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@emanuelduss.ch

IT security. Linux & network protocols. Pentesting web applications, networks & AD infrastructures. Mostly technical stuff here. https://emanuelduss.ch

Collision! Although successful on stage, Emanuele Barbeno, Cyrill Bannwart, Yves Bieri, Lukasz D., Urs Mueller (@compasssecurity) of Compass Security targeted Anthropic Claude Code, hitting a one-vulnerability collision with a previous attempt and earning $20,000 & 2 Master of Pwn points. #Pwn2Own

BildBild

This was a really cool and awesome course ❤️! I learned so much in these two days and did a lot of stuff I never did and never heard about before. It was cool when (after some nasty debugging 🫠) the encryption key could finally be sniffed 🤘. Thanks a lot for your training, you guys rock!

Open notebook from the backside where the mainboard can be seen, tiny wires are soldered on the SPI flash. These are soldered to a PCB which is connected to a logic analyzer.
Pascal Gujer@evilmaid.bsky.social · 8mo ago

Still on the “wanting to do this stuff” side? Join our mailing list and get alerted when we host the next hands-on training. www.hands-on-security.com/#trainings

This is probably the easiest way to perform reverse DNS lookups over IP address ranges using the built-in tool getent and bash brace expansion: getent hosts 130.59.{20,31}.{0..255} Useful if you are on a system/container with limited tools. #pentest #dns #linux

Output of the command showing multiple IP addresses and their hostnames assigned via reverse DNS entries.

📢 Confirmed! Emanuele Barbeno, Cyrill Bannwart, Yves Bieri, Lukasz D., Urs Mueller of Compass Security combined an arbitrary file write & cleartext transmission of sensitive data to exploit the @home_assistant Green. Their third round win earns them $20,000 and 4 Master of Pwn points. #Pwn2Own

I've been researching the Microsoft cloud for almost 7 years now. A few months ago that research resulted in the most impactful vulnerability I will probably ever find: a token validation flaw allowing me to get Global Admin in any Entra ID tenant. Blog: dirkjanm.io/obtaining-gl...

One Token to rule them all - obtaining Global Admin in every Entra ID tenant via Actor tokens

While preparing for my Black Hat and DEF CON talks in July of this year, I found the most impactful Entra ID vulnerability that I will probably ever find. One that could have allowed me to compromise ...

dirkjanm.io