A hacker exploited a bug in a newly launched gaming token on Blast community — Tremendous Sushi Samurai — to steal roughly $4.6 million value of Ethereum on March 21 — lower than a month from its launch.
The exploit resulted in an roughly 99% slippage within the token’s worth following an unauthorized token dump. The attacker extracted 1310 ETH from the token’s major liquidity pool by doubling their stability repeatedly after which promoting all of it, in keeping with the main points Certik shared with CryptoSlate.
Tremendous Sushi Samurai was scheduled to launch its web3 sport on the identical day. The incident could have been carried out by a white hat hacker presently in contact with the Tremendous Sushi Samurai staff. Nevertheless, the main points are unclear as of press time.
Duplication bug
Investigations into the incident revealed that an unauthorized occasion acquired 690 million SSS tokens and subsequently initiated a sequence of transactions by way of an assault contract particularly designed for this function.
By exploiting a vulnerability inside the platform’s _update() perform, the attacker was capable of duplicate the tokens of their possession 25 occasions. This manipulation inflated the token amount to 11.5 trillion, which was finally exchanged for about 1,310 ETH, equal to round $4,590,827.
The exploit leveraged a flaw within the good contract’s stability replace mechanism, which did not precisely mirror the modifications when tokens have been transferred to the identical handle. This oversight enabled the exponential enhance within the attacker’s token stability with out official transactions.
In February, the identical bug was used to use an Ethereum-based token known as MINER. The hack resulted in a lack of 168.8 ETH.
Restoration efforts
Following the breach, Tremendous Sushi Samurai has engaged with its group, offering updates and assurances by way of its official Telegram channel and different social media platforms.
The staff stated it’s making an attempt to contact the exploiter, and the newest tweet from the gaming platform signifies a white hat hacker has reached out concerning the incident. Nevertheless, it’s unclear whether or not the white hat is chargeable for the exploit or serving to get better the funds as of press time.
Tremendous Sushi Samurai stated:
“We’re working with the white hat on the secure return of funds. An replace and autopsy will observe.”
The handle containing the compromised funds has been publicly disclosed in an effort to facilitate the monitoring and potential restoration of the misplaced belongings:
“0x786C8f95C17BB990a040dc4D6539B01FC1b72842”
The staff’s communication efforts goal to maintain stakeholders knowledgeable concerning the incident’s developments and the measures to deal with the safety vulnerability.
This incident highlights the important significance of strong safety protocols within the crypto sector, the place the digital nature of belongings makes them weak to such exploits. It additionally highlights platforms’ ongoing challenges in safeguarding towards subtle cyber threats.