Money on Chain

Money On Chain brings Bitcoin to mass adoption. To that end, it offers solutions to meet the needs of different types of users: a fully Bitcoin-collateralized stablecoin (DoC), a Bitcoin on steroids conceived for the long term bitcoin holder (BPro), and a dizzying bitcoiner option for lovers of leveraged trading (BTCx). All this, without requiring the delivery of private keys. To make this possible, we developed a unique mathematical-financial model with proven robustness, even in extreme market situations. Money On Chain - Bringing Bitcoin into the mainstream.

Money on Chain is interested in securing its smart contracts, oracle, and price feeder app and is primarily interested in preventing the loss of user funds.

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.

The final payout amount may be affected by the exploitability of the vulnerability. Payouts are handled by Money on Chain directly and are denominated in USD. However, payouts are done in DOC (Bitcoin-collateralized stablecoin).

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

Smart Contracts/Blockchain:

• 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

Websites and Apps:

• Remote Code Execution
• Trusting trust/dependency vulnerabilities
• Vertical Privilege Escalation
• XML External Entities Injection
• SQL Injection
• LFI/RFI
• Horizontal Privilege Escalation
• Stored XSS
• Reflective XSS with impact
• CSRF
• CSRF with impact
• Direct object reference
• Internal SSRF
• Session fixation
• Insecure Deserialization
• Direct object reference
• Path Traversal
• DOM XSS
• SSL misconfigurations
• SSL/TLS issues (weak crypto, improper setup)
• URL redirect
• Clickjacking
• Misleading Unicode text (e.g. using right to left override characters)
• Coercing the application to display/return specific text to other users

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 that rely on social engineering
• Attacks requiring access to leaked keys/credentials

Smart Contracts/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

Websites and Apps

• Theoretical vulnerabilities without any proof or demonstration
• Content spoofing / Text injection issues
• Self-XSS
• Captcha bypass using OCR
• CSRF with no security impact (logout CSRF, change language, etc.)
• Missing HTTP Security Headers (such as X-FRAME-OPTIONS) or cookie security flags (such as “httponly”)
• Server-side information disclosure such as IPs, server names, and most stack traces
• Vulnerabilities used to enumerate or confirm the existence of users or tenants
• Vulnerabilities requiring unlikely user actions
• URL Redirects (unless combined with another vulnerability to produce a more severe vulnerability)
• Lack of SSL/TLS best practices
• DDoS vulnerabilities
• Attacks requiring privileged access from within the organization

The following vulnerabilities are not sought after for website bug reports:

• Theoretical vulnerabilities without any proof or demonstration
• Content spoofing / Text injection issues
• Self-XSS
• Captcha bypass using OCR
• CSRF with no security impact (logout CSRF, change language, etc.)
• Missing HTTP Security Headers (such as X-FRAME-OPTIONS) or cookie security flags (such as “httponly”)
• Server-side information disclosure such as IPs, server names, and most stack traces
• Vulnerabilities used to enumerate or confirm the existence of users or tenants
• Vulnerabilities requiring unlikely user actions
• URL Redirects (unless combined with another vulnerability to produce a more severe vulnerability)
• Lack of SSL/TLS best practices
• DDoS vulnerabilities
• Attacks requiring privileged access from within the organization

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
• Disassembly or reverse engineering of binaries for which source code is not published, not including smart contract bytecode
• Public disclosure of an unpatched vulnerability in an embargoed bounty