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In this Write-Up, I am going to walk you through the bugcrowd’s open challenge to hackers. * Note: In case you’re reading this Write-Up without trying out the challenge. I request you to first give it a try and check this blog if you’re stuck. 1. Hint given:
An unbounded loop vulnerability is a type of security flaw that can occur in smart contracts when a loop does not have a defined maximum iteration limit.
A common method of checking EOA or a contract address, extcodesize function, has a vulnerability. Attackers can exploit it during contract construction, allowing them to bypass check and attack smart contracts.
In 2-Factor Authentication, when a user enters his password with the intention to log in the web application sends a temporary code to the user’s verified email address and when the user enters the code only then he will be able to interact with his account. Many websites and