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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

186 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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[–] Angry_Autist@lemmy.world 0 points 4 months ago (1 children)

It makes me so fuckdamn angry that people make this assumption.

This Crowdstrike update was NOT pausable. You cannot disable updates without disabling the service as they get fingerprint files nearly every day.

[–] lando55@lemmy.world 1 points 4 months ago (1 children)

I hear you, but there's no reason to be angry.

When I first learned of the issue, my first thought was, "Hey our update policy doesn't pull the latest sensor to production servers." After a little more research I came to the same conclusion you did, aside from disconnecting from the internet there's nothing we really could have done.

There will always be armchair quarterbacks, use this as an opportunity to teach, life's too short to be upset about such things.

[–] Angry_Autist@lemmy.world 0 points 4 months ago

It doesn't help that I'm medically angry 80% of the time for mostly no reason, but even without that this would incense me because I've had 40+ users shouting similar uneducated BS at me yesterday thinking that it was personally my fault that 40% of the world bluescreened. No I am not exaggerating.

I have written and spoken phrases 'No we could not prevent this update' so many times in the last 24 hours that they have become meaningless to me through semantic satiation.