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Biggest DDoSes of all time generated by protocol 0-day in HTTP/2

Arstechnica

· 8m
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Threat actors recently carried out massive distributed denial-of-service (DDoS) attacks using a novel technique called HTTP/2 Rapid Reset, exploiting a vulnerability in the HTTP/2 protocol. These attacks were the largest in Internet history and reached unprecedented levels of intensity, peaking at 201 million requests per second. Despite the relatively small number of malicious machines involved, the attacks caused intermittent errors for legitimate users trying to connect to websites, exposing the menacing potential of this vulnerability. The HTTP/2 protocol, introduced in 2015, allowed for higher utilization of connections, making it attractive for DDoS attacks.

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