Linux

decades of IT experience

Do any changes - especially upgrades - on local test environments before applying them in production?

The scary bit is what most in the industry already know: critical systems are held on with duct tape and maintained by juniors 'cos they're the cheapest Big Money can find. And even if not, There's no time. or It's too expensive. are probably the most common answers a PowerPoint manager will give to a serious technical issue being raised.

The Earth will keep turning.

This is just like "what not to do in IT/dev/tech 101" right here. Every since I've been in the industry for literally decades at this point I was always told, even when in school, "Never test in production, never roll anything out to production on a Friday, if you're unsure have someone senior code review" of which, Crowdstrike, failed to do all of the above. Even the most junior of junior devs should know better. So the fact that this update was allowed go through...I mean blame the juniors, the seniors, the PM's, the CTO's, everyone. If your shit is so critical that a couple bad lines of poorly written code (which apparently is what it was) can cripple the majority of the world....yeah crowdstrike is done.

It's also a "don't allow third party proprietary shit into your kernel" issue. If the driver was open source it would actually go through a public code review and the issue would be more likely to get caught. Even if it did slip through people would publically have a fix by now with all the eyes on the code. It also wouldn't get pushed to everyone simultaneously under the control of a single company, it would get tested and packaged by distributions before making it to end users.

They didn’t even bother to do a gradual rollout, like even small apps do.

The level of company-wide incompetence is astounding, but considering how organizations work and disregard technical people’s concerns, I’m never surprised when these things happen. It’s a social problem more than a technical one.

A crowdstrike update killed a bunch of our Linux VMs that had a newer kernel a month or so ago.

Hate to break it to you, but CrowdStrike falcon is used on Linux too...

Hate to break it to you, but most IT Managers don't care about crowdstrike: they're forced to choose some kind of EDR to complete audits. But yes things like crowdstrike, huntress, sentinelone, even Microsoft Defender all run on Linux too.

I wouldn't call Crowdstrike a corporate spyware garbage. I work as a Red Teamer in cybersecurity, and EDRs are bane of my existence - they are useful, and pretty good at what they do. In the last few years, I'm struggling more and more to with engagements we do, because EDRs just get in the way and catch a lot of what would pass undetected a month ago. Staying on top of them with our tooling is getting more and more difficult, and I would call that a good thing.

I've recently tested a company without EDR, and boy was it a treat. Not defending Crowdstrike, to call that a major fuckup is great understatement, but calling it "corporate spyware garbage" feels a little bit unfair - EDRs do make a difference, and this wasn't an issue with their product in itself, but with irresponsibility of their patch management.

Feel you there. 4 hours here. All of them cloud instances whereby getting acces to the actual console isn't as easy as it should be, and trying to hit F8 to get the menu to get into safe mode can take a very long time.

Yep pretty much but on a larger scale.

1st please do not believe the bull that there was no problem. Many folks like me were paid to fix it before it was an issue. So other than a few companies, few saw the result, not because it did not exist. But because we were warned. People make jokes about the over panic. But if that had not happened, it would hav been years to fix, not days. Because without the panic, most corporations would have ignored it. Honestly, the panic scared shareholders. So boards of directors had to get experts to confirm the systems were compliant. And so much dependent crap was found running it was insane.

But the exaggerations of planes falling out of the sky etc. Was also bull. Most systems would have failed but BSOD would be rare, but code would crash and some works with errors shutting it down cleanly, some undiscovered until a short while later. As accounting or other errors showed up.

As other have said. The issue was that since the 1960s, computers were set up to treat years as 2 digits. So had no expectation to handle 2000 other than assume it was 1900. While from the early 90s most systems were built with ways to adapt to it. Not all were, as many were only developing top layer stuff. And many libraries etc had not been checked for this issue. Huge amounts of the infra of the world's IT ran on legacy systems. Especially in the financial sector where I worked at the time.

The internet was a fairly new thing. So often stuff had been running for decades with no one needing to change it. Or having any real knowledge of how it was coded. So folks like me were forced to hunt through code or often replace systems that were badly documented or more often not at all.

A lot of modern software development practices grew out of discovering what a fucking mess can grow if people accept an "if it ain't broke, don't touch it" mentality.

While that is true, it makes sense for antivirus/edr software to run in kernelspace. This is a fuck-up of a giant company that sells very expensive software. I wholeheartedly agree with your sentiment, but I mostly see this as a cautionary tale against putting excessive trust and power in the hands of one organization/company.

Imagine if this was actually malicious instead of the product of incompetence, and the update instead ran ransomware.

i hope you get overtime!

Don't worry, George Kurtz (crowdstrike CEO) is unavailable today. He's got racing to do #04 https://www.gt-world-challenge-america.com/event/95/virginia-international-raceway