TapeOut.linknews

社区拆解币安被盗:有效签名与 EIP-7702Community breaks down Binance hack: valid signatures and EIP-7702

BIT_672 发线程拆解币安被盗,称 EIP-7702 是 Pectra 升级上线的功能:普通 EOA 可签一笔授权,把账户委托给合约代码执行逻辑,授权生效后能一笔交易扫光钱包内多类代币,无需逐个签名。此次攻击中,黑客入侵或操纵币安签名基础设施,取得热钱包 Binance14 的有效签名,签署 EIP-7702 委托给其扫荡合约。其强调 EIP-7702 本身没有底层代码漏洞,只是作案工具。BIT_672 posted a thread breaking down the Binance hack, saying EIP-7702 is a feature shipped in the Pectra upgrade: a regular EOA can sign an authorization delegating its account to contract code, and once active, one transaction can sweep multiple token types without signing each transfer. In this attack, the hacker compromised or manipulated Binance’s signing infrastructure, obtained a valid signature from the Binance14 hot wallet, and signed an EIP-7702 delegation to a sweeper contract. The thread stresses that EIP-7702 has no underlying code vulnerability and was only the tool.

来源 · 2 条Sources · 2

查看原推文View on X 更多动态 · 新闻频道More updates

评论Comments

    还没有评论,来说两句No comments yet