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Articles

2023


Trusted 2
HackDay 2023 Cryptography
ECDSA nonce reuse
Trusted
HackDay 2023 Cryptography
Length extension attack to forge a valid hash
Taurus ACS
HackDay 2023 Reverse
Tauri application reverse
Nanomachine
HackDay 2023 Reverse
Serial code verification based on equations
Gate
HackDay 2023 Web3
Privileges check bypass and storage slot computation
Disclosure
HackDay 2023 Web3
Recovery of deployed contract address and inspection of NFTs metadata on IPFS
Diamond
HackDay 2023 Web3
Exploitation of tx.origin and delegatecall to steal ERC20 tokens
Defuser
HackDay 2023 pwn
tcache poisonning with safe linking

2022


Trucha bug
Root-Me CTF Crypto
RSA signature bypass due to vulnerable implementation
RPN
Root-Me CTF Prog
Reverse polish notation expressions computation
DFS
Root-Me CTF Prog
Depth first search algorithm application on an oriented graph
Physics quizz speedrun
Root-Me CTF Prog
Websocket based physics quizz automation
Easy XOR
Root-Me CTF Crypto
Hamming distances computation and frequency analysis to recover an unknown XOR encoded message
CVE finder engine
Root-Me CTF Web
CQL injection and database leak into incremental ASCII hash bruteforce
Base on fire
Root-Me CTF Web
Firestore security rules misconfiguration
Protonic vault
Root-Me CTF Reverse
Bytenode encoded Electron application bypass
Gate keeper
Root-Me CTF Reverse
eBPF rootkit analysis
They always think they got it
HeroCTF v4 Blockchain
Computation of the slot number used to store our guess number in the contract’s storage
Ready to hack
HeroCTF v4 Blockchain
Solidity smart contract vulnerable to re entrancy
Deadalus
HeroCTF v4 Prog
Find the number of loops in each maze with a recursive search