2014-07-19: CONFidence 2014 video from our talk on CTFs

Just a quick note: the video from j00ru's and my talk from this year's CONFidence edition is now online. As mentioned in the previous post on the topic, the talk was called "On the battlefield with the Dragons" and consisted of a selection of interesting CTF task solutions with some useful tips and trick near the end.

Links: video, slides.

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2014-08-13: Dragon Sector Update: top3 w Las Vegas!

Jak zwykle latem panuje CTFowa susza (co zmieni się pod koniec roku) i CTFy ograniczają się w zasadzie do finałów offline. Ostatnio były dwa w których braliśmy udział - Nuit du Hack CTF Finals 2014 w Paryżu oraz DEF CON CTF 2014 w Las Vegas, NV. Oba CTFy były w formacie Attack-Defense (w którym mamy sporo mniej doświadczenia niż w Jeopardy w które zazwyczaj gramy), ale udało nam się wywalczyć, kolejno, czwarte oraz trzecie miejsce. Niniejszy update poświęcony jest wyłącznie DEF CON CTF.

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EN Security papers and research notes

Some conference slides are linked at the bottom of this page.

EN Selected vulnerabilities

The full list of vulnerabilities discovered by me (including collaborative work) can be found here (please note that the list might be out of date).

The Google Application Security / Research site might also contain some of my findings.

EN Coding (selected posts)
EN Tools and libraries
  • PiXieServ is a simplified PXE (network boot) server for Windows and Linux-based OS, created for testing of very small home-made OS. See also the post about it.
  • ExcpHook, a system-wide exception monitor for Windows XP 32-bit. Useful if you're fuzzing something that doesn't like having a debugger attached.
  • Ent is an entropy measuring tool for reverse engineering reconnaissance (see also a post explaining how to use it).
  • HiperDrop is a simple command line process memory dumper for Windows, with a few different work modes.
  • asmloader - this little app executes headerless machine code (compiled assembly code). It's meant to be an aid in learning/teaching and playing with assembly, as well as the right tool when you just need to execute some machine code.
  • NetSock is a simple socket/networking lib/wrapper for C++ I've wrote back in 2003 and update from time to time - I use it for most of my network-enabled projects.
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