Vulnerability Information
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Vulnerability Title
N/A
Vulnerability Description
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.call(_extraData)) is not verified, aka the "evilReflex" issue. NOTE: a PeckShield disclosure states "some researchers have independently discussed the mechanism of such vulnerability."
CVSS Information
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Vulnerability Type
N/A
Vulnerability Title
Block 18 安全漏洞
Vulnerability Description
Block 18（18T）是一款基于以太坊的虚拟货币。 18T的智能合约实现中的‘approveAndCallcode’函数存在安全漏洞，该漏洞源于程序没有验证callcode。攻击者可利用该漏洞窃取资产（将合约的余额转入到攻击者账户）。
CVSS Information
N/A
Vulnerability Type
N/A