DEF CON 25 Conference — Denton Gentry — I Know What You Are by the Smell of Your Wifi

Дата: 20.01.2018. Автор: CISO CLUB. Категории: Подкасты и видео по информационной безопасности

Existing fingerprinting mechanisms to identify client devices on a network tend to be coarse in their identification. For example they can tell it is an iPhone of some kind, or that it is a Samsung Android device of some model. They might look at DHCP information to know its OS, see if the client responds to SSDP, or check DNS-SD TXT responses.

By examining Wi-Fi Management frames we can identify the device much more specifically. We can tell a iPhone 5S from an iPhone 5, a Samsung Galaxy S8 from an S7, an LG G5 from a G4. This talk describes how the signature mechanism works.

Specifically identifying the client is the first step toward further scanning or analysis of that client’s behavior on the network.


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