Gabor Österreicher
Gabor is a senior lecturer and researcher at University of Applied Sciences St. Pölten (Austria), specializing in network technologies and cybersecurity. He has more than 25 years of experience with all types of wired and wireless network technologies and manufacturers such as Cisco and HP/Aruba. Wireshark is therefore his preferred tool for analysis, troubleshooting, and teaching in the field of computer networks.
In his free time, Gabor can be found on the streets and in the parks of Vienna, swimming in the Danube, playing basketball, traveling, or hiking and snowboarding in the mountains.
Session
Modern operating systems ship with native IPv6 support and dual stack configurations enabled by default. While this is essential for comprehensive connectivity, it introduces subtle yet critical security risks - especially in environments still predominantly focusing on IPv4 and IPv4 security.
This talk provides an overview of dynamic IPv6 configuration options and explores how attackers can exploit IPv6 capabilities to compromise IPv4 networks. We will demonstrate how IPv6 features - such as SLAAC, Router Advertisements, and DHCPv6 - can be weaponized in dual stack setups. For this, we will use Wireshark to analyze different types of attacks and the corresponding behaviors of the targeted operating systems at the packet level. Finally, we will conclude our talk with recommended mitigation strategies for the identified issues.