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 primary liquidity pool by doubling their steadiness repeatedly after which promoting all of it, in response to the main points Certik shared with CryptoSlate.
Tremendous Sushi Samurai was scheduled to launch its web3 sport on the identical day. The incident might have been performed by a white hat hacker currently in touch with the Tremendous Sushi Samurai staff. Nonetheless, the main points are unclear as of press time.
Duplication bug
Investigations into the incident revealed that an unauthorized social gathering acquired 690 million SSS tokens and subsequently initiated a sequence of transactions by means of an assault contract particularly designed for this goal.
By exploiting a vulnerability throughout the platform’s _update() perform, the attacker was in a position to duplicate the tokens of their possession 25 occasions. This manipulation inflated the token amount to 11.5 trillion, which was ultimately exchanged for about 1,310 ETH, equal to round $4,590,827.
The exploit leveraged a flaw within the good contract’s steadiness replace mechanism, which didn’t precisely mirror the modifications when tokens had been transferred to the identical deal with. This oversight enabled the exponential improve within the attacker’s token steadiness with out reputable transactions.
In February, the identical bug was used to take advantage of 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 neighborhood, offering updates and assurances by means 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 in regards to the incident. Nonetheless, it’s unclear whether or not the white hat is accountable 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 protected return of funds. An replace and autopsy will comply with.”
The deal with containing the compromised funds has been publicly disclosed in an effort to facilitate the monitoring and potential restoration of the misplaced property:
“0x786C8f95C17BB990a040dc4D6539B01FC1b72842”
The staff’s communication efforts intention to maintain stakeholders knowledgeable in regards to the incident’s developments and the measures to handle the safety vulnerability.
This incident highlights the crucial significance of strong safety protocols within the crypto sector, the place the digital nature of property makes them weak to such exploits. It additionally highlights platforms’ ongoing challenges in safeguarding in opposition to refined cyber threats.