Hyunsoo Cha Profile
Hyunsoo Cha

@soo_sudo

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315
Following
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CTFer | Researcher | DEFCON CTF 2019-2024 Finalist | Aleph Infinite Tweets are my own

Joined January 2021
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@soo_sudo
Hyunsoo Cha
1 month
RT @ENKI_official_X: Curious how the Codegate 2025 FullChain was meant to be pwned? From RCE to SBX to LPE. the path to SYSTEM is now pub….
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enki.co.kr
Codegate2025 FullChain Write-up
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@soo_sudo
Hyunsoo Cha
1 year
RT @ENKI_official_X: Our research team wrote an article with a detailed analysis of Safari RCE (CVE-2023-37450). Check it out! https://t.co….
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medium.com
Clobber the world — Endless side effect issue in Safari
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@grok
Grok
3 days
Join millions who have switched to Grok.
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@soo_sudo
Hyunsoo Cha
1 year
RT @CODEGATE_KR: Codegate CTF 2024 Preliminary will start soon!🚀🚀🚀. 💰💰💰 Total Prizes (for Final) : 71M KRW (approx. $51k). CTFTime: https:/….
discord.com
Discord에서 Codegate2024 Quals 커뮤니티를 확인하세요. 693명과 어울리며 무료 음성 및 텍스트 채팅을 즐기세요.
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@soo_sudo
Hyunsoo Cha
1 year
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@soo_sudo
Hyunsoo Cha
2 years
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@soo_sudo
Hyunsoo Cha
2 years
RT @c2w2m2: 데프콘 본선을 4위로 마무리했습니다. 14명의 한국인이 모여 만든 낭만은 내년에도 계속됩니다. 😆. HypeBoy got 4th place in #DEFCON 🥳.Keep your eyes on 14 koreans :))). h….
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@soo_sudo
Hyunsoo Cha
2 years
I'm uncertain about being an organizer next year. But if i do, I'll ensure to engage with the teams involved prior to making any public announcements.
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@soo_sudo
Hyunsoo Cha
2 years
However, unlike that case, what I was overlooked in this case is that it may not be "obvious cheating". It is certain that to be disqualified by the rules, but there may be a "victim" to it.
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@soo_sudo
Hyunsoo Cha
2 years
2 years ago, a similar anti-cheating mechanism was applied in a domestic CTF. (of course, unlike codegate, there were many challenges for beginners and there were limit of team size (<=4)), and a total of 22 teams were caught cheating on 6 challenges. (obvious cheating).
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@soo_sudo
Hyunsoo Cha
2 years
FYI : The total prize money for the final round has been increased. totally 86 million KRW (approx. $65,000 worth).
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@soo_sudo
Hyunsoo Cha
2 years
Codegate CTF 2023 Preliminary is coming. 🚀🚀🚀🚀🚀🚀. Here are the details:. Duration: 2023.06.17 10:00 - 2023.06.18 10:00 (UTC+9). Official website: Discord:
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