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大方BigFang
@dafangbigfang
大方BigFang@YouTuber holder of #BTC# A BlockChain Enthusiast Media Tree:
参加 April 2020
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慢雾披露,两个 Safe 多签钱包被盗约 114.09 ETH。漏洞出在用于操作 Aave V3 杠杆仓位的第三方模块 FlashLoopAdapter,攻击者伪造身份检查,再利用模块权限转走资产。Aave V3 合约本身未受影响。 多签的安全性也取决于授权了哪些模块。一旦模块拥有执行权限,多名持有人签字这道防线也可能被绕过。
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🚨SlowMist TI Alert🚨 💸 @aave v3 Loop Safe Module Loss: ~114.09 ETH 🔍 Root Cause: FlashLoopAdapter's open()/close() access control only checks ISafe(msg.sender).isModuleEnabled(address(this)), which is spoofable via a fake Safe that always returns true. Its _swap() then executes with fully attacker-controlled router and calldata. Since the adapter is an enabled module of the victim Safes, the attacker set router=victim Safe and data=execTransactionFromModule to drain weETH and Aave collateral. 📌 Attacker: 0x42c2633438609881c8fBAb82414eb9A0c45F9353 📌 Victim: 0xe3b23e47df7cd85876ac6cb05bdb9d7cd5b28520, 0xcfedf95a3653a128dfc2e4288758a1a1850d169f 📌 Vulnerable Contract: 0x16bb8b912da187870c23ec6756bb3fad061283d8 Impact: ~114.09 ETH stolen from two Safe multisigs via forged Safe authentication and arbitrary module execution; ~1300 WETH debt repaid to unlock collateral. Powered by Tx:
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