$SUI
《Sui Chain Shocking Crisis! A One-Line Code Vulnerability Exploited by Hackers, the Life-and-Death Race to Repair Millions in Assets Stolen》
Shock! Sui Chain has been hacked for a huge amount of assets due to a "one-line code"! The truth behind the repairs is revealed
⚠️ The blockchain world has once again been rocked by a security earthquake! The decentralized star project Sui Chain has been ruthlessly plundered by hackers due to a core code vulnerability, with millions in the pool turned to ashes! What kind of technical flaw is hidden behind what can be described as "the smallest avalanche in programming history"?
Hackers carefully constructed an input that, when the input meets the condition n <= mask, the program will enter the execution path at line 23 of the code. The critical turning point is that when the value of n is greater than or equal to 2¹⁹², executing the n << 64 bit shift operation will exceed the carrying limit of the u256 data type, ultimately causing the function output to deviate from its designed path, opening the door for theft.
💰 Before the incident: Known as the "next-generation high-performance decentralized blockchain," Sui was once highly favored by capital; After the incident: The official team urgently activated the asset freezing mechanism, becoming the first Layer 1 public chain to employ this function. Although the hacker's theft shocked the market, the rapid response from the Cetus official team earned respect in the industry.
The technical team completed the vulnerability repair and publicly released a patch at lightning speed, demonstrating a new standard for blockchain security through action. This crisis not only exposed the potential risks of smart contract programming but also highlighted the emergency capabilities of decentralized projects when facing security challenges, ringing a bell for technical security across the industry.
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