LEVEL 4

Flicker

web3
  • Description
  • Writeups 1
  • Difficulty votes 4
  • Questions
  • Recent Solvers 19
  • Comments
This challenge is from Dreamhack Invitational 2025 .

Description

Description

Opportunities flicker like light, so you should seize them well.

  • 2025-04-09: Vault.withdraw함수의 IERC1155(token).safeTransferFrom(msg.sender, token, id, value, ""); 부분이 IERC1155(token).safeTransferFrom(address(this), msg.sender, id, value, "");로 수정되었습니다. (문제 풀이에는 영향이 없습니다.)

About challenge environment

  • Visit /start to generate a random token. It will redirect you to /{token}. Note that you will not be able to get this token information again.
  • Visit /{token}/info to get information about the challenge environment.
    • setup_contract_address: The address of the deployed challenge contract.
    • user_private_key: The private key of the user account that you can use.
    • user_address: The address of the user account.
  • /{token}/rpc is the RPC address of the testnet node.
  • The conditions to solve the challenge are written on deploy/verifier.py of the attachment.
  • If you solved the challenge, visit /{token}/flag to get the flag.
  • If you get stuck and need to restart, visit /{token}/reset.

Difficulty votes 4

Questions 0

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LEVEL 4

Flicker

web3

Author

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Dreamhack
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First Blood!

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Pencake
Christmas CTF Participant
Solved in just 10 hours!

Recent Solvers 19

Muang
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chrono
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xiaxia
Wargame: 1
s1s1s1s1s1
Web3 Novice
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y0ungminhada
Wargame: 1
카이리재명
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moooji
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wiimdy
World Tree
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Kabi
Cyborg

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