Comment by codingdave
17 hours ago
The author doesn't really claim it was a hack, just that it is a possibility. But they are charging down the path of the potential hack before asking the more obvious question: How many refrigerators exist in the military at all? And of those, how many are having problems?
Because a half dozen a day sounds plausible as standard maintenance issues, as the author acknowledges. If it were a hack, I'd expect something like 50% of them to have problems. But not knowing how many there are, I don't know how significant these incidents really are.
They are charging down that path because vulnerabilities that effect the refrigerators were disclosed the same day as 14 refrigerators failed in an absurd way. They all turned on the defrost cycle and heated the food.
The problem is the author should have put a few concise bullet points at the top. (14 freezers failed at the same time. They are all internet-controlled, and failed at the same time as a disclosure about a vulnerability. They all failed by turning on the defrost cycle and heating food.)
I really recommend skimming the article to the end.
(Unfortunately, the article really is so verbose it's a borderline rant.)
Obvious sabotage would be addressed promptly. Subtle sabotage could persist as a minor torment indefinitely.
Stuxnet was a good example of that.
The article has a post that says this happened across 14 bases at the same time.
Then I would suspect that this is either down to the common control system, or there has been a batch failure of the controllers in the freezers that were presumably ordered and supplied at the same time.
I've seen batch failures in radio equipment where I could predict 100% accurately which devices would fail based on the range of serial numbers.
There are a couple hundred US armed forces bases each with commissaries that would be managed by DeCA.
An attack like the author hypothesized would require a LOTL modus operandi, and doing so on 14 locations wouldn't justify completely blowing up an entire LOTL operation, because it exposes indicators, registers, and tradecraft that is then shared amongst all security vendors.
The way it's framed is clickbait at its worst with the added issue of limited security experience, but the same can be said of HN in general.
Or someone somehow got into one web interface (e.g. by popping a random workstation used to monitor all these sites) and clicked buttons.
So what's the denominator? Every base has some kid of refrigerator, and there must be 100s-1000s of bases.
OTOH how many bases are effected and we didn't hear about it? Those 14 bases are only the ones we know about.
Not just any failure, specifically heating the food (defrost) so it goes bad. Happening overnight, so it wouldn't be caught before it's too late.
All that could still be a coincidence, but the more coincidences start to pile up the more we have to consider other possibilities too. I do agree it would be unusual to 'waste' a vuln like that, but perhaps the implant/CVE was about to be exposed anyway.
Interesting times...
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> I learned that commissaries (of which there are ~235 worldwide) aren’t actually independently operated by whatever military installation or base they happen to sit on.
according to the article, the denominator is ~235.
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