What kind of privacy threats exists on Android? We will learn about the permission model of Android and how permissions operate at the kernel level! This shall be followed by a demo of an Android app, which needs no permission from the user. We will see what all information can be retrieved from your device, without any permission! about this event: https://program.mch2022.org/mch2022/talk/DWWQAN/

Jul 26, 202230 min

No Permissions Needed! (MCH2022)

Jul 26, 202230 min

Cryptography is easy, but no magic. Use it. Wisely. (MCH2022)

Using cryptography can give you easy assurances, keep data confidential and keep prying eyes from stuff where they should not be. However it's not magic. This talk is intended for programmers, users and software designers. This talk is about hardcore mathematics while you should not have to understand what the mathematics are but what they do. What does cryptography do: encrypt, decrypt, sign and verify. How are certificates used in cryptogaphy and why are they totally not a magical thing. It covers what cool hardware is available, open design and open source, hardware tokens and how to use TPM for cool features. And last but not least: it contains best practices and warnings. After this talk you might be able to see what's snakeoil and what is real. == NFT's are a scam. If you are into crypto-bullshit please stay away. == Cryptography seems like magic anytime you at first look at it. In the past years I have been helping a lot of projects and customers with my more-than-basic knowledge about applied cryptography. I'll talk about: * What is cryptography (basic math) - encryption - decryption - digital signatures - digital signature verification * What can it do for you? - Deliver security - Deliver privacy - Deliver dataloss * When to use encryption - what cryptography do you want to build (hint: none) - what cryptography do you want to use (a- or symetrical encryption). - how do you do key management - where to find the best practices * About hardware - Provide security - Provide speed - HSM, TPM, processor and other acceleration * Standards - The good, the bad, the ugly - Old ones - New ones - Very special ones * Limitations and workarounds * Software - How to avoid OpenSSL * This all in random() order. Random = 4 about this event: https://program.mch2022.org/mch2022/talk/S7GEZF/

Jul 26, 202228 min

How do GPS/Galileo really work & how the galmon.eu monitors all navigation satellites (MCH2022)

Jul 26, 202249 min

How do GPS/Galileo really work & how the galmon.eu monitors all navigation satellites (MCH2022)

The whole world depends on Global Navigation Satellite Systems like GPS, Galileo, BeiDou and GLONASS. The technology behind these systems is fascinating and far more interested than generally presented. Although GNSS is super important, up to recently no good monitoring was publicly available. The "galmon.eu" project changed this. In this talk I cover: * How your phone really figures out where it is (so it can sell more expensive ads) * How the "satellite ephemeris" is broadcast, what it means * What is really in this 'assisted GPS'? * The extensive ground infrastructure that is active 24/7 to determine the satellite orbits so GNSS is precise enough to tell which store you are in, or which side of the road you are driving on * How GNSS are monitored in public by 100 Galmon.eu volunteers, running open source receivers all over the world * And the research we enable * Discussion of suitable hardware and GNSS-SDR that allows hackers to see each and every bit coming from the satellites * A brief part on how GNSS can be spoofed and jammed, and the odd cryptography used to help detect or prevent this The goal of this presentation is to expose the fascinating reality behind that little circle on your maps app, but also to explain how vulnerable this system is, which is why we need to monitor it closely. The whole world depends on Global Navigation Satellite Systems like GPS, Galileo, BeiDou and GLONASS. The technology behind these systems is fascinating and far more interested than generally presented. Although GNSS is super important, up to recently no good monitoring was publicly available. The "galmon.eu" project changed this. In this talk I cover: * How your phone really figures out where it is (so it can sell more expensive ads) * How the "satellite ephemeris" is broadcast, what it means * What is really in this 'assisted GPS'? * The extensive ground infrastructure that is active 24/7 to determine the satellite orbits so GNSS is precise enough to tell which store you are in, or which side of the road you are driving on * How GNSS are monitored in public by 100 Galmon.eu volunteers, running open source receivers all over the world * And the research we enable * Discussion of suitable hardware and GNSS-SDR that allows hackers to see each and every bit coming from the satellites * A brief part on how GNSS can be spoofed and jammed, and the odd cryptography used to help detect or prevent this The goal of this presentation is to expose the fascinating reality behind that little circle on your maps app, but also to explain how vulnerable this system is, which is why we need to monitor it closely. about this event: https://program.mch2022.org/mch2022/talk/QTUAXG/

Jul 26, 202249 min

Badge talk (MCH2022)

A high bar set by earlier creations, a pandemic, a postponed event and chip shortages made for a great challenge and a wild adventure creating the MCH2022 badge. This talk explains how we pulled off our most advanced creation yet. We will tell you about the process of converting a vague idea into a piece of electronics, including the prototyping process and the difficulties we encountered. Bodging badges in a time where the pandemic and the chip shortage makes creating a cool gadget near impossible. This talk explains how we pulled off our most advanced creation yet (or not, depending on how things go...). We will tell you about the process of converting a vague idea into a piece of electronics, including the prototyping process and the difficulties we encountered. about this event: https://program.mch2022.org/mch2022/talk/HVGFKB/

Jul 26, 202244 min

Lightning Talks Tuesday (MCH2022)

Lightning talks are a 5 to 10 minute quick talk on an interesting subject. They can be with or without slides, and with or without proper preparation. if you weren't accepted in the main CfP, this is also a great opportunity to give an abridged version of your talk. These sessions will be available to sign up to later on, with details on the wiki: https://wiki.mch2022.org/Static:Lightning_Talks Lightning talks are a 5 to 10 minute quick talk on an interesting subject. They can be with or without slides, and with or without proper preparation. if you weren't accepted in the main CfP, this is also a great opportunity to give an abridged version of your talk. These sessions will be available to sign up to later on, with details on the wiki.Lightning talks are a 5 to 10 minute quick talk on an interesting subject. They can be with or without slides, and with or without proper preparation. if you weren't accepted in the main CfP, this is also a great opportunity to give an abridged version of your talk. These sessions will be available to sign up to later on, with details on the wiki: https://wiki.mch2022.org/Static:Lightning_Talks about this event: https://program.mch2022.org/mch2022/talk/78PVXQ/

Jul 26, 202253 min

Lightning Talks Tuesday (MCH2022)

Jul 26, 202253 min

Badge talk (MCH2022)

Jul 26, 202244 min

Guardians of the Dutch healthcare (MCH2022)

Jul 26, 202226 min

Guardians of the Dutch healthcare (MCH2022)

In 2017 (just before SHA2017) the Dutch healthcare sector came together to create Stichting Z-CERT, the Zorg Computer Emergency Response Team. A nonprofit to protect and advise the Dutch Healthcare sector. What started as a small startup has now grown into a scaleup with the ambitions to match. The COVID-19 pandemic restarted the discussion about whether or not healthcare is vital infrastructure. With NIS2 the role and importance of Z-CERT will only grow from here on. This talk is not to intended to be a corporate “Look how great we are and what kind of sexy products we have. BUY OUR STUFF.” No, we want to simply show what we do and what we learned in 5 years of being a CERT. This might help our (future) fellow CERT’s and the community. This talk is not to intended to be a corporate “Look how great we are and what kind of sexy products we have. BUY OUR STUFF.” No, we want to simply show what we do and what we learned in 5 years of being a CERT. These lessons include: - how to startup a sectoral CERT - How to build a community of members of your constituency - Connecting with fellow CERT organizations - Tools of the trade This might help our (future) fellow CERT’s and the community. about this event: https://program.mch2022.org/mch2022/talk/RHXDFR/

Jul 26, 202226 min

SSH Configuration, Intermediate Level (MCH2022)

So, you know how to "use" the ssh command line? You enter connection parameters like username, hostname or private key every time you need to connect? You manually log into the jump/bastion host when connecting to your target host? Then come to this session and learn how you can make your life easier and your work more efficient by using custom config files and a tiny little bit of preparation. So, you know how to "use" the ssh command line? You enter connection parameters like username, hostname or private key every time you need to connect? You manually log into the jump/bastion host when connecting to your target host? Then come to this session and learn how you can make your life easier and your work more efficient by using custom config files and a tiny little bit of preparation. In addition, we will also cover common best practices and improvements to your current SSH setup. You will benefit the most from this talk, if you have used SSH before. SSH novices are welcome as well, SSH experts may drop by for the bad jokes. The target audience for this talk is people with a beginner/intermediate understanding of SSH. about this event: https://program.mch2022.org/mch2022/talk/KHWLR9/

Jul 26, 202248 min

SSH Configuration, Intermediate Level (MCH2022)

Jul 26, 202248 min

What to do when someone close to you takes their life and you are not Tech-Savvy (MCH2022)

My son Jurre and I got involved in helping less Tech-Savvy people find answers and recover precious data after someone close to them took their own life. This lecture describes our challenging and emotional journey as we hope to inspire others to follow our path. <a href="https://www.flickr.com/photos/dvanzuijlekom/24004514008/in/album-72157687649725580/">Picture of Jurre and Jilles</a> by <a href="https://www.flickr.com/photos/dvanzuijlekom/">Dennis van Zuijlekom</a> is licensed under <a href="https://creativecommons.org/licenses/by-sa/2.0/">CC BY SA 2.0</a> After several talks about Hardware Hacking this talk will be one on a more serious matter. After someone takes their life and the police closes their case, the next of kin may still have questions that are left unanswered. This talk is about our journey from being nerds helping out with computer problems to specialists trying to help the next of kin find answers to questions they might still have. And as this talk will be hosted for computer specialist who spend quite some effort making sure they are protected from external threat ask yourself this question; Will your loved ones be able to control the infrastructure or even have access to the family photo's when you pass away? about this event: https://program.mch2022.org/mch2022/talk/7PZANM/

Jul 26, 202233 min

Computing within Limits (MCH2022)

Jul 26, 202243 min

Computing within Limits (MCH2022)

The LIMITS workshop concerns the role of computing in human societies affected by real-world limits*. As an interdisciplinary group of researchers, practitioners, and scholars, we seek to reshape the computing research agenda, grounded by an awareness that contemporary computing research is intertwined with ecological limits in general and climate- and climate justice-related limits in particular. LIMITS 2022 solicits submissions that move us closer towards computing systems that support diverse human and non-human lifeforms within thriving biospheres. For example, limits of extractive logics, limits to a biosphere's ability to recover, limits to our knowledge, or limits to technological "solutions". The LIMITS workshop concerns the role of computing in human societies affected by real-world limits*. As an interdisciplinary group of researchers, practitioners, and scholars, we seek to reshape the computing research agenda, grounded by an awareness that contemporary computing research is intertwined with ecological limits in general and climate- and climate justice-related limits in particular. LIMITS 2022 solicits submissions that move us closer towards computing systems that support diverse human and non-human lifeforms within thriving biospheres. For example, limits of extractive logics, limits to a biosphere's ability to recover, limits to our knowledge, or limits to technological "solutions". The LIMITS workshop concerns the role of computing in human societies affected by real-world limits*. As an interdisciplinary group of researchers, practitioners, and scholars, we seek to reshape the computing research agenda, grounded by an awareness that contemporary computing research is intertwined with ecological limits in general and climate- and climate justice-related limits in particular. LIMITS 2022 solicits submissions that move us closer towards computing systems that support diverse human and non-human lifeforms within thriving biospheres. * For example, limits of extractive logics, limits to a biosphere's ability to recover, limits to our knowledge, or limits to technological "solutions". https://computingwithinlimits.org/2022/ about this event: https://program.mch2022.org/mch2022/talk/FSYNES/

Jul 26, 202243 min

What to do when someone close to you takes their life and you are not Tech-Savvy (MCH2022)

Jul 26, 202233 min

What can AI learn from your face? (MCH2022)

HowNormalAmI.eu is an interactive documentary that showcases how algorithms judge your beauty, age, gender, weight, life expectancy and emotions by simply looking at your face. The project not only shows how face recognition technology is entering our everyday lives, but it lets you experience these judgements yourself in a safe and privacy friendly way. This talk will zoom in on one algorithm that tries to deduce your Body Mass Index (BMI). The 'making of' will discuss the ethical questions it raised, the dubious science behind it, the dodgy data sources, and the surprising companies that are playing around with this technology. HowNormalAmI.eu is an interactive documentary that showcases how algorithms judge your beauty, age, gender, weight, life expectancy and emotions by simply looking at your face. The project not only shows how face recognition technology is entering our everyday lives, but it lets you experience these judgements yourself in a safe and privacy friendly way. Dutch artist Tijmen Schep has created this interactive experience to reveal how we are increasingly being judged on our face. For example, dating websites like Tinder uses beauty scoring algorithms to match people who are about equally attractive. Services like HireVue claims to find the optimal job applicants based on their 'micro expressions'. This talk will zoom in on one algorithm that tries to deduce your Body Mass Index (BMI) from your face. The 'making of' will discuss the ethical questions it raised, the dubious science behind it, the dodgy data sources, and the surprising companies that are playing around with this technology. Since its launch in september of 2020 the project has been viewed over 185.000 times. If you want to find out if you're more attractive than the Spice girls, make sure you visit www.hownormalami.eu about this event: https://program.mch2022.org/mch2022/talk/TKPHQJ/

Jul 26, 202230 min

What can AI learn from your face? (MCH2022)

Jul 26, 202230 min

Introduction to MQTT, Node-RED & Tasmota (MCH2022)

A demonstration of the power of MQTT in combination with Node-RED. We'll also take a look at the "universal" Tasmota firmware for ESP8266 and ESP32-based devices. This all to hopefully make you enthusiastic to start building your own projects with these building blocks. A demonstration of the power of MQTT in combination with Node-RED. We'll also take a look at the "universal" Tasmota firmware for ESP8266 and ESP32-based devices. This all to hopefully make you enthusiastic to start building your own projects with these building blocks. MQTT is a very light message transport mechanism that uses a standard network connection and a subscribe-publish protocol to get messages from one device to one or more others in the network in a structured manner. Node-RED is a programming tool for wiring together hardware devices, APIs and online services very suited for working with MQTT messages. Tasmota started as a universal firmware for ESP8266/8285 IoT-devices, now with added support for the ESP32 and it comes with MQTT-support out of the box. With these tools, a raspberry pi and a few lines of script, we can start building home automation or whatever you want. about this event: https://program.mch2022.org/mch2022/talk/B3REPR/

Jul 26, 202233 min

Where did all the parts go - the 202x component availability trashfire (MCH2022)

Since early 2021, it has been impossible to buy most integrated circuits and various other components. I'll explain how and why this happened, why it's going to keep happening, and where the fragility of the electronics manufacturing ecosystem comes from. A terrible miscalculation by one unrelated industry (car manufacturing) caused the entire electronics market to fall apart in a spectacular way, meaning that for over a year now it's been impossible to buy many important electronic components, including most ICs. I'll talk about how the electronics component ecosystem is structured, why it's inherently fragile, and how everyone acting in their own best interest has made the problem worse. I'll also share some stories about working around supply issues at various companies and projects I've been involved with during this period. Come hear a fireside chat about how car companies are trash, how you can build a world economy on shortsightedness, and how two conference calls can bring down the entire world's supply of essential parts. about this event: https://program.mch2022.org/mch2022/talk/QKKTTH/

Jul 26, 202230 min

Sensor.Community - Global Open Environmental Data Platform (MCH2022)

Jul 26, 202248 min

Sensor.Community - Global Open Environmental Data Platform (MCH2022)

Sensor.Community - Global platform for Open Environmental Data We invite you to become part of Sensor.Community. The worldwide largest Air Quality sensor network run by contributors generating Open Data. Build a sensor, collect Open Data, share it in a continuous stream with the global network and join forces in local Sensor.Community groups. Sensor.Community is the global platform for environmental open data. We provide the software and assembly guide for the DIY sensor kits for citizen empowerment. Mission Statement: Sensor.Community is a contributors driven global sensor network that creates Open Environmental Data. Our mission is to inspire and enrich people’s lives by offering a platform for the collective curiosity in nature that is genuine, joyful and positive. Sensor.Community started 2015 in Stuttgart / South Germany as a local project. The goal then was the deployment of 300 low cost Air-Quality sensors in Stuttgart. These devices should be easy to build for everyone. Until now the platform has grown to more than 14.000 sensors in over 70 countries (January 2022). These sensors are measuring environmental data as Air-Quality, temperature, pressure and relative humidity. You can see the live values on the live map at Maps.Sensor.Community. Everything ever measured is available as Open Environmental Data. You can download all historical Open Data. To participate you can join a local group which you can discover on the community layer of the map where live values are displayed. -> https://maps.sensor.community/#2/0.0/0.0 We invite you to become part of the community. Build a sensor, generate Open Data, share it in a continuous stream with the network and join forces in local Sensor.Community groups to analyse it. Find like-minded people which care about the environment and the implications on our health. Stay informed and exchange with your neighbours. Once the sensor tube is connected to the network its measured values are available live on the map at Sensor.Community. These values are refreshed every 2 ½ minutes and enable all citizens to see how the situation is around them. The available historical Open Data of all ever measured values enable other projects to serve citizens with other specific services and functionality. Sensor.Community is here to serve citizens on a global layer with environmental Open Data. Our focus is to add further sensor methods, collaborate with institutions as RIVM.nl on data standards and better integrations in their daily work. One great example here is the integration of the Open Data from Sensor.Community into the Data-portal of the National Institute for Public Health and the Environment in the Netherlands at RIVM.nl about this event: https://program.mch2022.org/mch2022/talk/GNVPXC/

Jul 26, 202248 min

Where did all the parts go - the 202x component availability trashfire (MCH2022)

Jul 26, 202230 min

Introduction to MQTT, Node-RED & Tasmota (MCH2022)

Jul 26, 202233 min

A Smart Light Hacking Journey (MCH2022)

Jul 26, 202248 min

A Smart Light Hacking Journey (MCH2022)

Smart lights have become pervasive in many homes, but they are often designed in such a way that makes them completely reliant on the manufacturer's servers and connectivity to the Internet. However, we would much rather be fully in control of our own devices. As a target, we took on the cheap and popular Tuya white-label smart lights, which can be commonly found under many different brand names. In this talk, we'll take you on a trip through our 1-year journey of hacking these devices, including the details of finding and remotely exploiting a vulnerability in the firmware for devices based on the custom BK7231 SoC. Smart lights have become pervasive in many homes, but they are often designed in such a way that makes them completely reliant on the manufacturer's servers and connectivity to the Internet. However, for people who want full control of their own devices, there weren't many affordable and easily usable options. One such option became available near the end of 2018 when a vulnerability was discovered in the firmware of smart devices manufactured by Tuya Smart. Shortly after the discovery of said vulnerability, a project by the name of tuya-convert popped up. It allowed its users to remotely flash Tuya devices with custom firmware by exploiting the - at the time - new vulnerability. By 2020, however, tuya-convert stopped working for an increasing number of new devices. The manufacturer had patched the vulnerability, and unexploitable devices have begun showing up on the market. That's when we decided to look for the next vulnerability for Tuya's smart devices in order to allow remote custom firmware flashing once more. We spent some time hacking on early devices which were based on the ESP8266 platform, and a while later switched to the newer devices based on the custom BK7231 SoC. During the course of our research, we found issues in firmware on both platforms and rediscovered some helpful reversing techniques. In this talk, we'll cover our research journey with its ups and downs on both platforms, as well as the details of a memory corruption vulnerability which we exploited on the BK7231-based devices. about this event: https://program.mch2022.org/mch2022/talk/WKJKEY/

Jul 26, 202248 min

How to Secure the Software Supply Chain (MCH2022)

Jul 26, 202247 min

hack your brain (MCH2022)

Jul 26, 202243 min

How to Secure the Software Supply Chain (MCH2022)

Open source code makes up 90% of most codebases. How do you know if you can trust your open source dependencies? Do you know what’s really going on in your node_modules folder? It is critical to manage your dependencies effectively to reduce risk but most teams have an ad-hoc process where any developer can introduce dependencies. Software supply chain attacks have exploded over the past 12 months and they’re only accelerating in 2022. We’ll dive into examples of recent supply chain attacks targeting the JavaScript, Node.js, and npm ecosystems, as well as concrete steps you can take to protect your apps, projects, and teams from this emerging threat. Open source code makes up 90% of most codebases. How do you know if you can trust your open source dependencies? Do you know what’s really going on in your node_modules folder? It is critical to manage your dependencies effectively to reduce risk but most teams have an ad-hoc process where any developer can introduce dependencies. Software supply chain attacks have exploded over the past 12 months and they’re only accelerating in 2022. We’ll dive into examples of recent supply chain attacks targeting the Node.js, JavaScript, and npm ecosystems, as well as concrete steps you can take to protect your apps, projects, and teams from this emerging threat. Takeaways for this talk: 1. Understand the scope of the supply chain threats against the open source ecosystem, specifically with a focus on JavaScript, Node.js, and npm. 2. Review of our work to audit every open source package on npm to detect the following types of attacks: malware, typo-squats, hidden code, misleading packages, permission creep 3. Specific examples and code walk-throughs of actual malware that was found on npm 4. Discussion of existing methods and tools for detecting supply chain attacks against open source, including limitations 5. Introduction of new open source tool which helps detect supply chain attacks in real-time about this event: https://program.mch2022.org/mch2022/talk/VWGMEH/

Jul 26, 202247 min

hack your brain (MCH2022)

Food affects your body, food affects your mind. This talk describes how the performance of my brain has decreased over time and has returned by changing my diet. Basic food is not enough for your brain to deliver exceptional performance. Come with us and open your mind. Let your remedies be your food and your food be your remedies. Just think about it, I'm eating all day and losing weight. To be wide awake and in your right mind without "Club Mate" or coffee. Great recipes with three ingredients in a blender in seconds. Step by step with food to healing. Can you imagine a tasty gourmet cleansing cure? Results are better appearance, feel reborn, more powerful, mentally more stable, stress-resistant. Hack your food. A report of personal experience and feelings. about this event: https://program.mch2022.org/mch2022/talk/ZZVHAL/

Jul 26, 202243 min

Reproducible Builds for Trustworthy Binaries (MCH2022)

Jul 25, 202231 min

Reproducible Builds for Trustworthy Binaries (MCH2022)

Reproducible Builds is a technique that can be used to secure the software delivery pipeline. For open source software, they even allow independently auditing published binaries, removing a single point of trust from the distribution process. This can be used by individual projects or even complete Linux distributions. The software delivery pipeline is an increasingly popular attack vector: even when your project source code is known-good (audited), an attacker can inject malware by gaining access to the machine used to build (and sign) the binaries. Reproducible Builds provides a mechanism to counter such attacks: by building the same source code on independently-administered machines and comparing their outcome. Several Linux distributions (Debian, Arch, openSUSE, NixOS, OpenWrt, ...) are working towards using Reproducible Builds to make their binary packages independently verifiable, but also individual projects use it to verify their deliverables. This talk will give an overview of progress, results and next steps. about this event: https://program.mch2022.org/mch2022/talk/E33B8K/

Jul 25, 202231 min

illumos SmartOS, specialized Type 1 Hypervisor (MCH2022)

Overview of **SmartOS** - an illumos based distribution with **focus of virtualization**. Must be named technologies used by SmartOS: ZFS, Crossbow, Zones, DTrace, Bhyve. The talk will show you the benefits of SmartOS; Configuration and management of SmartOS virtualization technologies; Tooling on top of SmartOS. SmartOS is a specialized Type 1 Hypervisor platform based on illumos. It supports two types of virtualization: - OS Virtual Machines (Zones): A light-weight virtualization solution offering a complete and secure userland environment on a single global kernel, offering true bare metal performance and all the features illumos has, namely dynamic introspection via DTrace - Hardware Virtual Machines (KVM, Bhyve): A full virtualization solution for running a variety of guest OS's including Linux, Windows, *BSD, Plan9 and more Virtualization in SmartOS builds on top of the foundational illumos technologies inherited from OpenSolaris, namely: - ZFS for storage virtualization - Crossbow (dladm) for network virtualization - Zones for virtualization and containment - DTrace for introspection - SMF for service management - RBAC/BSM for auditing and role based security - And more about this event: https://program.mch2022.org/mch2022/talk/SNNLNX/

Jul 25, 202227 min

Payment terminals as general purpose (game-)computers (MCH2022)

What is inside a Verifone VX820 payment terminal and how can we run our own code (i.e. Doom) on it? This is a story of a software guy messing around with an interesting embedded device. It includes some reverse engineering, *interesting* security practices, proprietary executable formats, and a game of bootloader hopscotch. Starting with an overview of the Verifone VX820 payment terminal's hardware and software, we will follow my curious exploration with the final goal of arbitrary code execution. We will see how such seemingly single-purpose devices actually allow for general purpose computing under the hood, and even contain all the peripherals needed for a fun (retro-)gaming experience. I will show the struggles and practicalities of turning a (previously found and published) bootloader vulnerability into a practical exploit. This includes some reverse-engineering of bootloaders, kernel code, communication protocols and file headers. Following this I will cover the "engineering" part: how to construct a minimum viable "toolchain" to be able to port a codebase like Doom. There will be demos of the exploit and some programs that have been ported :) about this event: https://program.mch2022.org/mch2022/talk/PBTBJG/

Jul 25, 202242 min

illumos SmartOS, specialized Type 1 Hypervisor (MCH2022)

Jul 25, 202227 min

Payment terminals as general purpose (game-)computers (MCH2022)

Jul 25, 202242 min

Introducing CSIRT.global: if you love the internet, we need your help (MCH2022)

Jul 25, 202224 min

Introducing CSIRT.global: if you love the internet, we need your help (MCH2022)

The Dutch Institute for Vulnerability disclosure goes international. We’re building a community of enthusiasts to help stop the downward spiral of the internet, we’re calling it CSIRT.global. It’s aimed at international collaboration. Trust and communication, balanced with a sense of reality about the sensitive information we deal with, are key. Here’s how you can help, one vulnerability at a time. The internet is wonderful. It is also broken and spiralling downward. Governments and big tech often don’t serve the interests of internet enthusiasts. Some people decided to “be the change”. In 2019, The Dutch Institute for Vulnerability was founded, and now it has over 70 volunteers. You have likely heard of our work, like Citrix and Kaseya. Communication is key in disclosing and informing organizations. Internationally, this can pose a real challenge. Therefore, we are building an international community, and we’re calling it CSIRT.global. Trust and communication are key. In this talk, you will learn why we’re expanding, what our challenges are, how we deal with sensitive information, and why it’s logical a volunteer organisation takes the lead. Finally, you’ll learn how you can help. about this event: https://program.mch2022.org/mch2022/talk/ZY39UT/

Jul 25, 202224 min

Knock knock, who’s there? (MCH2022)

One of the most used video entry systems is analysed for this talk. Severe security implications that range from passive, information gathering, attacks to active attacks where unauthorised access to buildings can be gained. During the talk the technical details of the bus system will be discussed and multiple attackvectors will be demonstrated. At the end of the talk the disclosure procedure to high value targets and the manufacturer are also discussed. Feeling safe at home and at work is one of the most basic requirements for living. Part of being, and feeling, safe is the physical access system of the building. For this talk the video intercom system designed and manufactured by one of the most used brands in building access control and video entry technology is… evaluated. In order to paint a picture of the magnitude of the security implications it is good to mention that this system is not just used in apartment buildings but also in government offices such as the probation office in The Netherlands. The talk will discuss the technical aspects of the bus system and how and why this has major security implications. Not only passive attacks will be shown but also more active attacks that can compromise physical security in the buildings where the system is used. The talk will also include how disclosure to some potential targets was done. The reaction from the manufacturer will also be discussed in the talk. about this event: https://program.mch2022.org/mch2022/talk/NV9RBY/

Jul 25, 202222 min

Successfully building and programming sound field control systems (MCH2022)

We will walk through the basics of sound field control systems and what you would need to build your own Wave Field Synthesis and Beamforming enabled system. We will unveil some of the challenges we faced at HOLOPLOT and what solutions power our tech stack. Most of us are very familiar with multiple ways of manipulating or creating audio content; filters, effects, synthesizers, etc., and most certainly don’t think about where the audio content is going to be reproduced. What if I told you your creativity could go further, and you can also control how sound is being reproduced? In this talk, we will learn about sound field generation and control systems, their benefits, and everything you need to build your own Wave Field Synthesis and Beamforming system. Additionally, we will unveil some of the implementation and infrastructure challenges we faced and solved at HOLOPLOT and then let you hear what a HOLOPLOT Matrix Array can actually do. about this event: https://program.mch2022.org/mch2022/talk/JN39DH/

Jul 25, 202249 min

Successfully building and programming sound field control systems (MCH2022)

Jul 25, 202249 min

Censoring the internet & how to bypass it (MCH2022)

Jul 25, 202249 min