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Backdoor found in Linksys, Netgear Routers

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Re: Backdoor found in Linksys, Netgear Routers

#6
I hacked my Fritz!Box (yeah, a bad name for a german router) and I'm entirely sure that it has a backdoor integrated too. That's why I wiped and flashed it with an alternative image. That and the Telecom's Speedport router are the most popular routers by far in Germany. And both have backdoors, I know that other router manufacturers also integrate backdoors from a source who works at such a company. A friend can also verify the fact, because a different employee told him the same. Also it's public that the ISP can upgrade, modify, flash and disable features remotely. My friend's router has wifi, but their provider disabled it remotely within the firmware (it even has an antenna) and his ISP wants him to pay 5€/m to re-enable wifi.

I really wonder why nobody complained about that earlier. Also the interesting thing here is that for a very long time, you weren't allowed to use a different router than the one provided by your ISP. Which enforced their surveillance monopoly.

Here's an article about reverse engineering the backdoor in D-Link routers using IDA:

http://www.devttys0.com/2013/10/reverse-engineering-a-d-link...

PoC Available: http://pastebin.com/vbiG42VD

Re: Backdoor found in Linksys, Netgear Routers

#9
post #3

TIL: Some people know a lot more than me about hacking. That PDF was interesting, but I only understood a small fraction of it.

That may be because it was smothered in dumb memes and jokes.

I actually appreciate the humor, but I'm in the same boat where there's a good portion I'm just not wrapping my head around clearly. I'd love if someone made an annotated version with technical descriptions.
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