Unit Description
Explore numeric errors in Solidity and how to exploit and defend against them.
Objectives

Topics Covered

  • Caller verification using msg.sender and tx.origin
  • onlyEOA and onlyOwner modifiers
  • Exploiting caller-related vulnerabilities in Solidity code

Recommended For

  • Developers interested in smart contract security
  • Individuals focusing on blockchain technology

Prerequisite Knowledge

  • Basic understanding of smart contracts
  • Familiarity with Solidity programming
Composition
Numeric Errors
Numeric Errors
[Exercise] Integer Overflow
Exploit Tech: Integer Overflow
SC: Dreamhack Token Shop
Rating
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Solidity: Numeric Errors
9.8
(6)
Tier 2 Easy
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