Decentraland

Decentraland is a decentralized virtual social platform powered by the Ethereum blockchain. Within the Decentraland platform, users can create, experience, and monetize content and applications. Decentraland is built, governed, and owned by its users. Through the decentralized autonomous organization (DAO) users can submit proposals for owners of MANA and LAND to vote on.

For more information about Decentraland, please visit https://decentraland.org/.

Rewards 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, smart contracts, and blockchains/DLTs, 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. All Smart Contract bug reports require a PoC and a suggestion for a fix to be eligible for a reward. Explanations and statements are not accepted as PoC and code is required.

High smart contract vulnerabilities to be calculated as 0.1% of the economic damage and capped at USD 500,000, primarily taking into consideration funds at risk, but also PR and branding aspects, at the discretion of the team. However, there is a minimum reward of USD 20,000.

All other rewards for the bug bounty program are scaled based on an internally established team criteria, taking into account the exploitability of the bug, the impact it causes, and the likelihood of the vulnerability presenting itself, which is especially factored in with bug reports requiring multiple conditions to be met that are currently not in-place. However, there is a minimum reward of USD 1 000 for each severity level, rewards will be provided at the determined fair value by the team depending on these conditions, assuming that the bug report is in-scope of the bug bounty program.

Decentraland has combined Critical and High Smart Contract impacts together, please refer to the High Smart Contract rewards and impacts respectively.

The following vulnerabilities are not eligible for a reward:

• Estate: The getFingerprint function can run out of gas for Estates bigger than 4000 LANDs.
• Collections: Missing the ERC165 interface registration.
• All vulnerabilities marked in https://github.com/decentraland/smart-contract-audits

Decentraland requires KYC to be done for all bug bounty hunters submitting a report and wanting a reward. The information needed are Name, Mailing Address and any ID. The collection of this information will be done by the Decentraland team.

Payouts are handled by the Decentraland team directly and are denominated in USD. However, payouts are done in MANA and USDT, with a minimum of 20% to be done in USDT.

Smart Contract

Websites and Applications

All smart contracts of Decentraland can be found at https://github.com/decentraland. However, only those in the Assets in Scope table are considered as in-scope of the bug bounty program.

If an impact can be caused to any other asset managed by Decentraland 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.

Bug reports from compensated team members of any Decentraland core units will not be eligible for a reward. Employees and team members of third-party suppliers to core units that operate in a technical capacity and have assets covered in this bug bounty program will also not be eligible for a reward. All team members of the audit companies Decentraland works with, and its third-party suppliers, including Immunefi itself and its subsidiaries, are not eligible for a reward.

Bug reports from team members and third-party suppliers of businesses and organizations that are not a Decentraland Core Unit but have assets considered as critical infrastructure covered under the bug bounty program are also not eligible for the bug bounty program.

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)

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
• Frontrunning, including backrunning and sandwich attacks that may not lead to user funds or assets
• Bugs in dependencies (unless they lead to equivalently direct attacks on Wormhole)
• Any secret data checked into the repository. Such as API/AUTH tokens

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 reflected HTML injection with or without javascript
  • This does not exclude persistent plain text injection
• Self-XSS
• 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
• Attacks requiring privileged access from within the organization
• Crashes in play.decentraland.org or scene preview
• Software defects in deployed scenes in play.decentraland.org
• Issues related to scene code itself
• Scenes deployed by users using malicious code that requires users to download or interact with it
• Any vulnerability that requires the user to input commands in the browser console

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