Ionut Cernica

Application Security Engineer

BIOGRAPHY

Ionut Cernica started his security career with the bug bounty program from Facebook. His passion for security led him to get involved in dozens of such programs and he found problems in very large companies such as Google, Microsoft, Yahoo, AT&T, eBay, VMware. He has also been testing web application security for 9 years and has had many projects on the penetration testing side.

Another stage of his career was to get involved in security contests and participated in more than 100 such contests. He also reached important finals such as Codegate, Trend Micro and Defcon with the PwnThyBytes team. He also won several individual competitions, including the mini CTF from the first edition of Appsec village – Defcon village.

Now he is doing research in the field of web application security, being also a PhD student at University Polytechnic of Bucharest. Through his research he wants to innovate in the field and to bring a new layer of security to web applications.

Deanonymization of TOR HTTP hidden services

Anonymity networks such as Tor are used to protect the identity of people or services. Several deanonymization techniques have been described over time. Some of them attacked the protocol, others exploited various configuration issues. Through this presentation I will focus on deanonymization techniques of the http services of such networks by exploiting configuration issues.

In the first part of the presentation, I will present deanonymization techniques on TOR which are public, and I will also present the techniques developed by me and the interesting story of how I came to develop them.

In the last part of my presentation, I will do a demo with the exploitation of http hidden services in TOR and I will present each technique separately. I will also present how one of the techniques can be used successfully not only in the TOR network, but also on the internet in order to obtain information about the server that will help you discover other services.

Are you the next cyber security superstar?

If you are passionate about an information security topic or you have strong technical skills developing researches on your own, you should definitely Apply at Call for Papers. By submitting you will have the chance to showcase your work to +2000 attendees.

Other speakers joining this year

Gabriel Mihai Tanase

Partner, Technology & Cyber Security KPMG

Cristian Pațachia-Sultănoiu

Development & Innovation Manager Orange Romania

Jayson E. Street

Chief Chaos Officer Truesec

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With the dual expertise as a global operator coupled with the agility of an end-to-end integrator, Orange Business Services is a global network-native, digital services company. From connectivity, smart mobility services and the cloud to artificial intelligence (AI), analytics and cybersecurity, Orange Business Services helps businesses at every stage of their data management. Orange Business Services is represented in Romania by the business division of Orange Romania and helps large companies, SMEs and public authorities to transform their organizations through the use of technology and digital information.

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