whoami

Contact

Name posix
Blog blog.p6.is
Email posix.lee[at]gmail.com
Twitter twitter.com/po6ix

Profile

Security researcher loves to play CTF @FlatNetworkOrg

Work Experience

Sep, 2020 - Now
Mar, 2020 - Aug, 2020

Capture The Flag

2021 Bamboofox CTF1st place

Awarded on: Jan 18, 2021

The Flat Network Society
2020 ASIS CTF Finals3rd place

Awarded on: Dec 14, 2020

The Flat Network Society
2020 Dragon CTF 4th place

Awarded on: Nov 23, 2020

The Flat Network Society
2020 Balsn CTF 2nd place

Awarded on: Nov 16, 2020

The Flat Network Society
2020 KipodAfterFree CTF 2nd place

Awarded on: Nov 9, 2020

The Flat Network Society
2020 CyberSecurityRumble CTF 1st place

Awarded on: Nov 2, 2020

The Flat Network Society
2020 Cyber Conflict Exercise Finals 6nd place

Awarded on: Sep 29, 2020

Haim
2020 hackceler8 (Google CTF event) 2nd place

Awarded on: Oct 25, 2020

I Use Bing
2020 SECCON CTF 1st place

Awarded on: Oct 11, 2020

HangulSarang
2020 Cyber Conflict Exercise Quals 3rd place

Awarded on: Sep 27, 2020

Haim
2020 TokyoWesterns CTF 1st place

Awarded on: Sep 20, 2020

D0G$
2020 InterKosen CTF 2nd place

Awarded on: Jan 01, 2020

Defenit
2020 HacktivityCon CTF 5th place

Awarded on: Jan 01, 2020

Defenit
2020 WMCTF 8th place

Awarded on: Jan 01, 2020

DefenitelyZer0
2020 DEFCON CTF Final 12th place

Awarded on: Jan 01, 2020

koreanbadass
2020 CyBRICS CTF 2nd place

Awarded on: Jan 01, 2020

DefenitelyZer0
2020 TSG CTF 2nd place

Awarded on: Jan 01, 2020

DefenitelyZer0
2020 ASIS CTF Quals2nd place

Awarded on: Jan 01, 2020

DefenitelyZer0
2020 Plaid CTF 4th place

Awarded on: Jan 01, 2020

koreanbadass
2020 DEFCON CTF Quals 7th place

Awarded on: Jan 01, 2020

koreanbadass
2020 CONFidence CTF Quals 1st place

Awarded on: Jan 01, 2020

DDP
2020 WeCTF 1st place

Awarded on: Jan 01, 2020

st9846 (st98 + posix)
2020 redpwn CTF 7th place

Awarded on: Jan 01, 2020

Defenit
2020 Codegate CTF 10th place

Awarded on: Jan 01, 2020

Posix, college part
2020 X-MAS GTF 3nd place

Awarded on: Jan 01, 2020

Defenit
2020 Securinets CTF 2nd place

Awarded on: Jan 01, 2020

Defenit
2020 Pragyan CTF 3rd place

Awarded on: Jan 01, 2020

Defenit
2020 Zer0pts CTF 9th place

Awarded on: Jan 01, 2020

Defenit
2019 SECCON CTF Quals 10th place

Awarded on: Jan 01, 2019

SEDefenit
2019 Christmas CTF 2nd place

Awarded on: Jan 01, 2019

Anti ppp
2019 Samsung SSTF Open CTF 3rd place

Awarded on: Jan 01, 2019
2019 DVP Korea Blockchain CTF 1st place

Awarded on: Jan 01, 2019

Posix
2019 HolyShield CTF 2nd place

Awarded on: Jan 01, 2019

Defenit
2019 BISC Open CTF 1st place

Awarded on: Jan 01, 2019

Posix
2019 Rooters CTF 1st place

Awarded on: Jan 01, 2019

Defenit

Speaker

Advanced Weaponization of Prototype Pollution in Node.js, Rootcamp 2021

Published on: 2021
Practical Methods to Exploit JS Application using Prototype Pollution, POC 2020

Published on: 2020
The Beginning and End of Web Hacking, HackingCamp 2019

Published on: 2019

Publications

DAPP: automatic detection and analysis of prototype pollution vulnerability in Node.js modules, International Journal of Information Security (IJIS)

Published on: 2021
A Study on the Node.js Vulnerability Analysis Methodology, Korea Information Processing Society (KIPS)

Published on: 2019

Project

NodeJS Module Vulnerability Automation Analysis, Best of the Best 8th

Jan, 2019

CVE-2020-7707 CVE-2020-7721 CVE-2020-7701 CVE-2020-7717 CVE-2020-7715 CVE-2020-7716 CVE-2020-7719 CVE-2020-7700 CVE-2020-7702 CVE-2020-7704 CVE-2020-7714 CVE-2020-7706 CVE-2020-7724 CVE-2020-7727 CVE-2020-7718 CVE-2020-7725 CVE-2020-7722 CVE-2020-7703 CVE-2020-7723