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Metis生态项目Starstream被盗超5亿枚STARS,并造成Agora DeFi损失约820万美元

2022-04-08 14:49:39

链捕手消息,以太坊二层网络Metis上的收益聚合器 Starstream 今日凌晨受其 distributor treasury 合约漏洞影响,被盗超 5 亿枚 STARS ,随后攻击者将 STARS 抵押至借贷协议 Agora DeFi 中并借出 USDC、METIS 等资产,共造成 Agora DeFi 损失约 820 万美元。

据慢雾分析,在 Starstream 的 StarstreamTreasury 合约中存在 withdrawTokens 函数,此函数只能由 owner 调用以取出合约中储备的资金。而在 4 月 7 日晚,StarstreamTreasury 合约的 owner 被转移至新的 DistributorTreasury 合约(0x6f...25),该合约存在 execute 函数,而任意用户都可以通过此函数进行外部调用,因此攻击者直接通过此函数调用 StarstreamTreasury 合约中的 withdrawTokens 函数取出合约中储备的 5.3 亿个 STARS。

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