Decentralized U.S. greenback stablecoin protocol Raft claims that regardless of a number of safety audits, the agency nonetheless suffered a safety exploit resulting in the lack of $6.7 million final week.
In keeping with the venture’s Nov. 13 autopsy report, a number of days prior, a hacker borrowed 6,000 Coinbase-wrapped staked Ether (cbETH) on decentralized finance protocol Aave, transferred the sum to Raft, and minted 6.7 million Raft stablecoin, dubbed “R,” utilizing a wise contract glitch.
The unauthorized minted funds had been then swapped off the platform by liquidity swimming pools on decentralized exchanges Balancer and Uniswap, netting $3.6 million in proceeds. The R stablecoin depegged after the assault.
In keeping with the report:
“The first root trigger was a precision calculation concern when minting share tokens, which enabled the exploiter to acquire further share tokens. The attacker leveraged the amplified index worth to extend the price of their shares.”
The good contracts exploited throughout the incident had been audited by blockchain safety companies Path of Bits and Hats Finance. “Sadly, the vulnerabilities that led to the incident weren’t detected in these audits,” Raft builders wrote.
The venture says that because the Nov. 10 incident it has filed a police report and is at present working with centralized exchanges to trace down the move of the stolen funds. All Raft’s good contracts are at present suspended, although customers who minted R “retain the power to repay their positions and retrieve their collateral.”
Decentralized stablecoins are minted utilizing customers’ crypto deposits as collateral. Final December, decentralized stablecoin HAY depegged in opposition to the U.S. greenback after a hacker took benefit of a wise contract glitch and minted 16 million HAY with out correct collateral. The HAY stablecoin has since re-pegged, partially, as a result of protocol requiring a collateralization ratio of 152% on the time of exploit as a part of danger administration.
We’re conscious of a possible safety vulnerability.
We’re at present investigating and can present an replace as quickly as we will.
— Raft (@raft_fi) November 10, 2023
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