Exponent

Submit a Bug
18 January 2022
Live since
No
KYC required
$25,000
Maximum bounty

Program Overview

Exponent is a decentralized Capital-as-a-Service (CaaS) protocol. The protocol equips decentralized application (dApp) developers with the tools and services to offload and streamline capital management through smart contracts. Three main components make up the protocol: Vault - a one-stop capital management infrastructure, Middleware - application-specific logic and strategies, and Strategy generation - return generation and volatility managed DeFi products

This Bug Bounty program focuses on the Vault module, which is currently in beta. Multiple components make up the vault: Ex-ETH - ERC20 tokens representing shares of the vault, XPN Main - the contract with core business logics, and Issuance - the contract that streamlines and batch deposits capital into the Exponent vault. At the moment, the XPNSignal contract is not being utilized . The Exponent set of contracts is developed on top of Enzyme Finance’s infrastructure.

For more information about Exponent, please visit https://exponent.cx/.

This bug bounty program is focused on their smart contracts, website, and app and is focused on preventing:

  • Any governance voting result manipulation
  • Direct theft of any user funds, whether at-rest or in-motion, other than unclaimed yield
  • Permanent freezing of funds
  • Miner-extractable value (MEV)
  • Insolvency

Rewards by Threat Level

Rewards are distributed according to the impact of the vulnerability based on the Immunefi Vulnerability Severity Classification System V2. 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.

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 High and Critical Smart Contract bug reports require a PoC to be eligible for a reward.

The following vulnerabilities are not eligible for a reward:

Payouts are handled by the Exponent team directly and are denominated in USD. However, payouts are done in USDC.

Smart Contract

Critical
Level
USD $25,000
Payout
PoC Required
High
Level
USD $2,500
Payout
PoC Required

Websites and Applications

Critical
Level
USD $2,500
Payout
PoC Required
High
Level
USD $1,000
Payout
PoC Required

Assets in scope

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

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
  • Miner-extractable value (MEV)
    Critical
    Impact
  • Insolvency
    Critical
    Impact
  • Temporary freezing of funds for a minimum of 12 hours
    High
    Impact
  • Theft of unclaimed yield
    High
    Impact
  • Permanent freezing of unclaimed yield
    High
    Impact

Websites and Applications

  • Ability to execute system commands
    Critical
    Impact
  • Extract Sensitive data/files from the server such as /etc/passwd
    Critical
    Impact
  • Stealing User Cookies
    Critical
    Impact
  • Taking Down the application/website
    Critical
    Impact
  • Bypassing Authentication
    Critical
    Impact
  • Signing transactions for other users
    Critical
    Impact
  • Wallet interaction modification resulting in financial loss
    Critical
    Impact
  • Redirection of user deposits and withdrawals
    Critical
    Impact
  • Subdomain takeover resulting in financial loss (applicable for subdomains with addresses published)
    Critical
    Impact
  • Tampering with transactions submitted to the user’s wallet
    Critical
    Impact
  • Direct theft of user funds
    Critical
    Impact
  • Submitting malicious transactions to an already-connected wallet
    Critical
    Impact
  • Spoofing content on the target application (Persistent)
    High
    Impact
  • Users Confidential information disclosure such as Email
    High
    Impact
  • Subdomain Takeover without financial loss (applicable for subdomains with no addresses published)
    High
    Impact
  • Privilege escalation to access unauthorized functionalities
    High
    Impact

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)

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
  • Trusting trust/dependency vulnerabilities
  • Oracle failure/manipulation
  • Congestion and scalability
  • Consensus failures
  • Cryptography problems

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
  • Feature requests
  • Best practices

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