Cream Finance’s DeFi platform suffers a $19 million loss as a result of a flash loan hack.

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Cream Finance’s hacker made $18.8 million by exploiting a reentrancy weakness in the AMP token in 17 transactions.

Cream Finance, a significant decentralised finance (DeFi) system focusing on lending, was hit by a major theft, with a hacker taking approximately $19 million from its site.

An unknown hacker has managed to gain $18.8 million in the latest flash loan exploit of the Cream Finance protocol through a reentrancy bug introduced by the Amp token, according to an investigation by blockchain security firm PeckShield.

Announcing the news Monday, Cream Finance said that the protocol has stopped the exploit by pausing supply and borrow contracts on the Amp token. “No other markets were affected,” Cream Finance stated.

PeckShield specified that the hacker exploited the Amp token by reborrowing assets during its transfer before updating the first to borrow in 17 separate transactions. Providing an example transaction, the security firm stated, “The hacker makes a flashloan of 500 ETH and deposit the funds as collateral. Then the hacker borrows 19M $AMP and makes use of the reentrancy bug to re-borrow 355 ETH inside $AMP token transfer. Then the hacker self-liquidates the borrow.”

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“The funds are still parked in 0xCE1F….6EDE. We are actively monitoring this address for any movement,” PeckShield added, providing the hacker’s address.

Amp is an Ethereum-based token that is designed to collateralize payments on the digital payments network Flexa. The Amp token contract implements ERC-77-based registry smart contract known as ERC-1820. Introduced in 2019, the ERC-1820 standard defines a universal registry smart contract where any address “can register which interface it supports and which smart contract is responsible for its implementation.”

Following the attack, both the Amp token and Cream Finance’s native token, CREAM, saw a notable price drop, with Amp plummeting nearly 13% over the past 24 hours. At the time of writing, the Amp token is trading at $0.051908, while the CREAM token is trading at $167, down around 5% over the past 24 hours, according to data from CoinGecko.

As previously reported by Cointelegraph, DeFi product Alpha Homora was hacked for $37 million in February, utilising Cream’s Iron Bank protocol-to-protocol lending mechanism.

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The latest flash loan exploit adds to the growing number of hacks and exploits on both centralised and decentralised cryptocurrency platforms. On Saturday, the Bilaxy cryptocurrency exchange was hacked, resulting in the compromise of 295 ERC-20 tokens. Liquid lost over $100 million in a breach on August 19.


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