Ethereum liquidity provider XCarnival negotiates return of 50% stolen ETH
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According to blockchain investigator Packshield, the hacker used a previously withdrawn pledged NFT from the Bored Ape Yacht Club (BAYC) collection as collateral to drain the assets.
XCarnival, a liquidity provider for the Ethereum ecosystem, recovered 1,467 Ether (ETH) just a day after suffering an exploit that drained 3,087 ETH, worth roughly $3.8 million, from the protocol.
Blockchain investigator Peckshield noticed the XCarnival hack as it came across a stream of transactions that eventually bled 3,087 ETH from the protocol. Explaining the nature of the exploit, Peckshield stated:
“The hack is made possible by allowing a withdrawn pledged NFT to be still used as the collateral, which is then exploited by the hacker to drain assets from the pool.”
Soon after the revelation, XCarnival proactively informed the users about the hack while temporarily suspending a part of its services to counter the annoying attack. The protocol also offered the hacker 1,500 ETH as a bounty in addition to offering exemption from legal proceedings.
Eventually, XCarnival suspended the smart contracts and deposit and borrowing features until it could identify and rectify the internal bug that made the hack possible. According to Packshield, the hacker used a previously withdrawn pledged NFT from the Bored Ape Yacht Club (BAYC) collection as collateral to drain the assets.
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