06 January 2021
Live since
No
KYC required
$50,000
Maximum bounty

Program Overview

Released in May 2020, mStable is a protocol that unites stablecoins, lending and swapping into one robust and easy to use standard. Three major problems confront stablecoin users: significant fragmentation in same-peg assets; lack of native yield when it is being increasingly demanded by users; lack of insurance against permanent capital loss. mStable’s products (SWAP, SAVE and EARN) are built specifically to address these pain-points.

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, encompassing everything from consequence of exploitation to privilege required to likelihood of a successful exploit.

Payouts are handled by mStable directly and are denominated in USD. Payouts are made in mUSD.

Smart Contract

Critical
Level
USD $50,000
Payout
High
Level
USD $8,000
Payout
Medium
Level
USD $4,000
Payout
Low
Level
USD $1,250
Payout
Informational
Level
USD $0
Payout

Assets in scope

Any Proxy contracts listed in the Assets in Scope table also include the currently active logic contracts, and any external or internal libraries that are used in these.

Impacts in scope

Only the following impacts are accepted within this bug bounty program. All other impacts are not considered as in-scope, even if they affect something in the assets in scope table.

Smart Contract

  • Any governance voting result manipulation
    Critical
    Impact
  • Direct theft of any user funds, whether at-rest or in-motion, other than unclaimed yield
    Critical
    Impact
  • Permanent freezing of funds
    Critical
    Impact
  • Theft of unclaimed yield
    High
    Impact
  • Permanent freezing of unclaimed yield
    High
    Impact
  • Temporary freezing of funds
    High
    Impact
  • Smart contract unable to operate due to lack of token funds
    Medium
    Impact
  • Block stuffing for profit
    Medium
    Impact
  • Griefing (e.g. no profit motive for an attacker, but damage to the users or the protocol)
    Medium
    Impact
  • Theft of gas
    Medium
    Impact
  • Unbounded gas consumption
    Medium
    Impact
  • Contract fails to deliver promised returns, but doesn't lose value
    Low
    Impact

Out of Scope & Rules

The following Immunefi Commonly Excluded Vulnerabilities are excluded from the mStable bug bounty program.

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