Bug Bounty Program by Impossible & Immunefi

Impossible Finance collaborates with Immunefi on the Impossible Bug Bounty Program.

The bug bounty program is focused around smart contracts and is mostly concerned with the loss of user funds and other smart contract risks.

Rewards by threat level

Rewards are distributed according to the impact of the vulnerability based on the Immunefi Vulnerability Severity Classification System. This is a simplified 5-level scale, with separate scales for websites/apps and smart contracts/blockchains. It encompasses everything from consequence of exploitation, to privilege required, to likelihood of a successful exploit.

Smart Contracts and Blockchain
Critical — — USD 50 000–10% of Funds at Risk (max est. USD 94 000)
High — — USD 20 000
Medium — — USD 5 000
Low — — USD 1 000

Smart Contract critical payouts have a maximum total payout of 10% of the funds that are directly potentially affected with a payout floor of USD50,000. The estimated maximum payout is based on the Total Value Locked (TVL) in the Impossible Finance but is explicitly only an estimate and only the actual active amount at the time of reporting will be considered.

Payouts are handled by the Impossible Finance team directly and are denominated in USD. However, payouts are done in BUSD. For Critical payouts, up to 80% of the reward may be in the project token, IF.

Assets in Scope

Smart Contracts:
https://github.com/ImpossibleFinance/impossible-swap-core
https://github.com/ImpossibleFinance/impossible-staking

The ImpossibleRouter01.sol smart contract is considered as out-of-scope of the bug bounty program.

Prioritized Smart Contract/Blockchain vulnerabilities

They are especially interested in receiving and rewarding vulnerabilities of the following types:

  • Re-entrancy
  • Logic errors
  • including user authentication errors
  • Solidity/EVM details not considered
  • including integer over-/under-flow
  • including unhandled exceptions
  • Trusting trust/dependency vulnerabilities
  • including composability vulnerabilities
  • Oracle failure/manipulation
  • Novel governance attacks
  • Economic/financial attacks
  • including flash loan attacks
  • Congestion and scalability
  • including running out of gas
  • including block stuffing
  • including susceptibility to frontrunning
  • Consensus failures
  • Cryptography problems
  • Signature malleability
  • Susceptibility to replay attacks
  • Weak randomness
  • Weak encryption
  • Susceptibility to block timestamp manipulation
  • Missing access controls / unprotected internal or debugging interfaces

Out of Scope & Rules

The following vulnerabilities are excluded from the rewards for this bug bounty program:

  • Attacks that the reporter has already exploited themselves, leading to damage
  • Attacks requiring access to leaked keys/credentials
  • Attacks requiring access to privileged addresses (governance, strategist)
  • Incorrect data supplied by third party oracles
  • Not to exclude oracle manipulation/flash loan attacks
  • Basic economic governance attacks (e.g. 51% attack)
  • Lack of liquidity
  • Best practice critiques
  • Sybil attacks

The following activities are prohibited by bug bounty program:

  • Any testing with mainnet or public testnet contracts; all testing should be done on private testnets
  • 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
  • Automated testing of services that generates significant amounts of traffic
  • Public disclosure of an unpatched vulnerability in an embargoed bounty

What is Impossible Finance?

Impossible Finance uses decentralised financial protocols to give everyone the same access to financial products, which were previously only available to institutions and select individuals.

What is Immunefi?

Immunefi is the premier bug bounty platform

Launched on December 9, 2020, focused on blockchain and smart contract security. They provide bug bounty hosting, consultation, bug triaging, and program management services to blockchain and smart contract projects.

Bug bounty programs are open invitations to security researchers to discover and disclose potentially vulnerabilities in projects’ smart contracts and applications, thereby protecting projects and their users. For their good work, security researchers receive a reward based on the severity of the vulnerability, as determined by the project affected.

📰 INFO:

https://medium.com/impossiblefinance/the-impossible-bug-bounty-program-bfea1abf8ae3

Bug Bounty Program by Impossible & Immunefi
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