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y2z Ventures 合伙人:BSC 上出现伪造授权骗取用户 gas 的攻击事件

2023-07-09 10:31:50

ChainCatcher 消息,y2z Ventures 合伙人 blanker.eth 在社交平台表示,BSC 链上出现伪造授权,然后利用安全事件引诱用户通过撤销授权消耗大量 gas 的攻击事件。

攻击方法如下:攻击者部署一个假 ERC-20 合约,然后手动给大批链上地址伪造授权。当用户看到安全工具提醒取消授权时,用户点击取消授权并且发送交易,就会铸造 CHI Token 到攻击者的钱包内,并损失约 60 美元等值 BNB。

blanker.eth 指出 BSC 可以通过整合 EIP-3298 来杜绝此种攻击方式。

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