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CrowdStrike downtime apparently caused by update that replaced a file with 42kb of zeroes (twiiit.com)

submitted 5 months ago* (last edited 5 months ago) by [email protected] to c/[email protected]

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…according to a Twitter post by the Chief Informational Security Officer of Grand Canyon Education.

So, does anyone else find it odd that the file that caused everything CrowdStrike to freak out, C-00000291-
00000000-00000032.sys was 42KB of blank/null values, while the replacement file C-00000291-00000000-
00000.033.sys was 35KB and looked like a normal, if not obfuscated sys/.conf file?

Also, apparently CrowdStrike had at least 5 hours to work on the problem between the time it was discovered and the time it was fixed.

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[–] [email protected] 2 points 5 months ago* (last edited 5 months ago) (1 children)

Years ago I read an study about insurance companies and diversification of assets in Brazil. By regulation, an individual insurance company need to have a diversified investment portfolio, but the insurance market as a whole not. the diversification of every individual company sum, as a whole of all the insurance market, as an was exposed market, and the researchers found, iirc, like 3 banks that if they fail they can cause a chain reaction that would take out the entire insurance market.

Don't know why, but your comment made me remind of that.