ribbonfinance

【DeFi 被黑复盘】💸 一次预言机（oracle）升级，直接把 8 位小数变成 270 万美元提款机！！

📌 事件总结：

- 受害者：#aevo （#RibbonFinance 的旧版 DeFi 期权金库）。
- 时间：2025年12月12日。
- 损失金额：约 270 万美元。
- 核心原因：官方在12月6日的一次维护预言机（Oracle）升级里导致。

⚡️ 我尽量用最简单的话，梳理了这次攻击的过程，没时间的可以只看图哦！👇🏼

1️⃣ 漏洞引入：

这次官方升级不仅错误地暴露了关键的管理权限（transferOwnership 和 setImplementation 未受保护状态），还导致了新旧系统之间的小数点精度不匹配（18位 vs 8位）。

2️⃣ 攻击准备：

黑客利用上述精度漏洞，制造了一种特殊的期权产品。这种产品成本极低，但在系统错误的计算下，看起来价值连城。

3️⃣ 夺取权限：

攻击者利用“替罪羊”钱包（该钱包满足 tx.origin 的权限检查漏洞）发起交易，成功接管了预言机代理管理员（Proxy Admin）的控制权。

4️⃣ 循环攻击：重复此过程

- 改价：黑客拿到管理员权限，告诉系统：“现在这个资产价格是无穷大”。

- 提款：黑客拿着手里低成本的“假钞”（恶意期权）去兑现。系统按错误的高价，支付给黑客真正的 WETH 和 USDC。

- 掩护：提完款立刻把价格改回去，假装无事发生。

5️⃣ 洗钱跑路：

把偷来的钱打散，通过 Tornado Cash 洗白，消失在链上。

🌟 总结：所以说每次 #智能合约 的升级都必须要非常的谨慎！丝毫不可出错！❌

信息数据来源：rekt.news 🙏🏻

$2.7M DRAINED: Ribbon Exploit Is Live Right Now 🚨
The Ribbon DOV vault has been compromised. Attackers exploited an old, unpatched contract version, resulting in a massive $2.7 million loss. This is a critical security failure. The dev team is moving fast, pausing and disabling all affected vaults immediately. If you hold assets in $LUNA or $SOMI related vaults, check your positions NOW. Security first. 🔒
#DeFiSecurity #ExploitAlert #RibbonFinance #CryptoFUD
🛑

🚨 DeFi Shockwave: Ribbon Finance Hit by $2.7M Hack — What It Means for Crypto Users
Breaking reports reveal that Ribbon Finance, a well-known DeFi protocol, has suffered a security breach resulting in losses of approximately $2.7 million. The incident has sent ripples across the DeFi community and once again puts smart contract security under the spotlight.

What Happened?
According to early information, the attacker exploited a vulnerability within Ribbon Finance’s system, allowing unauthorized fund withdrawals. The team quickly detected the issue and paused affected operations to prevent further damage.

Immediate Response
Ribbon Finance acknowledged the incident publicly
Impacted contracts were secured
An internal investigation is underway
The team is working to trace the stolen funds and assess user impact

Why This Matters
Ribbon Finance has been a key player in structured DeFi products. A hack of this size:
Shakes user confidence

Raises concerns around smart contract audits
Reminds investors that DeFi still carries risk, even in established protocols
Bigger Picture for DeFi

This event is another reminder that:
Security remains the biggest challenge in DeFi
Risk management is crucial for users
Protocol transparency and fast response matter more than ever

What Users Should Do Now:

Stay alert, follow official updates, and always manage exposure wisely. DeFi offers innovation — but security awareness is non-negotiable.
👀 The market is watching closely. How Ribbon Finance handles the aftermath could define its future.
$RAY $SOL $ETH
#RibbonFinance

$RBN – Ribbon Finance: Passive Income for DeFi Users

RBN automates covered calls and structured products—crypto’s “options” simplified.
Earn yield without active management
Expanded to multiple chains
~$0.40, ATH ~$4

Crypto-native passive income is a narrative to watch.

#RBN #RibbonFinance #CryptoOptions #BinanceWrite2Earn