Ti Kallisti


Tales from the Noosphere

A collection of (mostly) InfoSec-related stories that I encountered either privately or professionally.

These stories might not always contain cutting-edge knowledge. They might not always be super long. But all of them I deemed worth telling.

(1) When Network Access Control does not control who has access to your network

During a recent engagement, I found myself in quite a difficult situation. I was in the client's offices and got my hands on one of their Windows laptops including a set of valid domain credentials. So, using an Ethernet cable, I was able to get the laptop into the client's network. But, thanks to a great Endpoint Detection and Response (EDR) solution, solid privilege management and 802.1X-2010 NAC, that was about as far as I could get. Or was it...?
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