SimpleERC20Escrow's initialize() can be frontrun

Lines of code Vulnerability details Impact The user's collateral is not held in the market contract but is instead held in individual escrows. Every user has a unique escrow for every market. And the escrow contracts are created via the Market contract's createEscrow function. And it's initialize...

The Reciprocal Value of Access to Maintainers

Last May I left Google to build a more sustainable model for Open Source maintenance. After a summer break, I resumed my maintenance work on the Go project in September, and I started offering my services to companies that rely on Go. My vision is that of Open Source maintenance as a real...

Users can avoid paying gas fees

Lines of code Vulnerability details Impact User can avoid paying gas fees by setting gasPrice to 1 wei and gasLimit to 0. Operators will not receive a gas compensation. Also, fallback operators won't be able to pick up such jobs. Proof of Concept 1. Bridging out is a public function that can be...

Critical Flaw Reported in Move Virtual Machine Powering the Aptos Blockchain Network

Researchers have disclosed details about a now-patched critical flaw in the Move virtual machine that powers the Aptos blockchain network. The vulnerability "can cause Aptos nodes to crash and cause denial of service," Singapore-based Numen Cyber Labs said in a technical write-up published earlie...

Ankr Launches Chainscanner Blockchain Explorer Tool

By Waqas The Chainscanner is available for free on the Ankr website, allowing users to search for transaction data, addresses, smart contracts, and much more. This is a post from HackRead.com Read the original post: Ankr Launches Chainscanner Blockchain Explorer Tool...

Upgraded Q -> M from 42 [1666367610163]

Judge has assessed an item in Issue 42 as Medium risk. The relevant finding follows: Permit signature replay across forks Details: GolomTrader.sol defines chainId at contract deployment without reconstructing it for every signature. However, as stated in the security considerations section of...

Upgraded Q -> M from 696 [1666361742731]

Judge has assessed an item in Issue 696 as Medium risk. The relevant finding follows: L05 - Usage of trasfer over call to send Ether could cause unexpected Reverts payablepayAddress.transferpayAmt; // royalty transfer to royaltyaddress The function payEther sends ether via transfer which passes a...

Upgraded Q -> M from 266 [1666361934775]

Judge has assessed an item in Issue 266 as Medium risk. The relevant finding follows: Stop Using Transfer Use call instead of transfer, as per. This does not introduce any issues for re-entrancy as all calling functions are marked non-reentrant. --- The text was updated successfully, but these...

Regulating DAOs

In August, the US Treasurys Office of Foreign Assets Control OFAC sanctioned the cryptocurrency platform Tornado Cash, a virtual currency "mixer" designed to make it harder to trace cryptocurrency transactions--and a worldwide favorite money-laundering platform. Americans are now forbidden from...

Incorrect implementation of the MerkleVerifier.sol library

Lines of code Vulnerability details Impact The MerkleVerifier results in an incorrect verification of the Merkle Tree. Description Using a simple test case from and deploying the contracts with MerkleVerifier.sol. We can see that the results differs when attempting to verify the Merkle Tree. Test...

Cannot Withdraw GOO Accrued In GobblerReserve Contracts

Lines of code Vulnerability details Impact The affected GobblerReserve contract does not implement any functionality to withdraw any accrued GOO. Considering that the community and team addresses in the ArtGobblers contract are going to be newly deployed GobblerReserve contracts, immutable and...

use safeERC20

Lines of code Vulnerability details Impact Some tokens contracts like USDT don't comply with the erc20 standard, the transfer doesn't return a boolean. Proof of Concept Tools Used Recommended Mitigation Steps Use the safeErc20 library from OpenZeppelin. --- The text was updated successfully, but...

Crypto Trading Firm Wintermute Loses $160 Million in Hacking Incident

In what's the latest crypto heist to target the decentralized finance DeFi space, hackers have stolen digital assets worth around $160 million from crypto trading firm Wintermute. The hack involved a series of unauthorized transactions that transferred USD Coin, Binance USD, Tether USD, Wrapped...

[NAZ-M1] No Storage Gap for Upgradeable Contract Might Lead to Storage Slot Collision

Lines of code Vulnerability details Impact For upgradeable contracts, there must be storage gap to "allow developers to freely add new state variables in the future without compromising the storage compatibility with existing deployments" quote OpenZeppelin. Otherwise it may be very difficult to...

Elrond-go has improper initialization

Impact Read only calls between contracts can generate smart contracts results. For example, if contract A calls in read only mode contract B and the called function will make changes upon the contract's B state, the state will be altered for contract B as if the call was not made in the read-only...

GHSA-MV8X-668M-53FG Elrond-go has improper initialization

Impact Read only calls between contracts can generate smart contracts results. For example, if contract A calls in read only mode contract B and the called function will make changes upon the contract's B state, the state will be altered for contract B as if the call was not made in the read-only...

# _safeMint() should be used rather than _mint() wherever possible

Lines of code Vulnerability details safeMint should be used rather than mint wherever possible Impact In Token.sol.sol, eventually it is called ERC721 mint. Calling mint this way does not ensure that the receiver of the NFT is able to accept them, making possible to lose them. safeMint should be...

User that uses auto compounding solution to auto compound cTokens and smart contracts that hold cTokens can't redeem their cTokens to FEI

Lines of code Vulnerability details Impact You mentioned that "Only EOA addresses will be listed in the merkle nodes, as addresses also need to perform an ECDSA signature on a message to claim the swap." This leaves any contract holding that cToken rugged. Moreover, not only contract Is rugged, b...

Lack of Access Control on burnFeiHeld() function.

Lines of code Vulnerability details Impact: The burnFeiHeld has external visibility modifier. There is no access control on burnFeiHeld function in SimpleFeiDaiPSM.sol contract. Any external user can burn FEI on this contract. function burnFeiHeld external uint256 feiBalance =...

Malicious Package

Overview tiffany-contracts is a malicious package. The package's name is based on existing repositories, namespaces, or components used by popular companies in an effort to trick employees into downloading it, also known as 'dependency confusion'. Therefore, you're only vulnerable if this package...