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Profile

  • W4llz ( 2026.04 ~ )
  • ExMoK ( 2026.03 ~ )
  • Google Cloud VRP - Honorable Mention ( 2026.01 )
  • R.O.K NAVY - CERT ( 2024.06 ~ 2026.02 )
  • ๋ฐฑ์„๋Œ€ํ•™๊ต NGMS LAB ( 2023.03 ~ )
  • ๋ฐฑ์„๋Œ€ํ•™๊ต HUB ( 2023.03 ~ )
  • ์ธ์ฝ”๊ทธ๋‹ˆํ†  2021 ํ”„๋กœ์ ํŠธ ๋ฐ ํ–‰์‚ฌ ์ฐธ๊ฐ€ ( Anti-root )
  • KSCY 17 STAFF ( ์ฒญ์†Œ๋…„ )
  • ํ˜„๋Œ€์˜คํ† ์—๋ฒ„ ํ™”์ดํŠธํ•ด์ปค ์–‘์„ฑ ๊ต์œก ( 2022 & ์šฐ์ˆ˜ ์žฅํ•™์ƒ )

๐Ÿ‘พ Discovered Vulnerabilities

[CVE-2026-48718] Vulnerability discovered in Firebird

  • (Technical details under coordinated disclosure until official release)

[CVE-2026-1665] Command Injection in nvm

  • Target: nvm-sh/nvm
  • Summary: nvm์ด wget์œผ๋กœ ํŒŒ์ผ์„ ๋‹ค์šด๋กœ๋“œํ•  ๋•Œ ํ™˜๊ฒฝ ๋ณ€์ˆ˜ ๊ฒ€์ฆ์ด ๋ˆ„๋ฝ๋˜์–ด, ๊ณต๊ฒฉ์ž๊ฐ€ ์‰˜ ๋ช…๋ น์–ด๋ฅผ ๊ฐ•์ œ๋กœ ์‹คํ–‰์‹œํ‚ฌ ์ˆ˜ ์žˆ๋Š” ์ปค๋งจ๋“œ ์ธ์ ์…˜(Command Injection) ์ทจ์•ฝ์ 
  • Advisory: GHSA-4fc5-r4vr-8rp7

[CVE-2025-69262] Command Injection in pnpm

  • Target: pnpm/pnpm
  • Summary: ํ™˜๊ฒฝ ๋ณ€์ˆ˜ ์น˜ํ™˜ ๋กœ์ง์„ ์•…์šฉํ•œ OS ๋ช…๋ น์–ด ์‚ฝ์ž… ์ทจ์•ฝ์ . CI/CD ๋ฐ ๋นŒ๋“œ ํ™˜๊ฒฝ์—์„œ ์ž„์˜ ์ฝ”๋“œ ์‹คํ–‰ ์œ„ํ—˜.
  • Advisory: GHSA-2phv-j68v-wwqx

[CVE-2025-14550] Potential denial-of-service vulnerability via repeated headers when using ASGI

  • Target: django/django
  • Summary: ์ค‘๋ณต๋œ HTTP ํ—ค๋”๋ฅผ ์ฒ˜๋ฆฌํ•  ๋•Œ ๋ฌธ์ž์—ด์„ ๋ฐ˜๋ณตํ•ด์„œ ํ•ฉ์น˜๋Š” ๋น„ํšจ์œจ์ ์ธ ๋ฐฉ์‹(Super-linear) ๋•Œ๋ฌธ์—, ๊ณต๊ฒฉ์ž๊ฐ€ ์ ์€ ๋น„์šฉ์œผ๋กœ ์„œ๋ฒ„๋ฅผ ๋งˆ๋น„์‹œํ‚ฌ ์ˆ˜ ์žˆ๋Š” ์„œ๋น„์Šค ๊ฑฐ๋ถ€(DoS) ์ทจ์•ฝ์ 
  • Advisory: GHSA-33mw-q7rj-mjwj

๐Ÿšฉ Activity

  • 2026

    • Break The Syntax CTF 2026 2nd (Team W4llz)
    • TJCTF 2026 4th (Team W4llz)

  • 2025

    • ํ™”์ดํŠธํ–‡ ์ฝ˜ํ…Œ์ŠคํŠธ 2025 ๋ณธ์„  (Team 1TSN0R1)
    • CCE 2025 ๋ณธ์„  (Team Root or Die)

  • 2024

    • ํ•ด๊ตฐ AI ๊ฒฝ์ง„๋Œ€ํšŒ ๋ณธ์„  (Team CERT)
    • ํ™”์ดํŠธํ–‡ ์ฝ˜ํ…Œ์ŠคํŠธ 2024 ๋ณธ์„  (Team ์šฐ์Šนํ•˜๋ฉด ์ „๋ฌธํ•˜์‚ฌ)

๐Ÿ›ฐ๏ธ Project

  • HUB ACADEMY Platform
  • HUB CTF Platform
  • GZ::CTF Platform (Korean Translate)

Contact

  • ์–‘์ง€์šฉ(Jiyong Yang)
  • i@sy2n0.me / ๊ฐœ์ธ ์ด๋ฉ”์ผ
  • contact@sy2n0.me / ๊ฐœ์ธ ์—…๋ฌด์šฉ ์ด๋ฉ”์ผ (for business)

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