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[lastpost] => 2774188 比特币价格分析:看跌背离暗示未来可能出现回调(转) 1760605291 天策-菱玖
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[虚拟币交流]
Conic Finance二度被黑!损失超350万美元 代币CNC暴跌(转载)
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去中心化金融(DeFi)协议Curve生态的收益聚合器和流动性管理协议“Conic Finance” F# {& l. v8 q7 E8 _
21日晚间以来已爆出遭遇2次黑客攻击,该平台的ETH Omnipool资金池首先遭到漏洞利用。. W0 s$ R2 P" i6 a. P, w7 S
据区块链安全公司Beosin的监测账号Beosin Alert周五晚间7点左右报告,Conic Finance遭黑客在一笔交易中被
! F% j6 ?% ^' W! ~盗走326万美元资金,约1,727枚以太币,目前全部ETH赃款已被转移到新地址。9 U: a; G L3 i2 J! Y# P
黑客重入攻击
+ ]- p/ `, Y t+ [% | l Y. x4 RConic Finance官方随后确认遭到攻击,并宣布于前端禁用ETH Omnipool存款,称没有没有其他Omnipools受3 ~4 t0 e4 z3 \ s$ o! ^
到此漏洞的影响,并分析这次事件根本原因是重入攻击,由于对Curve V2池中ETH的Curve元注册表返回的地址
& v/ q, P( o9 V1 s$ X8 F存在错误假设,而能够执行攻击。
' H' N0 E& Q" M/ i6 B+ h& [! a区块链安全公司派盾(Peckshield)初步分析称,漏洞来自Coinic编写的Curve LP Oracle V2合约,他们先前的审计
/ I8 N7 M ^! M4 k+ `( v* ~发现了类似的唯读型重入(read-onlyreentrancy)问题。然而,新推出的Curve LP Oracle V2合约中也出现了同样
" c3 d& B3 B! ]. G的问题,该合约不属于先前Coinic合约审计范围。
0 b; H! s( @3 g/ b6 MCurve则在下回应,由Coinic编写的Curve LP Oracle V2合约算法看似没有错误,可能是设定错误导致漏洞。7 s j j1 g, ?
Beosin解释,此次重入攻击,攻击者利用此漏洞来操纵steCRV、cbETH/ETH-f、rETH-f等代币的价格,使得攻击
h* ~% ~4 H) X0 t: s6 b l者可以转移比他们存入要更多的流动性代币。
6 K' `8 C0 c$ C' G x2 e, \1 DConic Finance遭二度攻击,全面关闭资金池' L# t) q$ n7 p$ h
今日凌晨,Conic官方公告关闭所有Omnipool存款,并在早上7点时暂时全面关闭Omnipool。. K0 i" K& C1 q+ Q$ p
“大约四个小时前,我们收到了影响$crvUSD Omnipool的漏洞利用警报。作为对此的回应,并考虑到今天的
3 f+ {( B' z% g DETH Omnipool漏洞,我们立即实施了最大程度的安全措施并暂时关闭了所有Omnipool。”
+ }- y6 F8 [" ~6 \2 k官方后续推文指出,第二次攻击与ETH Omnipool的重入漏洞无关。攻击者通过利用crvUSD Omnipool获利约
) |6 B3 T7 L* b) e30万美元。随后官方发布通知,建议所有用户立即申请退款并撤销对Conic的应用程式批准,并承诺将全额退还- @& ^" w i* h. {% J$ L/ O; S
用户丢失的代币,还将为符合条件的账户发放1~10,000枚CNC代币作为补偿。
- [- A" R+ ^! v4 VCNC币价失血77%' c7 T9 a; p2 U! z# q+ a6 d3 J
受黑客攻击事件影响,Defillama数据显示,Conic Finance的总锁仓量(TVL)从1.56亿美元暴跌近67%,目前仅剩
u \4 v1 R; _5,193万美元;原生代币Conic(CNC)更一度跌超77%至1.34美元,截稿前报2.84美元,近24小时跌幅仍高达1 }2 z0 M- J1 A0 w/ p, p
52.8%。
4 q& O% L7 w% I6 g
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