Hackers Stole $1.7 Million Worth of NFTs from Users of OpenSea Marketplace

Malicious actors took advantage of a smart contract upgrade process in the OpenSea NFT marketplace to carry out a phishing attack against 17 of its users that resulted in the theft of virtual assets worth about $1.7 million. NFTs, short for non-fungible tokens, are digital tokens that act like...

SAILFISH System to Find State-Inconsistency Bugs in Smart Contracts

A group of academics from the University of California, Santa Barbara, has demonstrated what it calls a "scalable technique" to vet smart contracts and mitigate state-inconsistency bugs, discovering 47 zero-day vulnerabilities on the Ethereum blockchain in the process. Smart contracts are program...

Smart Contract Bug Results in $31 Million Loss

A hacker stole $31 million from the blockchain company MonoX Finance , by exploiting a bug in software the service uses to draft smart contracts. Specifically, the hack used the same token as both the tokenIn and tokenOut, which are methods for exchanging the value of one token for another. MonoX...

[Bug] A critical bug in bps function

Handle hrkrshnn Vulnerability details A critical bug in bps function: PoolBase.sol function bps internal pure returns IERC20 rt // These fields are not accessible from assembly bytes memory array = msg.data; uint256 index = msg.data.length; // solhint-disable-next-line no-inline-assembly assembly...

Etherblob-Explorer - Search And Extract Blob Files On The Ethereum Blockchain Network

Search and extract blob files on the Ethereum network using Etherscan.io API. Introduction EtherBlob Explorer is a tool intended for researchers, analysts, CTF players or anyone curious enough wanting to search for different kinds of files or any meaningful human-supplied data on the Ethereum...

Reimburse Token Number Error Vulnerability

Reimburse Token REIM is an ethereum-based digital currency.An integer overflow vulnerability exists in the 'mintToken' function of REIM's smart contract implementation. An attacker can exploit this vulnerability to set the balance of any user to an arbitrary value...

Code injection

A gambling smart contract implementation for RuletkaIo, an Ethereum gambling game, generates a random value that is predictable by an external contract call. The developer wrote a random function that uses a block timestamp and block hash from the Ethereum blockchain. This can be predicted by...

CVE-2018-17968

A gambling smart contract implementation for RuletkaIo, an Ethereum gambling game, generates a random value that is predictable by an external contract call. The developer wrote a random function that uses a block timestamp and block hash from the Ethereum blockchain. This can be predicted by...

New proxyOverflow Bug in Multiple ERC20 Smart Contracts (CVE-2018-10376)

On 4/24/2018, 01:17:50 p.m. UTC, PeckShield again detected an unusual MESH token transaction shown in Figure 1. In this particular transaction, someone transferred a large amount of MESH token — 0x8fff,ffff,ffff,ffff,ffff,ffff,ffff,ffff,ffff,ffff,ffff,ffff,ffff,ffff,ffff,ffff 63 f’s to herself...

Hundreds of Millions in Digital Currency Remains Frozen

Between $150 million and $300 million in digital currency called ether remains inaccessible today after a user said he “accidentally” triggered a vulnerability that froze the funds in the popular Parity wallet. Parity Technologies issued an advisory warning users about the flaw in the Parity Wall...