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(CTF) ETH Escape CTF 2024 writeup (Feel, Vest, MAZE)

As a member of Project Sekai, I authored 3 challenges. Working with mixy and Immunefi onsite was a very rewarding experience for me. The ETH Escape CTF is hosted by Ethereum Foundation ⚔ immune...

(CTF) blazCTF 2024 writeup (Chisel as a Service, teragas)

I played blaz CTF as KimchiPremium, had a lot of fun with the awesome kimchi hackers Chisel as a Service Chisel as a Service Mina just develops a highly robust Solidity sandbox! Connect to...

(CTF) SekaiCTF 2024 writeup (ZOO)

I made solidity assembly challenge in sekai ctf 2024. ended up with 13 solves. you can check the detail here ZOO welcome to assembly zoo There are two functions, fallback and commit (intern...

(CTF) justCTF 2024 writeup (Blockchains)

It was first time for me to solve move based challenge. Solved 3 blockchain challenges, World of Ottercraft, The Otter Scrolls, Dark BrOTTERhood ( all move based challenge ) The Otter Scrolls Al...

(CTF) realworld CTF 2024 writeup (SafeBridge)

web3 newbie’s solver for SafeBridge in rwctf 2024 Objective Drain the BRIDGE (L1ERC20Bridge) of its WETH balance. Setup The challenge setup is using the challenge.py file, with relayer.py also ...

(CTF) corCTF 2023 writeup (diophantus,babyWallet,utterly-tangled)

corCTF twitter participated with cat :flag_kr: and placed 3rd blockchain/baby-wallet (24 solves) //SPDX-License-Identifier: UNLICENSED pragma solidity ^0.8.17; // 100 ether contract BabyWall...

(CTF) Google CTF 2023 writeup (oldschool, ubf)

oldschool Analyzing the logic, there is a condition that when password is made into a 5x5 matrix and matrix multiplication is performed with a 5x5 matrix made using id after sbox, xor, and shift ro...

(CTF) SEETF CTF 2023 NOW, Murky SEEPass writeup

Date: June 12, 2023 rank: 1 team: ProjectSekai It’s the first writeup since joining the ProjectSekai. I joined the second day after CCE (local ctf organized by NIS). I took some reversing and smar...

(CTF) just CTF 2023 rustberry, manGO writeup

rustberry if (puVar1 != (undefined4 *)0x0) { puVar1[0x25] = 0x7; puVar1[0x29] = 0x1c; puVar1[0x2a] = 0xff; puVar1[0x18] = 0x3; puVar1[0x26] = 0x21; puVar1[0x19] = 0x1a; ...

(CTF) angstrom CTF 2023 noleek writeup

Date: April 27, 2023 team: ST4RT noleek - PWN #include <stdio.h> #include <stdlib.h> #define LEEK 32 void cleanup(int a, int b, int c) {} int main(void) { setbuf(stdout, NULL);...

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