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MetaStreet

The MetaStreet v2 Pool is a permissionless NFT-collateralized lending pool with automatic tranching. Pool is responsible for organizing lending capital with different risk and rate profiles from depositors into fixed-duration loans for borrowers.

ETH
Defi
NFT
Lending
Solidity
Maximum Bounty
$50,000
Live Since
02 August 2023
Last Updated
14 November 2024
  • PoC required

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Assets in Scope

Target
Type
Smart Contract - contracts/oracle/SimpleSignedPriceOracle.sol
Added on
6 May 2024
Target
Type
Smart Contract - contracts/oracle/ExternalPriceOracle.sol
Added on
6 May 2024
Target
Type
Smart Contract - contracts/oracle/PriceOracle.sol
Added on
6 May 2024
Target
Type
Smart Contract - contracts/wrappers/KongzBundleCollateralWrapper.sol
Added on
6 May 2024
Target
Type
Smart Contract - contracts/configurations/NoopPool.sol
Added on
8 December 2023
Target
Type
Smart Contract - contracts/configurations/WeightedRateCollectionPool.sol
Added on
8 December 2023
Target
Type
Smart Contract - contracts/interfaces/IPool.sol
Added on
8 December 2023
Target
Type
Smart Contract - contracts/interfaces/ILiquidity.sol
Added on
8 December 2023
Target
Type
Smart Contract - contracts/interfaces/ICollateralWrapper.sol
Added on
8 December 2023
Target
Type
Smart Contract - contracts/interfaces/ICollateralLiquidator.sol
Added on
8 December 2023
Target
Type
Smart Contract - contracts/interfaces/ICollateralLiquidationReceiver.sol
Added on
8 December 2023
Target
Primacy Of Impact
Type
Smart Contract
Added on
8 December 2023

Impacts in Scope

Severity
Critical
Title

Direct theft of any user funds, whether at-rest or in-motion, other than unclaimed yield

Severity
Critical
Title

Direct theft of any user NFTs, whether at-rest or in-motion, other than unclaimed royalties

Severity
Critical
Title

Permanent freezing of funds

Severity
Critical
Title

Permanent freezing of NFTs

Severity
Critical
Title

Creating a loan with a greater principal than allowed by depositor risk limits

Severity
Critical
Title

Creating a bundle-collateralized loan with a greater multiplier in the principal than there are NFTs in the bundle

Severity
High
Title

Theft of unclaimed yield

Severity
High
Title

Permanent freezing of unclaimed yield

Severity
High
Title

Temporary freezing of funds

Severity
High
Title

Temporary freezing NFTs

Severity
High
Title

Creating interest-free loans of typical principal and duration

Severity
High
Title

Denial of service in loan repayment or liquidation

Out of scope

Program's Out of Scope information
  • Impacts involving unsupported tokens (tokens with transfer hooks (e.g. ERC777), fee-on-transfer tokens, blocklistable tokens, and non-standard ERC20 or ERC721 tokens)
  • Impacts involving griefing and/or denial of service in the Collateral Liquidator due to using unsupported tokens
  • Impacts involving the Pool or Collateral Liquidator deployed with misconfigured or malicious parameters
  • Theft of unclaimed yield by speculation on loan repayment or liquidation
  • Freezing of tokens or funds due to unsupported airdrops to assets in escrow
  • Interest-free loans caused by integer truncation due to short duration, small principal, or small interest rate
Default Out of Scope and rules

Smart Contract specific

  • Incorrect data supplied by third party oracles
    • Not to exclude oracle manipulation/flash loan attacks
  • Impacts requiring basic economic and governance attacks (e.g. 51% attack)
  • Lack of liquidity impacts
  • Impacts from Sybil attacks
  • Impacts involving centralization risks

All categories

  • Impacts requiring attacks that the reporter has already exploited themselves, leading to damage
  • Impacts caused by attacks requiring access to leaked keys/credentials
  • Impacts caused by attacks requiring access to privileged addresses (including, but not limited to: governance and strategist contracts) without additional modifications to the privileges attributed
  • Impacts relying on attacks involving the depegging of an external stablecoin where the attacker does not directly cause the depegging due to a bug in code
  • Mentions of secrets, access tokens, API keys, private keys, etc. in Github will be considered out of scope without proof that they are in-use in production
  • Best practice recommendations
  • Feature requests
  • Impacts on test files and configuration files unless stated otherwise in the bug bounty program
  • Impacts requiring phishing or other social engineering attacks against project's employees and/or customers
Severity
Min. - Max.
Critical
$25k -$50k
High
$1k -$25k
Total Assets in Scope
39
Total Impacts in Scope
12