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Santa Claus Bridge

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Solvers 5
misc
2022.12.24. 14:00
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Description
This challenge is from 2022 Christmas CTF.

Santa Claus Bridge

Emit the Flag event!

문제 해결 상품

이 문제를 먼저 해결하신 분은 전체 랭킹과는 별개로 아래 상품을 드립니다.
juno#1337를 디스코드에서 찾아주세요.

1. BHC 뿌링클 1개
2. [호빵](https://www.coupang.com/vp/products/328726537?itemId=1051258056&vendorItemId=5518092518&pickType=COU_PICK&q=%ED%98%B8%EB%B9%B5&itemsCount=36&searchId=ed850199cf944b87b434402a6d856a74&rank=0&isAddedCart=) 2박스
3. 스벅 콜드브루 2잔
4. setuid0 친필 싸인이 담긴 자서전 (언제 배송될지는 모름)

[RPC Usage]

ACCESS_TOKEN: What ever you want. Each access token creates the unique virtual environment.

  • RPC: http://host:port/rpc/{ACCESS_TOKEN}
  • RESET : http://host:port/reset/{ACCESS_TOKEN}
  • GET FLAG: http://host:port/flag/{ACCESS_TOKEN}
    • If you think, you emitted the Flag(address) event on the target contract, then check this api.
  • Chain ID: 1337

[Target Contract]

curl -X GET localhost:800/contract_address/$ACCESS_TOKEN | jq

[Account Information]

  • address: 0x1A422f86D5381E84b01907ddF0E53fa9A6B2a3B3
  • private key: 0x126ed23464f5f3f03352fa6cad4731712fc896162711f9a1e04e7d982a6d7635
  • balance: 10 ETH