0xbadcoffee

digital security and other possibly related topics

Link to the CTF itself
Extraterrestrial CTF

Type
OSINT

Challenge
As an Open Source Intelligence analyst, you have been tasked with locating Activia Productions' project manager and recruiter, Khalil Askerman, who disappeared shortly after leaving for a company sponsored trip. According to fa...

As a reason to structure my CTF (capture the flag) notes I have decided to start posting them here, the exact format is still a work in progress and I will likely have to go back and edit things a few times. However it would be nice to have them collected in one place for myself if nothing else, as...

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Getting persistent root in a few simple steps by dumping the filesystem directly from the memory chip of an IP camera.

This is a short write up of a presentation I gave during spring and summer at among others 2600 Malmö that was in turn based on this very draft of working with a particular camera...

So I wanted to move a bunch of esphome devices (a mix of esp8266 and esp32 boards) from one network to another, changing wifi ap/SSID and all network settings. And I wanted to do this over the air!

As there were quite a few nodes and these were used in various IoT settings, not all of them were co...

In other words, howto do mDNS on Edgerouter.

This is a dead horse that should have been beaten enough by now, but these are my notes to how I got it working.

Setup:
VLAN 5 - trusted wifi
VLAN 20 - iot things

Chromecast uses mDNS to announce itself and since VLANS are routed this breaks but i...