Ahn Ki Chan

@Externalist

Bughunting & Exploitation

South Korea
Joined January 2009

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  1. Pinned Tweet
    23 Jan 2019

    My first blog post at ! It was an interesting bug to work with, and there's probably better ways to do it, but this is how I did it. I'm curious what the Blade team's solution was to this problem. 🙂

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  2. Retweeted
    Jan 21
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  3. Retweeted
    Jan 17

    New blog post: cuck00 A XNU/IOKit info leak 1day killed in iOS 13.3.1 beta 2.

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  4. Retweeted
    Jan 16

    After a lot of work and some crypto-related delays, I couldn't be more proud to publish 's and mine latest research - The complete overview of CET internals on Windows (so far!):

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  5. Retweeted
    Jan 15

    Assert yourself on the browser playground with ’s guide to hunting Chrome IPC sandbox escapes:

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  6. Retweeted
    Jan 14

    I'm excited to share my post about discovering & exploiting multiple critical vulnerabilities in Cisco's DCNM. Busting Cisco's Beans :: Hardcoding Your Way to Hell PoC exploit code:

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  7. Retweeted
    Jan 9

    I'm very excited to share my blogpost series (including PoC code) about a remote, interactionless iPhone exploit over iMessage:

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  8. Retweeted
    Jan 7

    Full analysis and exploit for Windows kernel ws2ifsl use-after-free (CVE-2019-1215) by our researcher

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  9. Retweeted
    Jan 6

    New blog post. ARM hardware bug. In the specification.

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  10. Retweeted
    Jan 1

    Exploiting Wi-Fi stack on Tesla Model S. Details of vulnerabilities and exploition:

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  13. Retweeted
    29 Dec 2019

    The talk by about building KTRW is up! Great work by an amazing guy :) This was a serious year for iOS research, a lot of non trivial gaps have been crossed by the great community :)

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  14. Retweeted
    28 Dec 2019

    Our 36c3 presentation video : and slides: 😃 It's really a nice party. Hope to see you next year.

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  15. Retweeted
    28 Dec 2019
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  16. Retweeted
    27 Dec 2019
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  17. Retweeted
    27 Dec 2019

    Hey guys here's my kernel exploit (+ pov) writeup talked about in his talk:

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  18. Retweeted
    27 Dec 2019

    I hope you enjoyed the talk! I was quite nervous for my first time talking at a conference You might want to check out the full version of my slides with a bit more details:

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  19. Retweeted
    24 Dec 2019

    Writeup on how I made $40,000 breaking the new Chromium Edge using essentially two XSS flaws.

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  20. Retweeted

    In the final blog of our Top 5 bugs of 2019, details a privilege escalation via the core shell COM registrar object in .

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  21. Retweeted

    For Day 4 of our Top 5 bugs of 2019, details how the duo used a RegExp vuln in the infotainment system to win a Model 3 at this year.

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