Aurora Labs have created the Aurora Ecosystem which mainly consists of two components: Rainbow Bridge and Aurora Engine. Rainbow Bridge is a fully trustless and decentralized bridge that interconnects Ethereum and NEAR ecosystems. Aurora Engine is an EVM built on the NEAR Protocol, delivering a turn-key solution for developers to operate their apps on an Ethereum-compatible, high-throughput, scalable and future-safe platform, with low transaction costs for their users.
For more information about Aurora please visit https://aurora.dev/.
This bug bounty program is focused on Aurora's smart contracts and web application. It targets the prevention of:
- Loss of assets held in their Rainbow Bridge
- Loss of any user funds, whether at-rest or in-motion
- Permanent freezing of funds
- Loss of governance funds
- Inability to call smart contract
- Thefts and freezing of unclaimed yield of any amount
Rewards by Threat Level
Rewards are distributed according to the impact of the vulnerability based on the Immunefi Vulnerability Severity Classification System V2.1. This is a simplified 5-level scale, with separate scales for websites/apps and smart contracts, focusing on the impact of the vulnerability reported.
All web/app bug reports must come with a PoC with an end-effect impacting an asset-in-scope in order to be considered for a reward. Explanations and statements are not accepted as PoC and code is required.
Critical smart contract vulnerabilities are further capped at 10% of economic damage, which primarily takes into consideration the funds at risk. In cases of repeatable attacks, only the first attack is considered unless the smart contract cannot be upgraded or paused. However, there is a minimum reward of USD 150 000 for valid Critical smart contract bug reports.
High smart contract vulnerabilities will be further capped at up to 100% of the funds affected. In the event of temporary freezing, the reward doubles for every additional 5 blocks that the funds could be temporarily frozen, rounded down to the nearest multiple of 5, up to the hard cap of USD 100 000. This is implemented in order to account for the increased relative impact based on the duration of the freezing of funds.
All calculations of the amount of funds at risk are done based on the time the bug report is submitted.
Critical website and application bug reports will be rewarded with USD 100 000 only if the impact leads to a direct loss in funds. All other impacts that would be classified as Critical would be rewarded no more than USD 50 000.
Payouts are handled by an independent financial outsourcing team appointed by DAO resolutions from the Bug Bounty budget. All payments are made on the basis of resolution, provided by the Security department to the independent financial outsourcing team.
Once a quarter a list of executed transfers with description is submitted to the Board of Directors of Aurora DAO. Board of Directors approve and issue Resolution on distributed Bug Bounty funds.
All payments are done in AURORA tokens. All payments with an amount higher than $100.000 USD (excluded) will be paid in locked tokens which will be released linearly over a period of one year.
Aurora DAO reserves the right to perform research (KYC), by itself or with involvement of third parties, on the receiver of the bounty and/or target wallet and/or make requests relevant to this research.
- Up to USD $1,000,000
- Up to USD $100,000
- USD $5,000
- USD $1,000
Websites and Applications
- Up to USD $100,000
- USD $5,000
- USD $2,000
- USD $1,000
Assets in scope
- Smart Contract - NearBridgeType
- Smart Contract - NearProverType
- Smart Contract - EthClient Explorer LinkType
- Smart Contract - EthClient GitHub LinkType
- Smart Contract - EthProved Explorer LinkType
- Smart Contract - EthProved GitHub LinkType
- Smart Contract - Ed25519Type
- Smart Contract - Token Factory Explorer LinkType
- Smart Contract - NearTokenConnector, Bridged TokensType
- Smart Contract - ERC20LockerType
- Smart Contract - EthCustodian (on Ethereum)Type
- Smart Contract - eNearType
- Smart Contract - NearTokenConnector Explorer LinkType
- Smart Contract - NearTokenConnector GitHub LinkType
- Smart Contract - AuroraType
- Smart Contract - Engine MasterType
- Smart Contract - Engine DevType
- Smart Contract - Engine Master PrecompilesType
- Smart Contract - EngineDevPrecompilesType
- Smart Contract - Engine Master SDKType
- Smart Contract - Engine Dev SDKType
- Smart Contract - Engine Master TransactionsType
- Smart Contract - Engine Dev TransactionsType
- Smart Contract - Master Engine TypesType
- Smart Contract - Dev Engine TypesType
- Smart Contract - Master Eth ContractsType
- Smart Contract - Dev Eth ContractsType
- Smart Contract - Sputnik EVMType
- Websites and Applications - Main Web AppType
All smart contracts of Aurora can be found at https://github.com/aurora-is-near. However, only those in the Assets in Scope table are considered as in-scope of the bug bounty program. The Aurora team aims to communicate any changes to the Assets in Scope table with Immunefi as soon as possible. However, due to potential delays in updating the bug bounty program, the listed asset must also appear on https://github.com/aurora-is-near/aurora-security-public/blob/main/ABBP-AssetsInScope.md at the time of escalation to the Aurora team in order to be considered valid.
If an impact can be caused to any other asset managed by Aurora that isn’t on this table but for which the impact is in the Impacts in Scope section below, you are encouraged to submit it for the consideration by the project. This only applies to Critical impacts.
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.
- Any governance voting result manipulationCriticalImpact
- Direct theft of any user funds, whether at-rest or in-motion, other than unclaimed yieldCriticalImpact
- Permanent freezing of fundsCriticalImpact
- Theft of unclaimed yieldHighImpact
- Permanent freezing of unclaimed yieldHighImpact
- Temporary freezing of fundsHighImpact
- Smart contract unable to operate due to lack of fundsMediumImpact
- Block stuffing for profitMediumImpact
- Griefing (e.g. no profit motive for an attacker, but damage to the users or the protocol)MediumImpact
- Theft of gasMediumImpact
- Unbounded gas consumptionMediumImpact
- Smart contract fails to deliver promised returns, but doesn’t lose valueLowImpact
Websites and Applications
- Execute arbitrary system commandsCriticalImpact
- 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)CriticalImpact
- Taking Down the application/websiteCriticalImpact
- 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.CriticalImpact
- Subdomain takeover with already-connected wallet interactionCriticalImpact
- Direct theft of user fundsCriticalImpact
- Malicious interactions with an already-connected wallet such as modifying transaction arguments or parameters, substituting contract addresses, submitting malicious transactionsCriticalImpact
- Changing sensitive details of other users (including modifying browser local storage) without already-connected wallet interaction and with up to one click of user interaction, such as email or password of the victim, etc.HighImpact
- Improperly disclosing confidential user information such as email address, phone number, physical address, etc.HighImpact
- Subdomain takeover without already-connected wallet interactionHighImpact
- Changing non-sensitive details of other users (including modifying browser local storage) without already-connected wallet interaction and with up to one click of user interaction, such as changing the first/last name of user, or en/disabling notificationMediumImpact
- Redirecting users to malicious websites (Open Redirect)MediumImpact
- Changing details of other users (including modifying browser local storage) without already-connected wallet interaction and with significant user interaction such as iframing leading to modifying the backend/browser stateLowImpact
- Any impact involving a publicly released CVE without a working PoCLowImpact
- Taking over broken or expired outgoing links such as social media handles, etc.LowImpact
- Temporarily disabling user to access target site, such as locking up the victim from login, cookie bombing, etcLowImpact
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)
- Bugs in dependencies (ex. NEAR Protocol blockchain)
- Vulnerabilities (resolved or not) on the Ethereum network (and any other fork of these)
- Attacks requiring MITM or physical access to a user's device.
- Scanner-generated reports and "Advisory" or "Informational" reports that do not include any Aurora-specific testing or context are ineligible for rewards.
- Public Zero-day vulnerabilities that have had an official patch for less than 1 month will be awarded on a case by case basis.
Smart Contracts and Blockchain
- 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
- Centralization risks
Websites and Apps
- Theoretical vulnerabilities without any proof or demonstration.
- Attacks requiring physical access to the victim device.
- Attacks requiring access to the local network of the victim.
- Reflected plain text injection ex: url parameters, path, etc.
- This does not exclude persistent plain text injection
- Captcha bypass using OCR without impact demonstration.
- CSRF with no state modifying security impact (ex: logout CSRF)
- 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.
- Vulnerabilities used only to enumerate or confirm the existence of users or tenants
- Vulnerabilities requiring un-prompted, in-app user actions that are not part of the normal app workflows
- Lack of SSL/TLS best practices
- DDoS vulnerabilities
- Feature requests
- Issues related to the frontend without concrete impact and PoC.
- Best practices issues without concrete impact and PoC
- Vulnerabilities primarily caused by browser/plugin defects
- Leakage of non sensitive api keys ex: etherscan, Infura, Alchemy, etc.
- Any vulnerability exploit requiring browser bugs for exploitation. ex: CSP bypass
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
- 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