Hyunsoo Cha Profile
Hyunsoo Cha

@soo_sudo

Followers
324
Following
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Statuses
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CTFer | Researcher | DEFCON CTF 2019-2024 Finalist | Aleph Infinite Lead @ENKI_official_X Research Team Tweets are my own

Joined January 2021
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@CyKorKU
CyKor
17 days
Weโ€™re excited to welcome Enki Whitehat (@ENKI_official_X ) as a sponsor of CyKor CTF (@cykorctf)! weโ€™re grateful for your partnership in taking this yearโ€™s competition to the next level. ๐Ÿš€ ENKI Whitehat is a leading South Korean offensive security company specializing in
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@ENKI_official_X
ENKI WhiteHat
5 months
Curious how the Codegate 2025 FullChain was meant to be pwned? From RCE to SBX to LPE... the path to SYSTEM is now public. Official write-up is live! #pwn #CTF #Codegate #RCE #SBX #LPE https://t.co/9p7wUFCjnI
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@ENKI_official_X
ENKI WhiteHat
2 years
Our research team wrote an article with a detailed analysis of Safari RCE (CVE-2023-37450). Check it out! https://t.co/x2EjkBkMVVโ€ฆ #safari #rce #cve202337450 #enki #whitehat
Tweet card summary image
medium.com
Clobber the world โ€” Endless side effect issue in Safari
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@CODEGATE_KR
CODEGATE
2 years
Codegate CTF 2024 Preliminary will start soon!๐Ÿš€๐Ÿš€๐Ÿš€ ๐Ÿ’ฐ๐Ÿ’ฐ๐Ÿ’ฐ Total Prizes (for Final) : 71M KRW (approx. $51k) CTFTime: https://t.co/3LJFvKyHVm Duration: 2024.06.01 10:00 - 2024.06.01 10:00 (UTC+9) Official Website: https://t.co/T72Doz9wRO Discord:
discord.com
Discord์—์„œ Codegate2024 Quals ์ปค๋ฎค๋‹ˆํ‹ฐ๋ฅผ ํ™•์ธํ•˜์„ธ์š”. 668๋ช…๊ณผ ์–ด์šธ๋ฆฌ๋ฉฐ ๋ฌด๋ฃŒ ์Œ์„ฑ ๋ฐ ํ…์ŠคํŠธ ์ฑ„ํŒ…์„ ์ฆ๊ธฐ์„ธ์š”.
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@c2w2m2
c2w2m2
2 years
We HypeBoy topped Plaid CTF 2024! ๐Ÿ‘‘ @_Reinose_en @justlikebono @munsiwoo @real_as3617 @mhibio_ptw @howdays1 @stanzz @soo_sudo @n1net4il @1nteger_c @c2w2m2 @pr0cf51 @cmy981224 @csapp3e ironore15 G0RiYa Thanks to the great support from dakuo & hellsonic
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@soo_sudo
Hyunsoo Cha
2 years
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@c2w2m2
c2w2m2
2 years
๋ฐํ”„์ฝ˜ ๋ณธ์„ ์„ 4์œ„๋กœ ๋งˆ๋ฌด๋ฆฌํ–ˆ์Šต๋‹ˆ๋‹ค. 14๋ช…์˜ ํ•œ๊ตญ์ธ์ด ๋ชจ์—ฌ ๋งŒ๋“  ๋‚ญ๋งŒ์€ ๋‚ด๋…„์—๋„ ๊ณ„์†๋ฉ๋‹ˆ๋‹ค. ๐Ÿ˜† HypeBoy got 4th place in #DEFCON ๐Ÿฅณ Keep your eyes on 14 koreans :))) https://t.co/pJa4cjGHHQ
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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
3 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
3 years
Codegate CTF 2023 Preliminary is coming. ๐Ÿš€๐Ÿš€๐Ÿš€๐Ÿš€๐Ÿš€๐Ÿš€ Here are the details: Duration: 2023.06.17 10:00 - 2023.06.18 10:00 (UTC+9) Official website: https://t.co/EKuhSM4aPH Discord:
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@c2w2m2
c2w2m2
3 years
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