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Showing posts from April, 2019

Besder - An Investigative Journey Part 1

Hello everyone, and welcome to my investigative journey into the Besder IP20H1 network camera! Last time, (Part 1, Part 2), I covered the VStarCam C7824WIP, a fully featured network camera with some BIG custom protocol flaws. Using knowledge gained from investigation, I was able to write an "anti-client" which could pilfer the password to the camera from a client, reflect the credentials at the camera, then install our own firmware which unfortunately bricked the device. I bought a brand new device and I'm ready to try again.

After my first article, Brian Cardiff from Manas, the creators of the Crystal language, reached out to me to say that they enjoyed the article and they wanted to give me a gift card to Amazon to pick out a new camera! And that's exactly what I did. Big thank you to the Crystal team for doing this, they are some wonderful people, and I'm really glad to be a part of their community!

If you would like to participate, you can buy the camera from…