EUVD-2018-4656

Malware in sbrugna...

Logic flaw vulnerability in Globalvillage ecosystem

Globalvillage ecosystem GVE is a virtual currency system based on blockchain technology.A security vulnerability exists in the 'approveAndCallcode' function in GVE's smart contract implementation, which stems from the program's failure to validate the callcode. The vulnerability can be exploited ...

Design/Logic Flaw

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"...