Yearn Finance
Yearn Finance is a suite of products in Decentralized Finance (DeFi) that provides lending aggregation and yield generation on the Ethereum blockchain. The protocol is maintained by various independent developers and is governed by YFI holders. Their products include:
PoC required
Rewards by Threat Level
Rewards for Smart Contract vulnerabilities are distributed according to the impact of the vulnerability based on the Immunefi Vulnerability Severity Classification System V2.2. This is a simplified 5-level scale, with separate scales for websites/apps and smart contracts/blockchains, encompassing everything from consequence of exploitation to privilege required to likelihood of a successful exploit.
To determine the final reward amount, the likelihood to have a meaningful impact on availability, integrity, and/or loss of funds is considered. The final decision on the payout amount will be determined by the Yearn Finance team at its discretion.
Payouts are handled by the Yearn Finance team directly and are denominated in USD. Payouts can be made in USDC, DAI, YFI, or their Yearn Vault counterparts.
Program Overview
Yearn Finance is a suite of products in Decentralized Finance (DeFi) that provides lending aggregation and yield generation on the Ethereum blockchain. The protocol is maintained by various independent developers and is governed by YFI holders. Their products include:
Vaults Capital pools that automatically generate yield based on opportunities present in the market. Vaults benefit users by socializing gas costs, automating the yield generation and rebalancing process, and automatically shifting capital as opportunities arise. End users also do not need to have a proficient knowledge of the underlying protocols involved or DeFi, thus the Vaults represent a passive-investing strategy.
Further resources regarding Yearn Finance can be found on their website, https://yearn.finance/ and documentation.
The bug bounty program is focused around its smart contracts and is mostly concerned with the prevention of the loss of user funds.
KYC not required
No KYC information is required for payout processing.
Prohibited Activities
- Any testing on mainnet or public testnet deployed code; all testing should be done on local-forks of either public testnet or mainnet
- Any testing with pricing oracles or third-party smart contracts
- Attempting phishing or other social engineering attacks against our employees and/or customers
- Any testing with third-party systems and applications (e.g. browser extensions) as well as websites (e.g. SSO providers, advertising networks)
- Any denial of service attacks that are executed against project assets
- Automated testing of services that generates significant amounts of traffic
- Public disclosure of an unpatched vulnerability in an embargoed bounty
- Any other actions prohibited by the Immunefi Rules
Feasibility Limitations
The project may be receiving reports that are valid (the bug and attack vector are real) and cite assets and impacts that are in scope, but there may be obstacles or barriers to executing the attack in the real world. In other words, there is a question about how feasible the attack really is. Conversely, there may also be mitigation measures that projects can take to prevent the impact of the bug, which are not feasible or would require unconventional action and hence, should not be used as reasons for downgrading a bug's severity. Therefore, Immunefi has developed a set of feasibility limitation standards which by default states what security researchers, as well as projects, can or cannot cite when reviewing a bug report.