Carol Protocol Hack

Carol Protocol suffers flash loan exploit, resulting in a loss of $61,164 USD (29.92 ETH).

On November 30th, 2023, Carol Protocol, a project running on the Base chain, experienced a flash loan exploit due to a smart contract vulnerability. The root cause of this exploit was identified as manipulation of the stake amount. The contract's design flaw lies in its reliance on Uniswap Pair Balance to determine user balances, a metric that is susceptible to manipulation.

The stolen funds were distributed between multiple addresses and then transferred to another scammer's EOA. The total loss amounted to $61,164 USD, equivalent to 29.92 ETH.

Binance Smart Chain:

Attacker address:

https://basescan.org/address/0x5AA27D55…bC3144

Funds Holder as of Dec 14, 2023:

https://basescan.org/address/0xcDd37Ada…4A2af2

Malicious transactions:

https://basescan.org/tx/0xd962d397…b4185c

Malicious contract:

https://basescan.org/address/0xc4566ae9…780b2c