慢雾:Truebit 出现安全事件原因系合约中缺少溢出保护机制

TRU-0,32%
ETH-2,57%

Foresight News 消息,慢雾 SlowMist 安全团队发布了 Truebit Protocol 安全事件分析报告。1 月 8 日,Truebit Protocol 因其 Purchase 合约中的整数溢出漏洞遭受攻击,攻击者能够以接近零成本铸造 TRU 代币并窃取 8,535 枚以太坊(约 2,644 万美元)。根本原因为合约中缺少溢出保护机制,导致价格计算错误。被盗资金随后被转移至 Tornado Cash。建议对使用 Solidity 0.8.0 之前版本编译的合约始终使用 SafeMath 保护所有算术操作,以防止溢出相关的逻辑缺陷。

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