Web3 And Blockchain Security:Pen Testing & Bug Bounty Part1

Name: Web3 And Blockchain Security:Pen Testing & Bug Bounty Part1
Rating: 4.1 (117 reviews)

Unlocking Web3 Security Secrets: Ethical Hacking, Bug Bounties, and Smart Contract Defense in Blockchain

Created byArmaan Sidana, Tanya Goyal, Neha .

Last updated 4/2024

English

English [Auto],

What you'll learn

Evolution of the Web: Brief history of Web 1.0, Web 2.0, Web3.0
Blockchain Fundamentals and Smart Contracts
Common Web3 Protocols
Brief introduction to Bugs in Web 3.0
Smart Contract Vulnerabilities
Web3 Network Attacks
Web3 Application Security
Network and Protocol Vulnerabilities
Financial and Trading Vulnerabilities
Data Security and Privacy Vulnerabilities
Cross-Chain and Interoperability Vulnerabilities
Miscellaneous Vulnerabilities
Web3 Penetration Testing Methodology
Hands-on Labs to BugBounty on Web3
Web3 Architecture
Decentralized Finance
Decentralized Autonomous Organizations
Non-Fungible Tokens
Web3 js Library
Ethers js Library
Distributed Ledger Technology
Block Structure and Hashing
Consensus Mechanisms (Proof-of-Work, Proof-of-Stake, Byzantine Fault Tolerance
Public vs Private Blockchains
Solidity Programming Language
Smart Contract Lifecycle
Gas Fees and Transaction
Advantages and Disadvantages of Smart Contracts
Blockchain Network Attacks
Consensus Mechanism Vulnerabilities
Sybil Attacks and Spam Transactions
Oracle Manipulation
Denial-of-Service (DoS) Attacks on Blockchains
Smart contract reentrancy vulnerability exploitation using Remix and Truffle
Integer overflow/underflow in smart contracts
Smart contract self-destruct vulnerabilities (exploitation with Solidity flaw)
Cross-site scripting (XSS) in dApp interfaces (exploitation with Burp Suite or OWASP ZAP)
SQL injection in decentralized databases (exploitation with SQLmap)
Front-end injection attacks in dApps (exploitation with JavaScript injecteb3 wallets (exploitation using Metamask or WalletConnect)
Denial-of-Service (DoS) attacks on blockchain networks
Exploiting gas price vulnerabilities in Ethereum transactions
Time-based attacks on smart contracts
Replay attacks on cross-chain transactions
Exploiting gas limit vulnerabilities
Blockchain reorganization attacks
Supply chain attacks on blockchain infrastructure

Course content

5 sections • 34 lectures • 4h 42m total length

Introduction to WEB39:14
Evolution of the Web: Brief history of Web 1.0, Web 2.0, and the core principles of Web3
Web3 Architecture10:57
Contrast Web2 and Web3 architecture, and show how front end and back end interact with a blockchain via a node server, EVM, and smart contracts, including private keys and MetaMask.
Decentralized Finance5:02
Compare traditional lending with decentralized finance (DeFi) to see how DApps and smart contracts enable asset deposits, collateralized loans, and interest payments without central authorities.
Decentralized Autonomous Organizations6:05
Non-Fungible Tokens4:29
Web3.js Library2:12
Ethers.js Library1:31
Distributed Ledger Technology7:27
Block Structure and Hashing19:09
Explain the block structure and hashing, including block number, data, previous hash, and nonce, and how miners use the mempool and a target to mine with sha-256.
Consensus Mechanisms (Proof-of-Work, Proof-of-Stake, Byzantine Fault Tolerance11:57
Public vs Private Blockchains3:21
Solidity Programming Language13:04
Smart Contract Lifecycle8:16
Gas Fees and Transaction12:51
Advantages and Disadvantages of Smart Contracts9:50
Smart contracts offer autonomy, transparency, cost savings, and strong security via blockchain. However, they are complex, immutable, may face scalability issues, and depend on external data sources like oracles.

Blockchain Network Attacks18:44
Consensus Mechanism Vulnerabilities15:13
Sybil Attacks and Spam Transactions5:36
Oracle Manipulation10:00
Explore how oracle manipulation affects smart contracts by tampering data, manipulating data feeds, and targeting oracle infrastructure, causing financial loss and smart contract exploits.
Denial-of-Service (DoS) Attacks on Blockchains9:31
Explore how denial-of-service attacks disrupt blockchains by flooding networks with high-volume traffic, transaction spam, and block spam, causing congestion, isolation of nodes, and economic losses.

Smart contract reentrancy vulnerability exploitation using Remix and Truffle7:03
Explore how smart contract reentrancy works, demonstrated with Remix and Truffle, including deposit and withdraw scenarios, attacker patterns, and protections like mutex, guard conditions, and call-stack checks.
Integer overflow/underflow in smart contracts7:25
Smart contract self-destruct vulnerabilities (exploitation with Solidity flaw)4:30

Denial-of-Service (DoS) attacks on blockchain networks8:31
Exploiting gas price vulnerabilities in Ethereum transactions9:12
Learn how gas price vulnerabilities in Ethereum enable front running, miner manipulation, and DDoS attacks through the gas guzzler concept and scripted examples.
Time-based attacks on smart contracts8:22
Replay attacks on cross-chain transactions12:55
explains replay attacks on cross-chain transactions, showing how an intercepted valid transfer can be replayed on another blockchain to lose funds, with a practical vulnerable contract demo and impact discussion.
Exploiting gas limit vulnerabilities11:26
Explain gas limit vulnerability on blockchain, where a contract loop exhausts gas and leads to a transaction failing with an out-of-gas error, yet users still incur gas costs.
Blockchain reorganization attacks3:33
Supply chain attacks on blockchain infrastructure6:17

Requirements

8GB Ram PC
Basics Of Cyber Security
Basics Of Blockchain

Description

Welcome to the cutting-edge world of Web3 penetration testing! In this comprehensive Udemy course, you'll delve into the intricate architecture of Web3, exploring its evolution from Web 1.0 to the decentralized marvel of Web3. Uncover the core principles underpinning Web3 architecture, including frontend, backend, APIs, blocks, and peer-to-peer networks.

Embark on a journey through the diverse Web3 ecosystem, from Decentralized Finance (DeFi) to Decentralized Autonomous Organizations (DAOs) and Non-Fungible Tokens (NFTs). Gain practical insights into common Web3 protocols like Web3.js and Ethers.js, empowering you to navigate the complexities of blockchain technology with ease.

Dive deep into the fundamentals of blockchain, understanding Distributed Ledger Technology (DLT), block structure, hashing, and consensus mechanisms. Master the Solidity programming language for smart contracts, exploring their lifecycle, gas fees, and transaction costs.

Equip yourself with the skills to identify and exploit vulnerabilities in Web3 networks and smart contracts. Learn to thwart blockchain network attacks, mitigate smart contract vulnerabilities, and fortify Web3 application security against cross-site scripting (XSS), SQL injection, authentication bypass, and front-end injection attacks.

Explore advanced topics in network and protocol vulnerabilities, including Denial-of-Service (DoS) attacks, gas price vulnerabilities, time-based attacks, replay attacks, consensus algorithm weaknesses, and supply chain attacks. Harness specialized tools and techniques to detect and mitigate threats, ensuring the resilience of blockchain infrastructure in the face of evolving cyber threats.

Whether you're a seasoned cybersecurity professional or a budding blockchain enthusiast, this course provides the essential knowledge and hands-on experience to excel in Web3 penetration testing. Enroll now and embark on your journey to becoming a master of Web3 security!

Who this course is for:

Software Developers and Programmers
Blockchain Enthusiasts
Cybersecurity Professionals
Cryptocurrency Investors and Traders
IT Professionals
Entrepreneurs and Business Owners
Students and Researchers
Compliance Officers and Regulators
Blockchain Project Managers

Web3 And Blockchain Security:Pen Testing & Bug Bounty Part1

What you'll learn

Explore related topics

Course content

Introduction15 lectures • 2hr 5min

Web3 Network Attacks5 lectures • 59min

Smart Contract vulnerabilities3 lectures • 19min

Web3 Application Security4 lectures • 19min

Network and Protocol Vulnerabilities7 lectures • 1hr

Requirements

Description

Who this course is for: