Design/Logic Flaw

@web3-react is a framework for building Ethereum Apps . In affected versions the chainId may be outdated if the user changes chains as part of the connection flow. This means that the value of chainId returned by useWeb3React may be incorrect. In an application, this means that any data derived...

ETHCrowdfundBase._finalize() calculates the total voting power wrongly.

Lines of code Vulnerability details Impact After the crowdfund is finalized, the party wouldn't work properly because total voting power is greater than the sum of all voters' voting power. In the worst case, any proposal including the distribution one wouldn't be executed because it doesn't meet...

Google Launches New Cybersecurity Initiatives to Strengthen Vulnerability Management

Google on Thursday outlined a set of initiatives aimed at improving the vulnerability management ecosystem and establishing greater transparency measures around exploitation. "While the notoriety of zero-day vulnerabilities typically makes headlines, risks remain even after they're known and fixe...

Google Launches New Cybersecurity Initiatives to Strengthen Vulnerability Management

Google on Thursday outlined a set of initiatives aimed at improving the vulnerability management ecosystem and establishing greater transparency measures around exploitation. "While the notoriety of zero-day vulnerabilities typically makes headlines, risks remain even after they're known and fixe...

SVG script injection in Bio.tokenURI

Lines of code Vulnerability details Impact Bio.tokenURI function returns an encoded SVG that is supposed to be parsed by a browser or another tool. A hacker can inject a malicious script in the SVG element by minting Bio NFT with a bio with a javascript .... Depending on how this SVG element is...

LiquidityPool.sol#L657 : setFees() could be abused to steal the funds when there is huge transacion is happening.

Lines of code Vulnerability details Impact Set fee functions can be set to any arbitrary value when the transaction is happening. There are more possibility that user could lose most of all of their hard earned funds. Proof of Concept Below functions can be called by autheraised person to fix the...

L2EthToken.sol balance[address(this)] COULD UNDERFLOW

Lines of code Vulnerability details Impact The ethereum balance of the L2EthToken.sol contract can underflow thus breaking the accounting of the protocol for L2-L1 fund transfers. Proof of Concept L2EthToken.sol contract has the withdraw function to transfer funds to L1 for withdrawal. In the...

deploying contracts with forceDeployOnAddress will break contracts when callConstructor is false

Lines of code Vulnerability details Impact when function forceDeployOnAddress used for deploying contract and callConstructor is false, then contract's bytecodehash would stay in constructing state and calling the contract won't be possible. it can cause protocol and other contracts that are usin...

Anyone can steal funds in the Contract Deployer

Lines of code Vulnerability details Impact If ContractDeployer.sol ever holds funds, it could potentially be drained via the chained creation of new contracts. Proof of Concept When creating a contract the create/create2 functions will be called inside the contract deployer here: , which after...

Possible loss of funds when withdrawing from L2 to L1

Lines of code Vulnerability details Impact Context To initiate a withdrawal from L2 to L1, a user can call L2EthToken.withdraw method, then funds will be available to calim on L1 via finalizeEthWithdrawal method of MailboxFacet. function withdrawaddress l1Receiver external payable override The...

CommunityIssuance.sol – Stability pool can manipulate time stamps with the fund function to issue more oath than appropriate.

Lines of code Vulnerability details If lastDistributionTime is set to a date in the future, it would allow the issueOath function to continue to mint tokens even after it should have stopped. This is because the if statement in issueOath checks whether the current time is greater than...

Governance can cap the outflow of funds significantly preventing user redemptions

Lines of code Vulnerability details Impact The Reserve protocol always intends to allows free outflow of rToken collaterals. The redemption of rToken is allowed even when the protocol is paused. A Throttle mechanism is in place to just limit the outflow of funds from the contract. However the...

RewardTokens can be locked in MultiRewardStaking contract when the rewardsEndTimestamp of the rewardsTokens are different.

Lines of code Vulnerability details Impact To claim reward tokens from the MultiRewardStaking contract deployed, a user must call claimRewardsaddress user, IERC20 memory rewardsTokens. The rewardsTokens array is populated with getAllRewardsTokens which returns all the reward Tokens the...

Inflation attacks with virtual shares and assets

Lines of code Vulnerability details Impact When the BaseAdapter is empty. Someone can frontrun a user to steal his funds by an inflation attack. Senario Lets say Alice wants to deposit 1 token with decimal 18, so 1e18 units to the vault calling deposit. This is how the attack would unfold. The...

Any user can drain the entire reward fund in MultiRewardStaking due to incorrect calculation of supplierDelta

Lines of code Vulnerability details Impact Reward deltaIndex in accrueRewards is multiplied by 10decimals but eventually divided by rewards.ONE which is equal to 10IERC20MetadataaddressrewardToken.decimals in accrueUser. If the number of decimals in MultiRewardEscrow share token differs from the...

_squeezeDrips() passed the amount argument in place of amtPerSec for the _addDeltaRange, causing either underflow or the sender losing lots of fund!

Lines of code Vulnerability details Impact Detailed description of the impact of this finding. squeezeDrips passes the amount argument in place of amtPerSec for its callee addDeltaRange in the following line addDeltaRangestate, cycleStart, cycleStart + 1, -int256amt AMTPERSECMULTIPLIER; The last...

int128 cast underflow in _receiveDripsResult()

Lines of code Vulnerability details Impact In receiveDripsResult, the type cast of uint128 could underflow, and result in wrong receivedAmt. The impacts could be: wrong amount being transferred to users and drain the protocol fund inaccurate transfer amount, some users lose fund and some receive...

Critical Vulnerability exposed Reentrancy attack allowing unlimited Fund Withdrawals.

Lines of code Vulnerability details Impact Function register where it transfers a fixed amount of $NOTE tokens 100 $NOTE to the cidFeeWallet address without checking the reentrancy status. An attacker can repeatedly call this function to drain the contract balance...

Precision loss in the invariant function can lead to loss of funds

Lines of code Vulnerability details Impact An attacker can steal the funds without affecting the invariant. Proof of Concept We can say the function Pair.invariant is the heart of the protocol. All the malicious trades should be prevented by this function. Pair.sol 52: /// @inheritdoc IPair 53:...

withdraw() function uses faulty burn() function for transfer and it has no access control implemented.

Lines of code Vulnerability details Impact The withdraw function has no access control implemented and can be called by anyone. It also uses the burn function to transfer funds. A Malicious actor can withdraw the balance of Lendgine.sol. Proof of Concept Alice a malicious actor uses a contract to...