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Sky

Sky, formerly known as MakerDAO, is one of the first DeFi protocols in the crypto space. MakerDAO introduced the first crypto-backed stablecoin called Dai (DAI), which is set at a value of 1:1 with the United States Dollar.

ETH
Defi
CDP
Lending
Staking
Solidity
Maximum Bounty
$10,000,000
Live Since
10 February 2022
Last Updated
02 October 2024
  • Triaged by Immunefi

  • PoC required

Select the category you'd like to explore

Assets in Scope

Target
Type
Smart Contract - UniV2PoolMigratorInit
Added on
24 September 2024
Target
Type
Smart Contract - SplitterMom
Added on
24 September 2024
Target
Type
Smart Contract - Splitter
Added on
24 September 2024
Target
Type
Smart Contract - Oracle Wrapper
Added on
24 September 2024
Target
Type
Smart Contract - FlapperUniV2SwapOnly
Added on
24 September 2024
Target
Type
Smart Contract - FlapperUniV2
Added on
24 September 2024
Target
Type
Smart Contract - Vote Delegate Factory
Added on
24 September 2024
Target
Type
Smart Contract - Vote Delegate
Added on
24 September 2024
Target
Type
Smart Contract - Lockstake Clipper
Added on
24 September 2024
Target
Type
Smart Contract - Lockstake Engine
Added on
24 September 2024
Target
Type
Smart Contract - LSMKR ERC20
Added on
24 September 2024
Target
Type
Smart Contract - sUSDS
Added on
24 September 2024

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.

Severity
Critical
Title
Manipulation of governance voting result deviating from voted outcome and resulting in a direct change from intended effect of original results
Severity
Critical
Title
Direct theft of any user funds (with value > $250,000), whether at-rest or in-motion, other than unclaimed yield
Severity
Critical
Title
Permanent freezing of user funds (with value > $250,000)
Severity
Critical
Title
Protocol Insolvency
Severity
Critical
Title
Taking Down the application/website
Severity
Critical
Title
Direct theft of user funds
Severity
Critical
Title
Execute arbitrary system commands
Severity
Critical
Title
Retrieve sensitive data/files from a running server such as /etc/shadow, database passwords, and blockchain keys(this does not include non-sensitive environment variables, open source code, or usernames)
Severity
Critical
Title
Taking state-modifying authenticated actions (with or without blockchain state interaction) on behalf of other users without any interaction by that user, such as, changing registration information, commenting, voting, making trades, withdrawals, etc.
Severity
Critical
Title
Subdomain takeover with already-connected wallet interaction
Severity
Critical
Title
Malicious interactions with an already-connected wallet such as modifying transaction arguments or parameters, substituting contract addresses, submitting malicious transactions
Severity
High
Title
Theft of unclaimed yield

Out of scope

Program's Out of Scope information

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

  • 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 (governance, strategist) except in such cases where the contracts are intended to have no privileged access to functions that make the attack possible
  • 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
  • All 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

Smart Contracts

  • 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)
  • Impacts that rely on the governance approval of a malicious spell or governance crafting malicious code
  • Impacts involving the deprecated Emergency Shutdown Module
  • Lack of liquidity impacts
  • Impacts from Sybil attacks
  • Impacts involving centralization risks

Websites and Apps

  • Theoretical impacts without any proof or demonstration
  • Impacts involving attacks requiring physical access to the victim device
  • Impacts involving attacks requiring access to the local network of the victim
  • Reflected plain text injection (e.g. url parameters, path, etc.)
  • This does not exclude reflected HTML injection with or without JavaScript
  • This does not exclude persistent plain text injection
  • Any impacts involving self-XSS
  • Captcha bypass using OCR without impact demonstration
  • CSRF with no state modifying security impact (e.g. logout CSRF)
  • Impacts related to missing HTTP Security Headers (such as X-FRAME-OPTIONS) or cookie security flags (such as “httponly”) without demonstration of impact
  • Server-side non-confidential information disclosure, such as IPs, server names, and most stack traces
  • Impacts causing only the enumeration or confirmation of the existence of users or tenants
  • Impacts caused by vulnerabilities requiring un-prompted, in-app user actions that are not part of the normal app workflows
  • Lack of SSL/TLS best practices
  • Impacts that only require DDoS
  • UX and UI impacts that do not materially disrupt use of the platform
  • Impacts primarily caused by browser/plugin defects
  • Leakage of non sensitive API keys (e.g. Etherscan, Infura, Alchemy, Github tokens, etc.)
  • Any vulnerability exploit requiring browser bugs for exploitation (e.g. CSP bypass)
  • Misconfigured SPF/DMARC records
  • Missing HTTP Headers without demonstrated impact
  • Automated scanner reports without demonstrated impact
  • UI/UX best practice recommendations
  • Non-future-proof NFT rendering

The following activities are prohibited by this bug bounty program:

  • Any testing with mainnet or public testnet contracts; all testing should be done on private testnets
  • 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