In case of accrual of additional income for holding rUSDY tokens, the protocol is subject to a flashloan attack

Lines of code Vulnerability details Impact rUSDY is the rebasing variant of USDY token, and is heavily based on other rebasing tokens such as stETH. Users are able to acquire rUSDY tokens by calling the wrapuint256 function on the contract. Where as the price of a single USDY token varies over...

Incorrect initialization of rUSDY.sol

Lines of code Vulnerability details Impact rUSDY.sol contract inherits PausableUpgradeable contract but does not invoke its initialzers during its own initialization. Due to which the state of PausableUpgradeable contract remain uninitialized. File: contracts/usdy/rUSDY.sol contract rUSDY is...

Lack of Oracle Price Validation in rUSDY

Lines of code Vulnerability details Summary Ondo's custom oracle, RWADynamicOracle, is responsible for delivering the price of USDY to the rUSDY token contract. The oracle is called in four different functions for the price of USDY; the results of which are also used in core functions in the toke...

The rUSDY.transferFrom function can cause reentrancy if is a contract been approved

Lines of code Vulnerability details Impact The rUSDY.transferFrom function can cause reentrancy if is a contract been approved, the function looks like: function transferFrom address sender, address recipient, uint256 amount public returns bool uint256 currentAllowance = allowancessendermsg.sende...

No removal mechanism from blocklist, allowlist and sanctionsList

Lines of code Vulnerability details Impact rUSDY.sol has setBlocklist sets the blocklist address, setAllowlist sets the allowlist address, and setSanctionsList sets the sanctions list address functions: However, the mechanism for removing addresses from arrays is not implemented anywhere. Even in...

Rounding in the unwrap function in rUSDY may cause fund loss for users.

Lines of code Vulnerability details Impact Rouding with BPSDENOMINATOR in function unwrap in rUSDY.sol may cause users to be transfered back less than expected USDY. POC The rUSDY.sol contract provides a way to wrap an amount of USDY as shares in order to gain profit in rUSDY. This is done throug...

The USDT.sol contract does not accrue additional income in the form of rUSDY tokens

Lines of code Vulnerability details Impact rUSDY is the rebasing variant of USDY token, and is heavily based on other rebasing tokens such as stETH. Users are able to acquire rUSDY tokens by calling the wrapuint256 function on the contract. Where as the price of a single USDY token varies over...

A user with the BURNER_ROLE role should be able to burn rUSDY tokens from the balance of a blocked address

Lines of code Vulnerability details Impact There are functions for blocking users: setBlocklist - setAllowlist - setSanctionsList - Suppose the user has rUSDY tokens. Then it was added to the blocklist. His tokens will then be blocked. There is a burn function where you can burn rUSDY tokens from...

guardian multisig should be timelock

Lines of code Vulnerability details Impact Per the rUSDYFactory.sol, The Natspec states the guardian address is a multsig address which will be passed in constructor during deployement of factory contract. @notice guardian address in constructor is a msig. and constructoraddress guardian guardian...