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

submitted 4 months ago* (last edited 4 months ago) by Aatube@kbin.melroy.org to c/technology@lemmy.world

190 comments fedilink hide all child comments

…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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[–] yokonzo@lemmy.world 16 points 4 months ago (2 children)

I'm not a dev, but don't they have like a/b updates or at least test their updates in a sandbox before releasing them?

[–] kalleboo@lemmy.world 18 points 4 months ago (1 children)

It could have been the release process itself that was bugged. The actual update that was supposed to go out was tested and worked, then the upload was corrupted/failed. They need to add tests on the actual released version instead of a local copy.

[–] FiniteBanjo@lemmy.today 0 points 4 months ago

Could also be that the Windows versions they tested on weren't as problematic as the updated drivers around the time they released.

[–] thermal_shock@lemmy.world 6 points 4 months ago

one would think. apparently the world is their sandbox.