The hacker who hacked the Crema Finance liquidity protocol on the Solana blockchain decided to return most of the funds. He transferred $8 million to the developers, but kept a “bounty” of $1.6 million for himself.
The developers agreed with the hacker on the so-called “reward for the discovery of a vulnerability.” At the same time, the developers initially offered a reward of $800,000, but the cracker did not agree. Then the amount was increased to $1.6 million.
“After much negotiation, the hacker agreed to accept 45,455 SOL coins as a reward. We have now confirmed receipt of 6,046 ETH and 23,967.9 SOL in four transactions. We are preparing a plan to recover losses to our investors and users and will present it within 48 hours,” Crema Finance representatives wrote.
The hacker returned the funds on the Ethereum and Solana networks, respectively. The first transaction on each network was a trial, and then the main funds were transferred to the developers.
Representatives of Crema Finance noted that they had already prepared a fix for the vulnerability and now the code is being checked by an audit firm. After the update, the vulnerability will be closed and such an attack will be impossible.
Recall that the hacker used the Claim and WithdrawAllTokenTypes functions of the smart contract at the same time, which allowed him to get more funds than he had originally invested.
Source: Bits
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