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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1 O9 `7 D. f1 F4 T
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。
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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。
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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。, u% t8 [: Y7 v9 Z
+ ~, P+ ?+ ~; l' yTogbe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。”
0 u9 H8 _* c0 w" _6 ]5 ?$ z- r9 M7 g- l2 m
Yearn Finance做出回应
8 z+ l4 ^4 q% }: YYearn 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：
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7 D$ `$ c2 x: E/ n0 j# f- |“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。”9 N0 ?% u& c0 F+ H# Y, A2 L8 A
; r! k% h; B2 \! ^+ e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。
9 l& }! r( D) N$ e. A A$ ]0 K+ H4 y* o* V1 X% ?- {9 i
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。, u* I; D* Z; }
! Y/ B+ e7 h6 W' k* X1 q, W另请阅读：收益耕作现在还有利润吗？
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& I: S. v! u- i! I, o4 X% e! I' ~. o协议压力史+ R9 m& ]% g6 o+ F& P
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。
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/ H! a8 ?: _: |9 A" Q2023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。
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& {3 q2 O8 \( f% Y) {$ IYearn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。
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+ h2 b5 k) H W; w/ y9 A$ A7 _接下来会发生什么？" z& z. M" j) J2 v l5 [2 v' K
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。( Q) t$ N5 c0 J
. q( l7 c' w9 n: r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。4 h& q" Y% _" J9 V9 E7 e a+ D
4 o5 Z* p1 l+ u( @( F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。- G" ?% ^" {+ m. }& N
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