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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5 L" w# ~- p8 ~# W* {7 L
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。& I+ ?, p" ~; G) A# g) j' w2 y: }* ~
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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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" ]; f* e" c2 i# n& W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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! s- I+ F+ Q) ^* e9 x9 N# n8 q" STogbe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。”
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' p: K% \% S0 jYearn Finance做出回应5 w5 Q3 x9 a0 D7 d5 e
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：
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9 t- y- A) j- s( s8 P% j“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。”6 x8 J3 |; w3 l3 W x( z7 |" x! Y' r
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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。7 h; J& B" ?# c! u
1 h. K% k/ r" O0 T" G! [8 o5 A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。
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7 s4 D: u9 ~# @+ z7 n$ {/ ?) }2 ~$ p* P: q另请阅读：收益耕作现在还有利润吗？
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协议压力史
% T# m' e1 ?1 c5 o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。; D/ p: |/ Z( E$ G0 i7 F- b
, N3 Y( i2 O5 D; [' c1 I& W* t2023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。% F3 x) J: W% e. o5 B( ~& j, S) y
. u* z k% H1 |* d" @3 B4 DYearn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。: F9 f6 @$ e; [! T, z4 i' n
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接下来会发生什么？
7 X; l3 g0 I# L7 z: d6 \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。
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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。- L- Q/ R' w, B) q9 |
+ e) h& X( ], s* z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。5 t2 c( R( F- j# l, l4 `
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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。* @% |+ B0 w k; F3 l
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