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Critical Exploit in MediaTek Wi-Fi Chipsets: Zero-Click Vulnerability

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61–70 of 109 posts

Re: Critical Exploit in MediaTek Wi-Fi Chipsets: Zero-Click Vulnerability

#61
post #60

> The affected versions include MediaTek SDK versions 7.4.0.1 and earlier, as well as OpenWrt 19.07 and 21.02. > The vulnerability resides in wappd, a network daemon included in the MediaTek MT7622/MT7915 SDK and RTxxxx SoftAP driver bundle. OpenWRT doesn't seem to use wappd though?

As a contributor to OpenWrt it makes me wonder why don't people differentiate between OpenWrt and various proprietary vendor SDKs. No one would have referenced Fedora if there was a bug in Nobara.

Re: Critical Exploit in MediaTek Wi-Fi Chipsets: Zero-Click Vulnerability

#62

Earlier quoted context omitted.

The consumer space is brutally competitive - you're working on tight margins and designs become obsolete very quickly. MediaTek's business is built on selling chips with the latest features at the lowest possible price. Everything has to be done at a breakneck pace that is dictated by the silicon. You start writing firmware as soon as the hardware design is finalised; it needs to be ready as soon as the chips are rea…

Intel networking used to have the expensive and works traits. Not confident their current products would be as good.

Indeed. A friend who is more plugged into such things me told me 4-5 years ago they laid off most of the senior Intel network driver team. Basically the only edge they had. I can’t imagine things are any better these days.

Inertia is a hell of a thing, but you are starting to see the cracks form. I just don’t know if there is an alternative.

Re: Critical Exploit in MediaTek Wi-Fi Chipsets: Zero-Click Vulnerability

#63

I've been buying laptops with AMD CPU's but they always come with these trash MediaTek RZ616 Wi-Fi cards, why is that? I've been replacing them with Intel Wi-Fi cards, now I have a pile of RZ616 cards ready to become future microplastics :-(

Intel sells two versions of their WiFi cards: ones ending in 1 use CNVI protocol and work only with Intel chips. These are sold really cheap to OEMs; ones ending in 0 use standard PCIe and are sold to OEMs for ~$10 more.

AMD decided to brand Mediatek's MT7921 and MT7922 as RZ608 and RZ616 to have something to sell to OEMs at the same price point as Intel's xx1 chips.

Re: Critical Exploit in MediaTek Wi-Fi Chipsets: Zero-Click Vulnerability

#64

The wording of the headline is a bit misleading here. I followed the link thinking it might be a firmware or silicon bug as I have a couple of routers at home with mt76 wifi, but was relieved to find it's just a bug in the vendor's 'sdk' shovelware. I'm baffled that anyone even thought about using that, given there's such good mt76 support from mainline kernels with hostapd.

> relieved to find it's just a bug in the vendor's 'sdk' shovelware

Vendors plural to worry about:

“…driver bundles used in products from various manufacturers, including [but not limited to] Ubiquiti, Xiaomi and Netgear.”

That said, vendors (plural) say no products use this, e.g. Ubiquiti:

https://community.ui.com/questions/CVE-2024-20017/b3f1a425-d...

Re: Critical Exploit in MediaTek Wi-Fi Chipsets: Zero-Click Vulnerability

#65
post #60

> The affected versions include MediaTek SDK versions 7.4.0.1 and earlier, as well as OpenWrt 19.07 and 21.02. > The vulnerability resides in wappd, a network daemon included in the MediaTek MT7622/MT7915 SDK and RTxxxx SoftAP driver bundle. OpenWRT doesn't seem to use wappd though?

Came here wondering this, as I have several Netgear APs running OpenWRT on my home network. Sounds like I'm in the clear?

Re: Critical Exploit in MediaTek Wi-Fi Chipsets: Zero-Click Vulnerability

#66

Earlier quoted context omitted.

The consumer space is brutally competitive - you're working on tight margins and designs become obsolete very quickly. MediaTek's business is built on selling chips with the latest features at the lowest possible price. Everything has to be done at a breakneck pace that is dictated by the silicon. You start writing firmware as soon as the hardware design is finalised; it needs to be ready as soon as the chips are rea…

Intel networking used to have the expensive and works traits. Not confident their current products would be as good.

When? The Intel X710 series of network cards was released in 2014, and it wasn't until ~2018 that it became actually usable (end of 2018? I don't recall really, but when I stumbled upon it it had already been a public problem for more than a year, and it took a few more months for patches to come).

I'm talking things like full OS crashes while doing absolutely nothing, no traffic whatsoever or even better, silently starting to drop all network traffic (relatively silently, just an error message in the logs, but otherwise no indication, the interface still shows up as fine and up in the OS). It was all a driver issue (although both Intel drivers didn't work, so not only) that was later fixed.

After that, it was rock solid. But the fact that there was a high class network card sold for lots of money, on hardware compatibility lists at various vendors, which didn't work at all for pretty much everyone for more than a few years is disgusting.

Re: Critical Exploit in MediaTek Wi-Fi Chipsets: Zero-Click Vulnerability

#67
post #7

i still cannot fathom why in this day and age where people buy any silicon that's available, these C tier vendors don't adopt the PC strategy and completely open their firmwares for open source community.

FCC regulations around not making it easy to transmit outside of the licensed band tend to cause this.

that point is completely bogus since hardware oscillators limit the range. and even multi range devices let the driver decide the region, so even with closed source you can already offend fcc regulations (pro tip set your wifi region to cuba for extra channels)

Re: Critical Exploit in MediaTek Wi-Fi Chipsets: Zero-Click Vulnerability

#68

Earlier quoted context omitted.

FCC regulations around not making it easy to transmit outside of the licensed band tend to cause this.

Making the code available doesn’t necessarily mean that you can actually flash the image since it can be cryptographically locked down. Or even you support flashing but only let you do certain trusted operations from a signed image.

you managed to completely miss the point.

going the pc route is fully embracing your hardware accept whatever software the user wants. not throw unbuildable source somewhere and make it impossible to use. that's the faux open source we have today when someone must comply with the gpl or something

Re: Critical Exploit in MediaTek Wi-Fi Chipsets: Zero-Click Vulnerability

#69

Earlier quoted context omitted.

Why is it so much of this hardware/firmware feels so much like deploying a PoC to production? Why can't they hire someone that actually knows what they are doing?

The consumer space is brutally competitive - you're working on tight margins and designs become obsolete very quickly. MediaTek's business is built on selling chips with the latest features at the lowest possible price. Everything has to be done at a breakneck pace that is dictated by the silicon. You start writing firmware as soon as the hardware design is finalised; it needs to be ready as soon as the chips are rea…

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