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[虚拟币交流]
Yearn Finance遭遇重大yETH漏洞攻击，数百万LST代币被盗（转）
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超级薄荷糖漏洞清空了池子+ r+ E0 y. L1 }# x. j) f
根据区块链追踪记录，攻击者通过新部署的智能合约执行了一系列交易，其中一项交易生成了“几乎无限量”的 yETH。在人为制造的代币供应到位后，攻击者迅速从资金池中提取资产，瞬间耗尽了资金池的流动性。* j1 c: Q% k1 A3 ?: I2 q2 n
6 Z- Y9 F8 x, Z, b; K8 g2 f大约 1000 个 ETH（按当前价格计算价值约 300 万美元）迅速流入了隐私混合器 Tornado Cash。损失的全部规模尚不清楚，但yETH池袭击发生前，他拥有约 1100 万美元的资产。' N O0 b, r6 ?% H" x
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独立调查员兼 X 用户 Togbe 最先发现了这一异常情况，他表示，这些动作类似于触发了超级薄荷糖功能。
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Togbe告诉媒体：“净转账数据显示，yETH超级铸币让攻击者榨干了资金池，获利约1000个ETH。虽然其他ETH也在此次事件中被牺牲，但他们仍然获利了结。”- J6 z5 t5 A) z5 z) @+ h- a; | b) N1 m
1 T @7 v. Y o: Z; ]# a4 KYearn Finance做出回应' ?- ]1 o) S% P' W) i# n, O# X; {
Yearn Finance在警报响起后不久便承认了这起事件，并在X上发布了声明：% T& R; v$ o, u
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“我们正在调查一起涉及 yETH LST 稳定币池的事件。Yearn Vaults（包括 V2 和 V3）不受影响。”
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/ b& G( v8 r: U! H9 i9 a这种区别对用户至关重要。Yearn 的金库——管理着规模更大的生态系统资产池——似乎并未受到影响。相反，攻击者专门针对的是围绕较新的 yETH 产品构建的智能合约基础设施。
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3 c% ~" S0 S! } L1 X尽管如此，此次安全漏洞仍是 Yearn 自 2021 年以来最严重的安全事件之一，在 DeFi 市场流动性仍然不足的情况下，再次引发了人们对复杂收益策略安全性的关注。8 Y% j: E$ J* O: y& ~7 }. [. g, _
; N7 g' b1 C; ^; h Z另请阅读：收益耕作现在还有利润吗？& _" _" D# w, d N" v" E
+ E& o& u0 a* w5 ]) n0 J: ^; R协议压力史4 K+ b/ j1 j' u9 U
这并非Yearn Finance首次遭遇重大安全漏洞攻击。2021年2月，其yDAI金库遭到攻击，损失高达约1100万美元，黑客窃取了近300万美元。9 V& n9 t/ B$ ^
0 x% S% \8 N" t3 T; o, n8 L9 i, j2023年12月，该协议披露，一个故障脚本导致其一个金库头寸损失了63%。虽然该事件并未影响用户资金，但引发了人们对Yearn内部运营保障措施的担忧。: t8 P3 c3 r9 g6 r: M$ i6 l
' }- B6 k y( N4 ?, H0 _Yearn早期的成功与其备受瞩目的创始人Andre Cronje密切相关，他于2020年推出了该平台。已离开该项目于 2022 年启动。自那时起，这个由社区运营的协议不断推出新的收益产品和集成，包括命运多舛的 yETH 池。; ^: K; {6 S% O3 ], @
" P1 H" t B; [8 u( f) K5 ~接下来会发生什么？0 j( l. H% B) M" B$ g
由于数百万美元的 LST 资金丢失，并且攻击者的踪迹被 Tornado Cash 部分掩盖，调查人员正在争分夺秒地拼凑出此次攻击是如何进行的，以及是否有任何资金能够真正追回。& m) r' _8 T t8 J8 Y' {& A
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安全研究人员表示，此次攻击的架构表明攻击者对 Yearn 的合约系统有着深入的了解，这增加了攻击可能存在复杂漏洞或经济设计缺陷的可能性，而不是传统的重入攻击或预言机操纵攻击。
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在 Yearn 努力控制事态发展的同时，更广泛的 DeFi 社区再次面临复杂收益聚合产品的脆弱性——尤其是那些处理代币化质押衍生品的产品，这些衍生品已成为以太坊合并后经济的核心。
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目前，Yearn 用户只能等待该协议的完整事后分析报告。但传递的信息已经很明确：在 DeFi 领域，即使是最经受实战考验的协议，其安全性也仅取决于其最具实验性的产品。 F6 V& x& \* S$ B$ Y
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