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Achievements

Achievement: Starstruckx2Achievement: Arctic Code Vault ContributorAchievement: Pull Shark
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Organizations

@KAIST-GoN
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leesh3288/README.md

SeungHyun Lee (a.k.a. "Xion")

Interests

  • System Security
  • Binary Analysis
  • Computer Architecture
  • Vulnerability Research & Exploitation

Affiliation

  • Mandatory military service @ ROKA as Infosec Specialist (2021.03. ~ 2022.09.)
  • Undergrad @ KAIST (2018.02. ~), CS&EE double major
  • Member of KAIST GoN (2018.03. ~)
    • Former leader of KAIST GoN (2020.03. ~ 2021.02.)
  • Member of zer0pts (2022.03. ~)
  • KAIST CERT Student Senior Member (2018.08. ~ 2021.02.)
  • Project Manager of KAIST Startup Simulation Game dev team @ K-School (2018.09. ~ 2021.03.)

Awards and Honors

🏅
  • Security Competition / CTFs
    • 2022
      • Organized 2022 Spring GoN Open Qual CTF
      • Organized 2022 Fall GoN Open Qual CTF
      • WACON 2022 1st Place as The Goose
      • zer0pts CTF 2022 2nd Place as Super HexaGoN
    • 2021
      • Whitehat Contest Korea 2021 1st Place (Military Division) as ㅡㅡㅡ본선진출커트라인ㅡㅡㅡ
      • LINE CTF 2021 2nd Place as KimchiSushi
      • zer0pts CTF 2021 2nd Place as K-Students
    • 2020
      • Challenge author of CODEGATE CTF 2020
      • Cyber Operations Challenge (사이버작전경연대회) 2020 1st Place as KAIST GoN
      • SECCON 2020 OnlineCTF 1st Place as HangulSarang
      • TokyoWesterns CTF 6th 2020 1st Place as D0G$
      • 2020 Christmas CTF 1st Place
    • 2019
      • DEFCON 27 CTF Finalist as KaisHack GoN
      • Cyber Operations Challenge 2019 2nd Place as GoN
      • CODEGATE CTF 2019 University Division 3rd Place as KAIST GoN
    • 2018
      • 2018 National Cryptography Contest II-A Division Participation Award
  • Academic Awards / Scholarship
    • KAIST Undergraduate Dean's List
      • 2018 Spring, 2018 Fall, 2019 Fall, 2020 Spring, 2020 Fall
    • KAIST Presidential Fellowship Scholar
    • National Scholarship for Science and Engineering (2018 Spring ~ 2019 Fall)
    • Presidential Science Scholarship (2020 Spring ~)

Popular repositories

  1. CVE-2023-4911 CVE-2023-4911 Public

    PoC for CVE-2023-4911

    C 374 59

  2. WinPwn WinPwn Public

    Windows Pwnable Study

    Python 292 33

  3. CTF CTF Public

    Repo for storing CTF related stuff (Writeups, etc.)

    JavaScript 48 7

  4. pwintools pwintools Public

    Forked from masthoon/pwintools

    Basic pwntools for Windows

    Python 5

  5. osv osv Public

    C 5

  6. Tetris Tetris Public

    A tetris game with a genetically evolved heuristic AI. Developed in C/C++.

    C++ 1 1