Telephone

Claim ownership of the Telephone contract.

Vulnerable Code

Analyze the Solidity code below to find the vulnerability.

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

contract Telephone {

  address public owner;

  constructor() {
    owner = msg.sender;
  }

  function changeOwner(address _newOwner) public {
    if (tx.origin != msg.sender) {
      owner = _newOwner;
    }
  }
}

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Explain the vulnerability and how to exploit it.

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Hints (3)

Just a little peak

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Hint 3

Explanation

Discomfort = Learning

Telephone

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