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Ostium 攻击复盘,链下预言机权限被盗,伪造 BTC 价格套利 2375 万 USDC

2026-07-30 08:46:47

ChainCatcher 消息,据 Ostium 官方报告,此次攻击核心在于链下价格报告系统权限遭入侵,与智能合约漏洞无关。攻击者获取链下授权后,利用协议已注册的合法转发路径,向 BTC-USD 市场提交伪造价格(5,000 美元与 60,000 美元),在同一交易内原子化完成开仓-平仓套利循环,并以 100 USDC 起步滚动放大规模,历经 8 笔交易,于 5 分钟内从 OLP 金库套取 2375 万 USDC,直至金库熔断机制触发。

根本原因在于链下基础设施缺乏与链上多签同等级别的多方审批机制,形成单点权限漏洞。被盗资金已转换为 ETH 并经 Tornado Cash 混币,追踪工作仍在进行中。

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