Contact
Sechack#1869
Profile
Organization
- (Former) Theori Vulnerability Researcher
- Soongsil University InfoSec 25
- (Former) Sunrin Internet High School InfoSec 117th
- KITRI BoB 12th Vulnerability Analysis
- (Former) Layer7 Hacking Club
- cat :flag_kr: CTF Team
- (Former) TeamH4C Hacking Team
Introduction
I'm a university student passionate about cybersecurity and software development.
I enjoy participating in CTFs and wargames, with a focus on binary exploitation and web hacking.
I'm also working to improve my skills in reverse engineering and cryptography.
Outside of tech, I enjoy calisthenics and climbing as my main hobbies.
CTF & Award
2025
- DEF CON CTF 33 Finalist (Team Cold Fusion)
2024
- Whitehat Contest 2024 Junior 1st (₩6,000,000) (Team 야옹)
- ELECCON 2024 High School 1st (₩1,000,000) (Team 일렉트론)
- 육군 Cyber Security challenge 1st (₩1,000,000) (Team 냥코)
- CCE 2024 Junior 2nd (₩2,000,000) (Team 냥코)
- Codegate 2024 Junior Finalist
- Youth Information Security Festival 2nd
- 미래기술연구소 장학생 선정 (₩1,000,000)
- Hspace Space War Pwn 1st (₩160,000)
- HITCON CTF 2024 Finalist (Team Cold Fusion)
- DEF CON CTF 32 Final 9th (Team Cold Fusion)
- LINE CTF 2024 7th (Team Cold Fusion)
2023
- 2023 X-mas CTF 1st (₩100,000) (Team 크리스마스에여기서뭐하세요)
- HITCON CTF 2023 Final 4th (Team 프로그램털모찌)
- Cyber Guardians CTF 2023 1st (Team 냥코대전쟁)
- Whitehat Contest 2023 Junior 1st (₩6,000,000) (Team Orange)
- WACON CTF 2023 Junior 2nd (₩3,000,000) (Team The Orange)
- Youth Information Security Festival 1st
- Hacker's Playground 2023 3rd (Team Cy + Kr)
- Securinets CTF 2023 Finalist (Team cat :flag_kr:)
- ImaginaryCTF 2023 6th (Team cat :cy+:)
- CCE 2023 Junior 2nd (₩2,000,000) (Team 대학가고싶어요)
- Codegate 2023 Junior Finalist
- ACSC 2023 Korea 7th (Global 50th)
2022
- 2022 Christmas CTF 3rd (₩1,000,000) (Team Sechack여친구함)
- 2022 Layer7 CTF High School 1st
- 2022 HSpace CTF High School Pwn MVP
- TUCTF High School Top 10 (all 39th, Solo Play)
- Whitehat Contest 2022 Junior Finalist (Team 다음생엔존잘로환생할래)
- CCE 2022 Junior 2nd (₩2,000,000) (Team 플래그를 킵핑하면 탈모가 온다고 합니다!)
- DiceCTF 2022 @ HOPE 19th (Team C4C)
- WACON CTF 2022 Junior Finalist (Team 이세계 아이들)
- Break the Syntax CTF 2022 13th (Team C4C)
- Codegate 2022 Junior Finalist
2021
- 2021 Layer7 CTF Middle School 1st
- The Hacking Championship Junior 2021 Encouragement (₩300,000) (Team 씹덕팀명멈춰!)
- Hanse Cyber Security High School 7th Middle School Information Security Contest 1st
- Whitehat Contest 2021 Junior Finalist (Team 에밀리아)
- The 23rd Hacking Camp CTF 1st (Team Sechack여친구함)
- DIMI CTF 3rd
- Shakti CTF 2021 6th (Team TeamH4C, informality)
Bug Bounty
BoB 12 Project (Team 0dayResearchLab)
- CVE
- CVE-2024-20653 (Windows CLFS.sys)
- CVE-2023-31341 (AMD)
- CVE-2023-46859 (MSI)
- CVE-2023-46280 (Simens)
- CVE-2023-47569 (Jungo)
- CVE-2023-47570 (Jungo)
- CVE-2023-47571 (Jungo)
- CVE-2023-47572 (Jungo)
- CVE-2023-51776 (Mitsubishi)
- CVE-2023-51777 (Mitsubishi)
- CVE-2023-51778 (Mitsubishi)
- CVE-2024-22102 (Mitsubishi)
- CVE-2024-22103 (Mitsubishi)
- CVE-2024-22104 (Mitsubishi)
- CVE-2024-22105 (Mitsubishi)
- CVE-2024-22106 (Mitsubishi)
- CVE-2024-25086 (Mitsubishi)
- CVE-2024-25087 (Mitsubishi)
- CVE-2024-25088 (Mitsubishi)
- CVE-2024-26314 (Mitsubishi)
- KVE
- KVE-2023-5529
- KVE-2023-5530
- KVE-2023-5572
- KVE-2023-5573
- KVE-2023-5574
Mine
- kernelCTF mitigation instance 1-day exploit (CVE-2023-6931, $21000)