• AutoTL;DRB
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    English
    11 year ago

    This is the best summary I could come up with:


    Cloudflare, Google, and Amazon all say they successfully mitigated what two of the companies called the biggest DDoS layer 7 attacks they’ve recorded in August and September, though none said who the attacks were directed against.

    The companies say the attacks were possible because of a zero-day vulnerability in the HTTP/2 protocol they’ve named “HTTP/2 Rapid Reset.”

    HTTP/2 speeds up page loading by allowing for multiple simultaneous requests to a website over a single connection.

    Cloudflare writes that these attacks apparently involved an automated cycle of sending and immediately canceling “hundreds of thousands” of requests to websites that use HTTP/2, overwhelming servers and taking them offline.

    A group called Anonymous Sudan claimed credit for both attacks.

    Google goes into detail in a blog post about how the attacks worked, so do head over there if you want to roll your sleeves up and read about it.


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