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  • Carnegie Mellon University
  • Pittsburgh, PA
  • X @0x10n

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@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

  • Ph.D. Student @ Carnegie Mellon University, Computer Science Department
  • B.S. @ KAIST (2018.02. ~ 2024.02.), CS&EE double major
  • Member of Plaid Parliament of Pwning (2024.08. ~)
  • 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.)

Vulnerability Disclosures & Rewards

🧑‍💻
  • CVE-2024-12692: Type confusion in V8 in Google Chrome
  • CVE-2024-54479: Type confusion in WebKit in Apple Safari
  • CVE-2024-12381: Type confusion in V8 in Google Chrome
  • CVE-2024-10231: Type confusion in V8 in Google Chrome, exploited on v8CTF
  • CVE-2024-10230: Type confusion in V8 in Google Chrome, exploited on v8CTF
  • CVE-2024-9602: Type confusion in V8 in Google Chrome, exploited on v8CTF
  • CVE-2024-9122: Type confusion in V8 in Google Chrome, exploited on v8CTF
  • CVE-2024-8194: Type confusion in V8 in Google Chrome, exploited on v8CTF
  • CVE-2024-8385: Type confusion in Mozilla Firefox
  • CVE-2024-6779: Out of bounds memory access in V8 in Google Chrome
  • CVE-2024-9859 (1-day): Google Chrome v8CTF exploit
  • CVE-2024-6100: Type confusion in V8 in Google Chrome (TyphoonPWN 2024)
  • CVE-2024-40789: Out of bounds memory access in WebKit in Apple Safari
  • CVE-2024-3914: Use after free in V8 in Google Chrome (Pwn2Own Vancouver 2024)
  • CVE-2024-2886: Use after free in WebCodecs in Google Chrome (Pwn2Own Vancouver 2024)
  • CVE-2023-3390 (1-day): Google kernelCTF exploit in all LTS/COS/Mitigation instances, with Dongok Kim
  • CVE-2024-27934: Use after free in Deno to ACE
  • CVE-2024-27933: Permission prompt bypass in Deno to ACE
  • CVE-2023-29199, 30547, 37466, 37903: Sandbox escape in vm2
    • CVE-2023-35926, GHSA-22rr-f3p8-5gf8: Directus, Backstage affected by vm2 sandbox escape
  • CVE-2022-35951: Heap overflow in Redis XAUTOCLAIM to RCE
  • CVE-2022-35977: OOM DoS in Redis via single-parameter-controlled SETRANGE / SORT(_RO)

Awards and Honors

🏅
  • Security Competition / CTFs
    • 2024
      • 1st Place, DEFCON 32 CTF as MMM
        • Awarded Black Badge
      • Winner of TyphoonPWN 2024
      • Winner of Pwn2Own Vancouver 2024
    • 2023
      • Challenge author of zer0pts CTF 2023
      • 1st Place, CODEGATE CTF 2023 University Div. as KAIST GoN
      • 1st Place, Cyber Conflict Exercise 2023 (Overall Championship) as The Goose
      • 1st Place, DEFCON 31 CTF as MMM
    • 2022
      • Organized 2022 Spring / Fall GoN Open Qual CTF
      • 2nd Place, Cyber Conflict Exercise 2022 General Div. as The Goose
      • 1st Place, WACON 2022 as The Goose
      • 2nd Place, zer0pts CTF 2022 as Super HexaGoN
    • 2021
      • 1st Place, Whitehat Contest Korea 2021 Military Div. as ㅡㅡㅡ본선진출커트라인ㅡㅡㅡ
      • 2nd Place, LINE CTF 2021 as KimchiSushi
      • 2nd Place, zer0pts CTF 2021 as K-Students
    • 2020
      • Challenge author of CODEGATE CTF 2020
      • 1st Place, Cyber Operations Challenge 2020 General Div. as KAIST GoN
      • 1st Place, SECCON 2020 OnlineCTF as HangulSarang
      • 1st Place, TokyoWesterns CTF 6th 2020 as D0G$
    • 2019
      • Finalist, DEFCON 27 CTF as KaisHack GoN
      • 2nd Place, Cyber Operations Challenge 2019 as GoN
      • 3rd Place, CODEGATE CTF 2019 University Div. as KAIST GoN
    • 2018
      • Participation Award, 2018 National Cryptography Contest II-A Div.
  • Academic Awards / Scholarship
    • Doctoral Research Fellowship, KFAS (Fall 2024 -)
    • KAIST Presidential Fellowship, KAIST (Spring 2020 - Fall 2023)
    • Presidential Science Scholarship, KOSAF (Spring 2020 - Fall 2023)
    • Department Honors Scholarship, School of Computing, KAIST (Spring 2020)
    • Honor Student Program, KAIST (Spring 2020)
    • National Scholarship for Science and Engineering, KOSAF (Spring 2018 - Fall 2019)
    • Dean's List
      • Spring 2023, Fall 2020, Spring 2020, Fall 2019, College of Engineering, KAIST
      • Fall 2018, Spring 2018, School of Freshman, KAIST

Invited Talks

🗣️

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