Red Teaming. Security Research. Continuous Penetration Testing. Threat Intelligence.
Ulm & Mannheim
Joined July 2014
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Finest hacking 💪
Happy announcement: My colleague and me will present a talk at hardwear.io NL 2026, "Vulnerabilities That Get Under Your Skin: Targeting the World’s Best-Selling Infusion Pumps". 100% human-brain VR 😛
Highly recommend the writeup from our @flomb_ and congrats on this well-deserved achievement!
incredibly excited to share that my research 'Playing with HTTP/2 CONNECT' made the final @PortSwigger Top 10 Web Hacking Techniques of 2025!
A huge thank you to everyone who voted. It’s a privilege to be featured alongside such talented researchers.
portswigger.net/research/top…
You like technical deep dives into binary exploitation and crazy heap wizardry? Then you'll like our blog post by @0xor_solo about unauth'ed RCE in NetSupport Manager aka CVE-2025-34164 & CVE-2025-34165 code-white.com/blog/2026-01-…
Our 2024 applicants challenge is officially #roasted: the full BeanBeat × Maultaschenfabrikle walkthrough is now online. Unwrap the write-up at apply-if-you-can.com/walkthr… and revisit the hacks that escalated from cold brew to full breach.
Latest ≠ Greatest? A Retrospective Analysis of CVE-2025-59287 in Microsoft WSUS from our very own @mwulftange who loves converting n-days to 0-days code-white.com/blog/wsus-cve…
CODE WHITE proudly presents #ULMageddon which is our newest applicants challenge at apply-if-you-can.com/ packaged as a metal festival. Have fun 🤘 and #applyIfYouCan
Ten days left. The warm-up fades. Maultaschen were soft. Bean Beats were dark and burnt. But the beats of #ULMageddon will be brutal! #applyIfYouCan
We always love a good challenge. That’s why we’re sponsoring the 10th FAUST CTF. Game on at 2025.faustctf.net/
We've added a new demo to NewRemotingTricks that makes deploying a MarshalByRefObject (e.g., WebClient) even easier: System.Lazy<T> creates an instance of T on serialization, which is probably more likely to be allowed than a XAML gadget getting through. github.com/codewhitesec/NewR…
We have reproduced "ToolShell", the unauthenticated exploit chain for CVE-2025-49706 + CVE-2025-49704 used by @_l0gg to pop SharePoint at #Pwn2Own Berlin 2025, it's really just one request! Kudos to @mwulftange
To clarify: we did not discover these bugs - all credit goes to @_l0gg. We diffed the patches, quickly built a working exploit internally (and identified another auth bypass afterwards)
Yes, we're beating a dead horse. But that horse still runs in corporate networks - and quietly gives attackers the keys to the kingdom. We're publishing what’s long been exploitable. Time to talk about it. #DSM #Ivanti code-white.com/blog/ivanti-d…
CODE WHITE GmbH retweeted
At @codewhitesec we have a red team style hacking challenge each year which is also a great way to practice/test/improve your skills ;)
Our crew members @mwulftange & @frycos discovered & responsibly disclosed several new RCE gadgets that bypass #Veeam's blacklist for CVE-2024-40711 & CVE-2025-23120 as well as further entry points following @SinSinology & @chudyPB's blog. Don’t blacklist, replace BinaryFormatter.
Ever wondered how Kurts Maultaschenfabrikle got hacked in 2023? The full story, all technical details, out now ;-) apply-if-you-can.com/walkthr…
Using Telerik Reporting or Report Server? Patch now to fix 3 RCEs @mwulftange found (CVE-2024-8015, CVE-2024-8014, CVE-2024-8048). Telerik vulns have a history of being exploited by threat actors according to @CISACyber Details at code-white.com/public-vulner…
BeanBeat has been aquired by Kurts Maultaschenfabrikle! You don't know what that means? Head over to apply-if-you-can.com to find out in challenges that, without exception, stem from real-world vulns #uncompromisingRealism #finestHacking
Think your #kubernetes or #kubelet API is secured with auth? Think again if you expose #tekton for which our crewmember @flomb_ has some nice writeup regarding RCE & proxy risks.
Published my write-up regarding two vulnerabilities in the Tekton Dashboard.
blog.flomb.net/posts/tekton/