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πŸ“š Smart Contract Security Writeups

Welcome! This site contains four major series of security challenges and tutorials:

  • 🎬 DVD (Damn Vulnerable DeFi)

  • πŸ§ͺ Ethernaut (OpenZeppelin)

  • 🚩 BuildGuidl CTF

  • 🌲 BuildGuidl TechTree

πŸ“‚ Choose a Series

🎬 DVD Series

πŸ§ͺ Ethernaut Series

🚩 BuildGuidl CTF Series

🌲 BuildGuidl TechTree Series

English

  1. ABI-Smuggling
  2. Backdoor
  3. Climber
  4. Compromised
  5. Curvy-Puppet
  6. Free-Rider
  7. Naive-Receiver
  8. Puppet-V2
  9. Puppet-V3
  10. Puppet
  11. Selfie
  12. Shards
  13. Side-Entrance
  14. The-Rewarder
  15. Truster
  16. Unstoppable
  17. Wallet-Mining
  18. Withdrawal

Chinese

  1. ABI-Smuggling
  2. Backdoor
  3. Climber
  4. Compromised
  5. Curvy-Puppet
  6. Free-Rider
  7. Naive-Receiver
  8. Puppet-V2
  9. Puppet-V3
  10. Puppet
  11. Selfie
  12. Shards
  13. Side-Entrance
  14. The-Rewarder
  15. Truster
  16. Unstoppable
  17. Wallet-Mining
  18. Withdrawal

Japanese

  1. ABI-Smuggling
  2. Backdoor
  3. Climber
  4. Compromised
  5. Curvy-Puppet
  6. Free-Rider
  7. Naive-Receiver
  8. Puppet-V2
  9. Puppet-V3
  10. Puppet
  11. Selfie
  12. Shards
  13. Side-Entrance
  14. The-Rewarder
  15. Truster
  16. Unstoppable
  17. Wallet-Mining
  18. Withdrawal

English

  1. Alien-Codex
  2. Bet-House
  3. Cashback
  4. Coin-Flip
  5. Delegation
  6. Denial
  7. Dex-Two
  8. Dex
  9. DoubleEntryPoint
  10. Elevator
  11. Elliptic-Token
  12. Fallback
  13. Fallout
  14. Force
  15. Forger
  16. Gatekeeper-One
  17. Gatekeeper-Three
  18. Gatekeeper-Two
  19. Good-Samaritan
  20. Hello-Ethernaut
  21. HigherOrder
  22. Impersonator-Two
  23. Impersonator
  24. King
  25. Magic-Animal-Carousel
  26. MagicNumber
  27. Motorbike
  28. Naught-Coin
  29. NotOptimisticPortal
  30. Preservation
  31. Privacy
  32. Puzzle-Wallet
  33. Re-entrancy
  34. Recovery
  35. Shop
  36. Stake
  37. Switch
  38. Telephone
  39. Token
  40. UniqueNFT
  41. Vault

Chinese

  1. Alien-Codex
  2. Bet-House
  3. Cashback
  4. Coin-Flip
  5. Delegation
  6. Denial
  7. Dex-Two
  8. Dex
  9. DoubleEntryPoint
  10. Elevator
  11. Elliptic-Token
  12. Fallback
  13. Fallout
  14. Force
  15. Forger
  16. Gatekeeper-One
  17. Gatekeeper-Three
  18. Gatekeeper-Two
  19. Good-Samaritan
  20. Hello-Ethernaut
  21. HigherOrder
  22. Impersonator-Two
  23. Impersonator
  24. King
  25. Magic-Animal-Carousel
  26. MagicNumber
  27. Motorbike
  28. Naught-Coin
  29. NotOptimisticPortal
  30. Preservation
  31. Privacy
  32. Puzzle-Wallet
  33. Re-entrancy
  34. Recovery
  35. Shop
  36. Stake
  37. Switch
  38. Telephone
  39. Token
  40. UniqueNFT
  41. Vault

Japanese

  1. Alien-Codex
  2. Bet-House
  3. Cashback
  4. Coin-Flip
  5. Delegation
  6. Denial
  7. Dex-Two
  8. Dex
  9. DoubleEntryPoint
  10. Elevator
  11. Elliptic-Token
  12. Fallback
  13. Fallout
  14. Force
  15. Forger
  16. Gatekeeper-One
  17. Gatekeeper-Three
  18. Gatekeeper-Two
  19. Good-Samaritan
  20. Hello-Ethernaut
  21. HigherOrder
  22. Impersonator-Two
  23. Impersonator
  24. King
  25. Magic-Animal-Carousel
  26. MagicNumber
  27. Motorbike
  28. Naught-Coin
  29. NotOptimisticPortal
  30. Preservation
  31. Privacy
  32. Puzzle-Wallet
  33. Re-entrancy
  34. Recovery
  35. Shop
  36. Stake
  37. Switch
  38. Telephone
  39. Token
  40. UniqueNFT
  41. Vault

English

  1. ctf-s1c1
  2. ctf-s1c10
  3. ctf-s1c11
  4. ctf-s1c12
  5. ctf-s1c2
  6. ctf-s1c3
  7. ctf-s1c4
  8. ctf-s1c5
  9. ctf-s1c6
  10. ctf-s1c7
  11. ctf-s1c8
  12. ctf-s1c9
  13. ctf-s2c1
  14. ctf-s2c10
  15. ctf-s2c11
  16. ctf-s2c12
  17. ctf-s2c2
  18. ctf-s2c3
  19. ctf-s2c4
  20. ctf-s2c5
  21. ctf-s2c6
  22. ctf-s2c7
  23. ctf-s2c8
  24. ctf-s2c9

Chinese

  1. ctf-s1c1
  2. ctf-s1c10
  3. ctf-s1c11
  4. ctf-s1c12
  5. ctf-s1c2
  6. ctf-s1c3
  7. ctf-s1c4
  8. ctf-s1c5
  9. ctf-s1c6
  10. ctf-s1c7
  11. ctf-s1c8
  12. ctf-s1c9
  13. ctf-s2c1
  14. ctf-s2c10
  15. ctf-s2c11
  16. ctf-s2c12
  17. ctf-s2c2
  18. ctf-s2c3
  19. ctf-s2c4
  20. ctf-s2c5
  21. ctf-s2c6
  22. ctf-s2c7
  23. ctf-s2c8
  24. ctf-s2c9

Japanese

  1. ctf-s1c1
  2. ctf-s1c10
  3. ctf-s1c11
  4. ctf-s1c12
  5. ctf-s1c2
  6. ctf-s1c3
  7. ctf-s1c4
  8. ctf-s1c5
  9. ctf-s1c6
  10. ctf-s1c7
  11. ctf-s1c8
  12. ctf-s1c9
  13. ctf-s2c1
  14. ctf-s2c10
  15. ctf-s2c11
  16. ctf-s2c12
  17. ctf-s2c2
  18. ctf-s2c3
  19. ctf-s2c4
  20. ctf-s2c5
  21. ctf-s2c6
  22. ctf-s2c7
  23. ctf-s2c8
  24. ctf-s2c9

English

  1. 01-token-voting
  2. 02-multisend
  3. 03-eth-streaming
  4. 04-custom-stream
  5. 05-token-wrapper-weth
  6. 06-rebasing-token
  7. 07-dead-mans-switch
  8. 08-dao-governance
  9. 09-moloch-rage-quit
  10. 10-social-recovery
  11. 11-reentrancy
  12. 12-gated-nft
  13. 13-name-system
  14. 14-erc1155-game-items
  15. 15-eth-cli
  16. 16-subgraphs
  17. 17-indexer
  18. 18-token-curated-registry
  19. 19-svg-nfts
  20. 20-oz-governor-dao
  21. 21-create2
  22. 22-gas-golf
  23. 23-sign-verify
  24. 24-merkle-nfts
  25. 25-nft-price-curve
  26. 26-nft-permissions
  27. 27-atomic-swaps
  28. 28-social-recovery
  29. 29-run-node
  30. 30-ipfs-node
  31. 31-offchain-voting
  32. 32-lending-app
  33. 33-options
  34. 34-shorting
  35. 35-order-book
  36. 36-prediction-market
  37. 37-proxy-contracts
  38. 38-multisig-wallet
  39. 39-mev-bot
  40. 40-smart-wallets
  41. 41-privacy-mixer
  42. 42-contract-factory

Chinese

  1. 01-token-voting
  2. 02-multisend
  3. 03-eth-streaming
  4. 04-custom-stream
  5. 05-token-wrapper-weth
  6. 06-rebasing-token
  7. 07-dead-mans-switch
  8. 08-dao-governance
  9. 09-moloch-rage-quit
  10. 10-social-recovery
  11. 11-reentrancy
  12. 12-gated-nft
  13. 13-name-system
  14. 14-erc1155-game-items
  15. 15-eth-cli
  16. 16-subgraphs
  17. 17-indexer
  18. 18-token-curated-registry
  19. 19-svg-nfts
  20. 20-oz-governor-dao
  21. 21-create2
  22. 22-gas-golf
  23. 23-sign-verify
  24. 24-merkle-nfts
  25. 25-nft-price-curve
  26. 26-nft-permissions
  27. 27-atomic-swaps
  28. 28-social-recovery
  29. 29-run-node
  30. 30-ipfs-node
  31. 31-offchain-voting
  32. 32-lending-app
  33. 33-options
  34. 34-shorting
  35. 35-order-book
  36. 36-prediction-market
  37. 37-proxy-contracts
  38. 38-multisig-wallet
  39. 39-mev-bot
  40. 40-smart-wallets
  41. 41-privacy-mixer
  42. 42-contract-factory

Japanese

  1. 01-token-voting
  2. 02-multisend
  3. 03-eth-streaming
  4. 04-custom-stream
  5. 05-token-wrapper-weth
  6. 06-rebasing-token
  7. 07-dead-mans-switch
  8. 08-dao-governance
  9. 09-moloch-rage-quit
  10. 10-social-recovery
  11. 11-reentrancy
  12. 12-gated-nft
  13. 13-name-system
  14. 14-erc1155-game-items
  15. 15-eth-cli
  16. 16-subgraphs
  17. 17-indexer
  18. 18-token-curated-registry
  19. 19-svg-nfts
  20. 20-oz-governor-dao
  21. 21-create2
  22. 22-gas-golf
  23. 23-sign-verify
  24. 24-merkle-nfts
  25. 25-nft-price-curve
  26. 26-nft-permissions
  27. 27-atomic-swaps
  28. 28-social-recovery
  29. 29-run-node
  30. 30-ipfs-node
  31. 31-offchain-voting
  32. 32-lending-app
  33. 33-options
  34. 34-shorting
  35. 35-order-book
  36. 36-prediction-market
  37. 37-proxy-contracts
  38. 38-multisig-wallet
  39. 39-mev-bot
  40. 40-smart-wallets
  41. 41-privacy-mixer
  42. 42-contract-factory

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