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JustLend DAO

JustLend DAO is a TRON-powered money market protocol aimed at establishing fund pools whose interest rates are determined by an algorithm based on the supply and demand of TRON assets. There are two roles within the protocol, namely suppliers and borrowers. Both of them interact directly with the protocol to earn or pay a floating interest rate. On JustLend DAO, each money market corresponds to a unique TRON asset such as TRX, TRC20 stablecoin (e.g.

Tron
Defi
Lending
Liquid Staking
Solidity
Maximum Bounty
$50,000
Live Since
31 August 2022
Last Updated
08 April 2024
  • PoC required

Select the category you'd like to explore

Assets in Scope

Target
Type
Added on
Smart Contract - GovernorBravoDelegate
2 November 2022
Target
Type
Added on
Smart Contract - Unitroller
31 August 2022
Target
Type
Added on
Smart Contract - Comptroller
31 August 2022
Target
Type
Added on
Smart Contract - GovernorBravoDelegator
31 August 2022
Target
Type
Added on
Smart Contract - Timelock
31 August 2022
Target
Type
Added on
Smart Contract - WJST
31 August 2022
Target
Type
Added on
Smart Contract - jumpRateUSDT
31 August 2022
Target
Type
Added on
Smart Contract - jumpRateUSDJ
31 August 2022
Target
Type
Added on
Smart Contract - jumpRateSUN
31 August 2022
Target
Type
Added on
Smart Contract - jumpRateWIN
31 August 2022
Target
Type
Added on
Smart Contract - jumpRateJST
31 August 2022
Target
Type
Added on
Smart Contract - jumpRateWBTT
31 August 2022

Impacts in Scope

Critical
Direct theft of any user funds, whether at-rest or in-motion, other than unclaimed yield
Critical
Permanent freezing of funds
Critical
Protocol insolvency
High
Theft of unclaimed yield
High
Permanent freezing of unclaimed yield
Medium
Block stuffing for profit
Medium
Griefing (e.g. no profit motive for an attacker, but damage to the users or the protocol)

Out of scope

Program's Out of Scope information

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

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

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