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hats-finance / Fenix--0x9d7765a7ebd5b6322a30797a44a5428531970d3d

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tokenId is not verified before deposit is done #63

Open hats-bug-reporter[bot] opened 4 months ago

hats-bug-reporter[bot] commented 4 months ago

Github username: @agbanusi Twitter username: -- Submission hash (on-chain): 0xb22d944d6c8eea7d122a50327642c5950e81a09c2a1b9f14c501f537e6a5bafa Severity: medium

Description: Description\ On deposit in the SingelTokenVirtualRewarderUpgradeable.sol file, the tokenId is not verified which can lead to balance of non-existent token be increased.

Attack Scenario\ The attack path is from the ManagedNFTManagerUpgradeable.sol:onAttachToManagedNFT to CompoundVeFNXManagedNFTStrategyUpgradeable.sol:onAttach to SingelTokenVirtualRewarderUpgradeable.sol:deposit Attachments

  1. Proof of Concept (PoC) File

https://github.com/hats-finance/Fenix--0x9d7765a7ebd5b6322a30797a44a5428531970d3d/blob/353c8e8e24454336e805e5c0e11e4e9ae1491d03/contracts/nest/ManagedNFTManagerUpgradeable.sol#L176

https://github.com/hats-finance/Fenix--0x9d7765a7ebd5b6322a30797a44a5428531970d3d/blob/353c8e8e24454336e805e5c0e11e4e9ae1491d03/contracts/nest/CompoundVeFNXManagedNFTStrategyUpgradeable.sol#L79

https://github.com/hats-finance/Fenix--0x9d7765a7ebd5b6322a30797a44a5428531970d3d/blob/353c8e8e24454336e805e5c0e11e4e9ae1491d03/contracts/nest/SingelTokenVirtualRewarderUpgradeable.sol#L121

  1. Revised Code File (Optional)
0xmahdirostami commented 4 months ago

Actually there is a check for the managed NFT manager, though it lacks of such a check for the NFT owner itself