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posted by martyb on Friday March 02 2018, @12:46PM   Printer-friendly
from the quick-reaction dept.

GitHub has been hit with the largest-ever DDoS attack, and it was only down for a few minutes:

On Wednesday, February 28, 2018 GitHub.com was unavailable from 17:21 to 17:26 UTC and intermittently unavailable from 17:26 to 17:30 UTC due to a distributed denial-of-service (DDoS) attack.

[...] Cloudflare described an amplification vector using memcached over UDP in their blog post this week, "Memcrashed - Major amplification attacks from UDP port 11211". The attack works by abusing memcached instances that are inadvertently accessible on the public internet with UDP support enabled. Spoofing of IP addresses allows memcached's responses to be targeted against another address, like ones used to serve GitHub.com, and send more data toward the target than needs to be sent by the unspoofed source. The vulnerability via misconfiguration described in the post is somewhat unique amongst that class of attacks because the amplification factor is up to 51,000, meaning that for each byte sent by the attacker, up to 51KB is sent toward the target.

[...] Between 17:21 and 17:30 UTC on February 28th we identified and mitigated a significant volumetric DDoS attack. The attack originated from over a thousand different autonomous systems (ASNs) across tens of thousands of unique endpoints. It was an amplification attack using the memcached-based approach described above that peaked at 1.35Tbps via 126.9 million packets per second.

Also at Wired and The Register.


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  • (Score: 1, Offtopic) by VLM on Friday March 02 2018, @01:24PM (4 children)

    by VLM (445) on Friday March 02 2018, @01:24PM (#646331)

    How is it possible the site went down?

    I was told if they just stop hiring asians, whites, and males, that rainbows will spurt from the sky and unicorns will fly around?

    Its hard to imagine racism and sexism could have a cost in terms of operational quality and performance and results.

    To quote a sexist racist piece of trash who happens to be one of github's vice presidents: "Some of the biggest barriers to progress are white women."

    http://www.businessinsider.com/github-the-full-inside-story-2016-2 [businessinsider.com]

    The sooner github goes out of business the better the tech world will be.

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  • (Score: 0) by Anonymous Coward on Friday March 02 2018, @02:46PM (1 child)

    by Anonymous Coward on Friday March 02 2018, @02:46PM (#646384)

    please get trump to stop the IT outsourcing and I'll ride your rainbow.

    • (Score: 0) by Anonymous Coward on Friday March 02 2018, @03:02PM

      by Anonymous Coward on Friday March 02 2018, @03:02PM (#646395)

      Outsourcing makes American corporate profits great!

  • (Score: 0) by Anonymous Coward on Friday March 02 2018, @08:46PM

    by Anonymous Coward on Friday March 02 2018, @08:46PM (#646620)

    Your "oppression" might have more to do with your shitty personality and conspiracy-as-truth beliefs.

  • (Score: 2) by ants_in_pants on Saturday March 03 2018, @04:51AM

    by ants_in_pants (6665) on Saturday March 03 2018, @04:51AM (#646844)

    I don't get how this is at all relevant.

    It's kind of like neo-nazi primates scream "DA JOOS" at everything.

    --
    -Love, ants_in_pants