author
samuzora

playing ctfs since 2021

Hi!! Welcome to my blog~ You can find my CTF writeups and other cybersecurity-related stuff here!

I’m Lucas Tan, an 18-year-old student from Singapore. I’ve recently graduated from Anglo-Chinese School (Independent) and am waiting to enlist in National Service. I love playing CTFs and pwning stuff :)

I’m currently a member of WreckTheLine and not looking for a team at the moment. I also play CTFs more casually under slight_smile.

At the moment, I’m maining pwn and web, and learning blockchain, kernel pwn and v8 pwn.

Besides playing, I’ve also organized HACK@AC 2022 and 2024, and set challenges for some other CTFs.

Resume

My resume can be found here. Feel free to look at the Typst source as well :)

Blog

This blog was built using Astro, with Vue, TailwindCSS, and MDX integration, hosted with Vercel. Source can be found here, go check it out!

CVEs

CVE-2024-36361

RCE in Pug <=3.0.2

CVE-2021-40453

RCE in Squirrelly <=9.0.0

CTFs

2021

idekCTF
7th place
MetaRed CTF
1st place
Sieberrsec
3rd place

2022

Vu Cyberthon
9th place
Imperial CTF
13th place
Winja x Nullcon
3rd place
YCEP
1st place
Bluehens
2nd place
Codegate Junior
4th place

2023

Sieberrsec
1st place
NUS Grey Cat the Flag
6th place
Cyberthon
2nd place
CDDC
5th place
AYCEP
3rd place
Codegate Junior
7th place
TISC 2023
Level 8/10 (14th place)

2024

ACSC
2nd place SG (30th Global/Asia)
Cyberthon
3rd place
Codegate Junior Quals
5th place
Sekai CTF 2024
11th place
TISC 2024
Level 11/12 (2nd place)