MEV bot can frontrun user's repayment to liquidate user first when the OmniPool is unpaused

Lines of code Vulnerability details Impact MEV bot can frontrun user's repayment to liquidate user first when the OmniPool is unpaused Proof of Concept this report tries to combine a few issue 1. when OmniPool is paused, interest is still accuring 2. when OmniPool is paused, user cannot repay 3...

Vesting amount is calculated incorrectly in StakedUSDe contract

Lines of code Vulnerability details Description The description says vestingAmount is the contract balance + any unvested remainder at that time but it is set incorrectly in the code. /// @notice The amount of the last asset distribution from the controller contract into this /// contract + any...

bad Actor can block the operation of mint by creating duplicate order by frunt runing original order

Lines of code Vulnerability details Impact bad Actor can block the operation of mint by creating duplicate order by frunt runing original order So basically the contracts are doing orders by users RFQ to system whether by API or front end. and make the mint process the problem is in the contract...

There is no check for collateral token in mint matches same in withdraw

Lines of code Vulnerability details Impact While we understand that usde is the base token here, we see that on minting used token you would need to transfer some tokens to the contract and get some used minted to you and on redemption get usde burnt to get a token sent back to you. The implicati...

Taking deposits hostage

Lines of code Vulnerability details Impact An initial attacker can gain the power to hold subsequent deposits into StakedUSDeV2 hostage, and release them at will e.g. for a ransom. Proof of concept The checkMinShares requirement called after any withdrawal and deposit function checkMinShares...

Limits on mint and redeem per block of USDe will lead to paralysis

Lines of code Vulnerability details Impact Since the number of mint and redeem per block is limited, attackers can use scripts to squeeze out the quota with their own addresses. Thena cannot determine whether it is a normal user address or an attack address, causing the contract to be paralyzed. ...

DoS of the staking functionality due to the check of minimum total supply

Lines of code Vulnerability details Impact The StakedUSDe contract can be accidentally blocked if the all shares will be redeemed before the VESTINGPERIOD end. The checkMinShares function will then revert for any eligible deposits. The same result will be in case of asset transferring to the...

bad Actor can block the operation of mint by creating duplicate order by frunt runing original order

Lines of code Vulnerability details Impact bad Actor can block the operation of mint by creating duplicate order by frunt runing original order So basically the contracts are doing orders by users RFQ to system whether by API or front end. and make the mint process the problem is in the contract...

OFAC sanctioned lender can frontrun nukeFromOrbit with a transfer of his funds

Lines of code Vulnerability details Impact In order to prevent a sanctioned lender for example by OFAC to poison an entire market, a function has been developed to block and transfer the sanctionned user's funds to an escrow contract. This escrow contract can be released if borrower decides so by...

DoS Any Escrow by Frontrunning Creation with a Codehash Change

Lines of code Vulnerability details Impact Any escrow contract can be DoSed by sending a 1 wei transaction to the escrow address that will be created for a user. When an account has no code and has never been interacted with, the codehash will be bytes320. This will result in escrow creation...

_blockAccount doesn’t transfer asset correctly getting portion of funds locked permanently

Lines of code Vulnerability details Description When blockAccount is called and the account that is getting blocked has balance in the market, escrow contract is created and balance of the user is transferred to this contract by updating accounts mapping. When the account is unsanctioned, the...

Sanctionned funds keep earning APR, and protocol earning fees on these funds

Lines of code Vulnerability details Impact When a user is sanctioned, if he has a scaledBalance not in the withdrawal queue, calling the nukeFromOrbit function will send sanctioned funds to an escrow contract, and these funds will keep earning APR. This is because when a deposit is executed, the...

No Create2 Contract Deployment Check can prevent a borrower from deploying contracts from a factory if deployment fails

Lines of code Vulnerability details Descripion When a contract is deployed using Create2 the deployment can fail without causing a revert. The following conditions can cause it to not revert: 1. A contract already exists at the destination address. 2. Insufficient value to transfer. 3. Sub contex...

The approve function can be frontrun

Lines of code Vulnerability details Impact Bob steals tokens from Alice. Proof of Concept In the file WildcatMarketToken.sol there is an approve function: function approveaddress spender, uint256 amount external virtual nonReentrant returns bool approvemsg.sender, spender, amount; return true; th...

Deploying a market with a non-ERC20 asset can cause incorrect interaction with asset

Lines of code Vulnerability details Impact The market contract may expect certain ERC20 functions to be present and behave in a specific way. If the asset contract does not adhere to the ERC20 standard, the market may behave unexpectedly, resulting in incorrect token balances, pricing, or other...

Uninitialized State Variables

Lines of code Vulnerability details Impact in The resetTmpMarketParameters function is an internal function, which means it can only be called from within the WildcatMarketController contract itself. If a child contract inherits from WildcatMarketController and calls resetTmpMarketParameters befo...

Code injection

era-compiler-vyper is the EraVM Vyper compiler for zkSync Era, a layer 2 rollup that uses zero-knowledge proofs to scale Ethereum. Prior to era-compiler-vype version 1.3.10, a bug prevented the initialization of the first immutable variable for Vyper contracts meeting certain criteria. The proble...

CVE-2023-46232

The CVE concerns era-compiler-vyper (EraVM Vyper compiler for zkSync Era). Before 1.3.10, a bug in initialization of the first immutable variable for Vyper contracts could occur when a String or Array allocates more 256‑bit words than are initialized; the second word’s index could be left unset (...

Price inflation pump

Lines of code Vulnerability details Impact AfEth price can be inflated until severe rounding errors occur. Proof of concept Deposit in AfEth such that totalValue == 1 and thus 1 afEth is minted. Then AfEth.price will be in the open interval $1,2$ AfEth.price $= 1$ is extremely unlikely. Deposit i...

ODProxy contract can't grant safeRights (can't change the state of the called contracts) which will disable generating debts functionality

Lines of code Vulnerability details Impact The protocol implements a proxy mechanism to enable only the Vault721 contract from transferring SAFEs, as each SAFE is represented by a NFV non fungible vault. This contract has only one function execute that makes delegatecalls to other contracts, so...