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Sorbetto Fragola因LP代币转移缺乏适当费用核算遭到攻击,损失近2070万美元

2021-08-04 13:15:42

链捕手消息,8月4日,Peckshield发推表示,跨链收益率提升平台Popsicle Finance下Sorbetto Fragola产品遭到攻击,导致了约2070万美元的损失,包括2.6K WETH,5.4M USDC,5M USDT,160K DAI,10K UNI,和96 WBTC。据悉,此次攻击是由于LP代币转移时缺乏适当的费用核算导致的。

具体来说,攻击者创建了三个合约A、B和C,并以A.deposit()、A.transfer(B)、B.collectFees()、B.transfer(C)、C.collectFees()的顺序重复了八个池。在该漏洞中,黑客首先从Aave上闪贷了30M USDT, 13K WETH, 1.4KBTC, 30M USDC, 3M DAI和200K UNI,随后并攻击了八个PLP池。

目前,攻击的部分利润(4,100ETH,约1000万美元)被立即存入TornadoCash,而剩余的2560WETH,96WBTC和159,928DAI仍在攻击者的账户中,即0xf9E3D08196F76f5078882d98941b71C0884BEa52。(Twitter)

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