Call to lend() function can be frontrunned with fee increase

Lines of code Vulnerability details Impact Malicious admin could frontrun users lend transaction anytime and set feenominator to any value using setFee and bigger fee than user expected. /// @notice sets the admin address /// @param a address of a new admin /// @return bool true if successful...

harvest() can be frontrun, to make the AURABAL token stuck

Lines of code Vulnerability details Impact In the LOCKER contract https://etherscan.io/address/0x3Fa73f1E5d8A792C80F426fc8F84FBF7Ce9bBCACcode anyone can call getreward for any account, therefore an attacker can frontrun an authorized actor, by calling getrewardaddressmyStrategy, before the harves...

Upgraded Q -> M from 294 [1654474576938]

Judge has assessed an item in Issue 294 as Medium risk. The relevant finding follows: Owner can frontrun exercise to increase fees A malicious owner account can observe and frontrun calls to exercise and extract 100% of the strike price as a protocol fee. Scenario: A malicious owner observes a ca...

Anyone can add Bribe reward tokens and cause DoS

Lines of code Vulnerability details Impact The Bribe.notifyRewardAmount function does not have any access restriction. Anyone an attacker can frontrun and call this function to add arbitrary even malicious reward tokens up to MAXREWARDTOKENS = 16. An attacker is able to frontrun and add 16 fake...

Anyone can add Gauge reward tokens and cause DoS

Lines of code Vulnerability details Impact The Gauge.notifyRewardAmount function does not have any access restriction. Anyone an attacker can frontrun and call this function to add arbitrary even malicious gauge reward tokens up to MAXREWARDTOKENS = 16. An attacker is able to frontrun and add 16...

Frontrun attack to steal first depositor money

Lines of code Vulnerability details Impact Frontrun attack to steal first depositor money Proof of Concept The flow is as following: 1. The first depositor wants to deposit X. 2. We detect it and frontrun 2 operations: 1. We deposit 1 of the underlying to the system. In exchange we receive 1 shar...

Index Minting and Redemption Can Be Frontrun

Lines of code Vulnerability details Impact According to the provided source code, the user must transfer the underlying asset to the contract prior to calling mint or the index token before to calling burn. If these two actions are performed on the difference block, it introduces the risk that...

Malicious users can frontrun borrowers trying to repay loans, causing DoS and possibly a loan default

Lines of code Vulnerability details Impact Attackers can listen for a borrower to call repayAndCloseLoan on a specific loanId, and frontrun their transaction with a call to lend, creating a new loan with an increased amount, causing the borrower's transaction to fail due to the new loanAmount bei...

createProject can be frontrun

Lines of code Vulnerability details Impact This is dangerous in scam senario because the malicious user can frontrun and become the owner of the collection. As owner, one can withdraw paymentToken. note that collections.isForSale can be change by frontrunner Proof of Concept 1. Anyone can call...

Possible frontrun on deposits on LiquidityPool

Lines of code Vulnerability details Impact Rewards are given to a user for depositing either ERC20 tokens or their native token into the LiquidityPool. This reward is used to incentivize users to deposit funds into the liquidity pool when the pool is not in an equilibrium state. For regular users...

Users Can Frontrun Token Distributions Using Flashloans

Lines of code Vulnerability details Impact The collector suite of contracts will actively send ANC token distributions to staked ANC token holders. However, because it is known beforehand that a distribution will be made to the governance contract, users can abuse this to frontrun distributions b...

Private sale spoofing

Lines of code Vulnerability details Impact Similar to spoofing in finance, users can create private sales with correct signatures but then frontrun the buy with a transfer to a different wallet they control. No funds are lost as this the NFT FETH exchange is atomic but it can be bad if third...

Can drain ETHERBASE

Lines of code Vulnerability details Impact The postIncomingMessages function tops up the contract with the gas token in topUpBalance. Note that the amount of gas tokens to be topped up from the ETHERBASE contract depends on msg.sender.balance, the caller's gas token balance. Attackers with a zero...

QA Report

LOW : 1. Title : permitAndMulticall can be frontrun, that will lead to the user must reasign the TX Impact : In the permitAndMulticall it takes from as a user input, since all tx in the blockchain is public, a malicious user might frontrun the permitAndMulticall and providing 0 data, which will...

Slurp can be frontrun with fee increase

Lines of code Vulnerability details Impact The TurboSafe.slurp function fetches the current fee from the clerk. This fee can be changed. The slurp transaction can be frontrun with a fee increase specifically targeted for the vault or the asset by the clerk and steal the vault yield that should go...

Profile creation can be frontrun

Lines of code Vulnerability details Impact The LensHub/PublishingLogic.createProfile function can be frontrun by other whitelisted profile creators. An attacker can observe pending createProfile transactions and frontrun them, own that handle, and demand ransom from the original transaction...

Sale operator may frontrun purchases in order to modify the price arbitrarily

Lines of code Vulnerability details Impact Buyer's cannot set a minimum amount of CTDL that they will expect so BadgerDAO can force them to receive a smaller amount than expected. Proof of Concept The buy function only allows the buyer to specify an amount of tokenIn to send to the contract and...

setSherlockCoreAddress can be frontruned.

Handle wuwe1 Vulnerability details Proof of Concept SherDistributionManager.sol and AaveV2Strategy.sol are affected by this. For sdm, attacker can monitor mempool and frontrun the setSherlockCoreAddress . By setting the sherlockCore as a address controlled by attacker. Attacker can call pullRewar...

VaderPoolV2 minting synths & fungibles can be frontrun

Handle cmichel Vulnerability details The VaderPoolV2 mintFungible and mintSynth functions perform an unsafe nativeAsset.safeTransferFromfrom, addressthis, nativeDeposit with a parameter-specified from address. Note that these functions are not called by the Router, they are directly called on the...

Anyone Can Frontrun VaderPoolV2.mintSynth() To Steal Synthetic Assets

Handle leastwood Vulnerability details Impact The mintSynth function is callable by any user and creates a synthetic asset against foreignAsset if it does not already exist. The protocol expects a user to first approve the contract as a spender before calling mintSynth. However, any arbitrary use...