Dr Nestori Syynimaa

Senior Principal Security Researcher Secureworks

BIOGRAPHY

Dr Nestori Syynimaa is one of the leading Azure AD / M365 experts in the world and the developer of the AADInternals toolkit. He has worked with Microsoft cloud services for over a decade and has been MCT since 2013, MVP since 2020, and awarded Microsoft Most Valuable Security Researcher since 2021. Currently, Dr Syynimaa works as a Senior Principal Security Researcher for Secureworks Counter Threat Unit. Before moving to his current position, Dr Syynimaa worked as a CIO, consultant, trainer, researcher, and university lecturer for almost 20 years. 

Dr Syynimaa has spoken in many international scientific and professional conferences, including IEEE TrustCom, Black Hat Arsenal USA & Europe, RSA Conference, DefCon Cloud Village and DefCon Demo Labs.

Abusing Azure AD pass-through authentication vulnerabilities

In May 2022, Secureworks Counter Threat Unit (CTU) researcher found multiple vulnerabilities in one of the Microsoft Azure Active Directory (Azure AD) authentication methods, Pass-through Authentication (PTA). These flaws allow threat actors to gain persistent and undetected access to the target organisation, impersonate users, gather credentials, and perform Denial of Service (DoS) attacks remotely. Microsoft has categorised these vulnerabilities as by-design.

In this talk, we will cover the details of the flaws and show how they can be exploited in action. We will also show how to harden your environment to protect against PTA attacks and detect whether your environment has been compromised.

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

Ioan Iacob

Senior Security Researcher CrowdStrike

Ioan Constantin

Cyber Security Expert Orange

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Orange Romania is the leader of the local telecom market and part of the Orange Group, one of the largest global telecommunications operators, connecting hundreds of millions of customers worldwide. With over 11 million customers and an annual turnover exceeding 1.5 billion euros, Orange Romania connects 1 in 2 Romanians and offers an extensive range of communication solutions to its customers, both individual users and companies, from basic services up to complete voice services, fixed and mobile data, TV services or smart home services, but also mobile financial services. Orange is also a leader in innovation investing yearly over 200 million euros in network infrastructure and R&D initiatives in Romania. In the past 3 years Orange has launched two 5G Labs in Bucharest and Iasi, that aim to support researchers, startups and companies to test their 5G solutions in advance. In addition, Orange is a long-term supporter of the startup ecosystem through the Orange Fab accelerator program designed to support entrepreneurs in the development of innovative products and their distribution locally and internationally. 

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