Youngjoo (Jay) Lee

Browser Security @Apple | alias NextLine | CTFs w/ WreckTheLine, CodeRed(KR)

[Youngjoo (Jay) Lee @ashuu_lee]

I got $7500 from VRP..! This is my first chrome bounty.

[Youngjoo (Jay) Lee @ashuu_lee]

This was my first presentation ever! People are so nice and place is also great :) Thank you for @DefCampRO

[FeDEX @FetchDEX]

The GOAT @ashuu_lee

[FeDEX @FetchDEX]

“I wish there was a way to know you're in the good old days before you've actually left them.”

[xvonfers @xvonfers]

[1511448]V8 Spectre-v1
Vulnerability in V8-optimized code that allows speculative memory access to arbitrary 64-bit memory addresses, which bypasses the V8 Sandbox.
https://t.co/XSYEmeo35h

@5aelo Juhee Kim Youngjoo Lee

[WreckTheLine @WreckTheLine]

What started as a team of 5 high school students in 2018, is now a top 10 international team with members from all over the world.
1st place: 8 CTFs
Single-digit place: 18 CTFs
Attended on-site finals: 10
Organized CTFs: 3

Wishing you all a Happy and Blessed 2024!

[Youngjoo (Jay) Lee @ashuu_lee]

@FetchDEX @gunsnrosesgirl3 omg I can't eat it

[Youngjoo (Jay) Lee @ashuu_lee]

#BHMEA23 It was really nice. great challenges, good people, exciting trip, delicious food, and awesome venue. Thank you so much to the organizers! And thanks to my teammates @WreckTheLine + two special guys(@myriabreak badspell)

[DiceGang @dicegangctf]

We had a great time at DEF CON CTF with @SuperGuesser and @codered_korea! Shout out to @osec_io for sponsoring our merch, and @MiscreantsHQ for the great shirt designs!

[Youngjoo (Jay) Lee @ashuu_lee]

Beyond excited🔥🔥

[Super Guesser @SuperGuesser]

Collaborated with @dicegangctf and CodeRed in DEFCON CTF! Finally, we qualified as 4th place in qual 💪💪

[Youngjoo (Jay) Lee @ashuu_lee]

I recently joined @osec_io as an auditor. And I became a $BONK millionaire at OtterSec's poker night :) It was very amusing! I am looking forward to a lot of experience in web3 with them.

[Chromium Disclosed Security Bugs @BugsChromium]

Security: heap-buffer-overflow in TableView (reward: $4000) https://t.co/2uBT4K4LAN

[Youngjoo (Jay) Lee @ashuu_lee]

I also played DC30 with StarBugs! There were a lot of operational issues, but the on-site CTF was pretty fun after a long time. And we took 3rd place! Thanks to our team.

[c2w2m2 @c2w2m2]

Played defcon30 with StarBugs and placed 3rd. And i won livectf!

[Youngjoo (Jay) Lee @ashuu_lee]

UAF in Views :)

[Youngjoo (Jay) Lee @ashuu_lee]

GG! I played with StarBugs.

[Youngjoo (Jay) Lee @ashuu_lee]

드디어..!

[Youngjoo (Jay) Lee @ashuu_lee]

I played Google CTF with WreckTheLine and solved the FULLCHAIN. My exploit is here.
https://t.co/hG6PBcUG9O

[Youngjoo (Jay) Lee @ashuu_lee]

@jun0jang 한번 더가자 !

[Youngjoo (Jay) Lee @ashuu_lee]

We got the 3rd prize~~ @codered_korea

[Youngjoo (Jay) Lee @ashuu_lee]

@__lord_idiot yeah I think so :( thank you very much!

[Youngjoo (Jay) Lee @ashuu_lee]

Today I got second bounty from VRP :) It was UAF vulnerability in stable chrome.