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Defimon Alerts:某休眠第三方 MakerDAO 清算機器人代理遭提取 200 枚 WETH,損失約 53.8 萬美元

2026-10-06 17:04:50

ChainCatcher 消息,据 Defimon Alerts 監測,某由 Tornado Cash 注資的新地址於 10 月 6 日提取了某休眠 MakerDAO ETH-A 清算機器人代理中的 200 枚 WETH,損失約 53.8 萬美元。

該可升級代理曾在 2020 年贏得四場 ETH-A 清算拍賣(第 1457 至 1460 號,各 50 枚 WETH),但未調用 deal(),抵押品留在 Flipper 中。

實現合約的提取函數未受 ds-auth 保護,任意調用者都可觸發:先對上述舊拍賣調用 deal(),再經 Vat.flux 將抵押品劃到 keeper,隨後 GemJoin.exit 把 200 枚 WETH 轉到調用者指定地址並解包為 ETH。MakerDAO 核心合約按設計運行,漏洞在於第三方機器人未加權限的退出函數。

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