EvilReflex

이게 뭔가요? 이것은 스마트 컨트랙트의 evilReflex 취약점을 테스트하기 위한 간단한 테스트입니다. 테스트 방법? 1단계：evilReflex.sol 컴파일 2단계：HACKME 배포 예: Account Address： 0x62ba0a06ffc1d0a706172e1ed755b9b91f53a617 balance: 10090000000000000000000000 Contract address： 0x26336eb6761d7c6ac28251d5e20f63623fc16ad5 balance: 100900000000000000000000...

EUVD-2018-4655

Malware in sbrugna...

EUVD-2018-4656

Malware in sbrugna...

New evilReflex Bug Identified in Multiple ERC20 Smart Contracts (CVE-2018-12702, CVE-2018-12703)

Update: 2018-06-24 With swift, coordinated response from Huobi.pro, we appreciate the announcement 11 on suspending the deposits and withdrawals of affected tokens! Our vulnerability-scanning system at PeckShield has so far discovered several dangerous smart contract vulnerabilities batchOverflow...

CVE-2018-12702

The approveAndCallcode function of a smart contract implementation for Globalvillage ecosystem GVE, an Ethereum ERC20 token, allows attackers to steal assets e.g., transfer the contract's balances into their account because the callcode i.e., spender.callextraData is not verified, aka the...

Design/Logic Flaw

The approveAndCallcode function of a smart contract implementation for Globalvillage ecosystem GVE, an Ethereum ERC20 token, allows attackers to steal assets e.g., transfer the contract's balances into their account because the callcode i.e., spender.callextraData is not verified, aka the...

CVE-2018-12702

The CVE-2018-12702 entry concerns Globalvillage ecosystem (GVE) ERC20 contracts where approveAndCallcode allows an attacker to hijack a callback via a non-verified _spender.call(_extraData), enabling token transfers from the vulnerable contract (evilReflex). Connected sources describe the mechani...

CVE-2018-12703

The CVE-2018-12703 vulnerability affects the approveAndCallcode flow in Block 18 (18T) ERC20 contracts. The issue is that _spender.call(_extraData) is not verified, enabling an attacker to hijack the callback and trigger arbitrary contract calls from the vulnerable contract. According to the Seeb...

CVE-2018-12702

The approveAndCallcode function of a smart contract implementation for Globalvillage ecosystem GVE, an Ethereum ERC20 token, allows attackers to steal assets e.g., transfer the contract's balances into their account because the callcode i.e., spender.callextraData is not verified, aka the...

CVE-2018-12703: Improper Input Validation

The approveAndCallcode function of a smart contract implementation for Block 18 18T, an tradable Ethereum ERC20 token, allows attackers to steal assets e.g., transfer the contract's balances into their account because the callcode i.e., spender.callextraData is not verified, aka the "evilReflex"...

CVE-2018-12702: Improper Input Validation

The approveAndCallcode function of a smart contract implementation for Globalvillage ecosystem GVE, an Ethereum ERC20 token, allows attackers to steal assets e.g., transfer the contract's balances into their account because the callcode i.e., spender.callextraData is not verified, aka the...