I would hope that this router's admin "password" interface is only accessible from the LAN side. It's not listening to the world for a login with "password", right? Have you port scanned its WAN interface and tried connecting to it to see what's listening?
This is bad, yes, but not utterly catastrophic. Generally in a situation where somebody has physical access to a home Netgear/Linksys/TP-Link/whatever type router, they could physically push the factory reset button and gain access to its admin interface to reconfigure it however they wanted anyways. I think there's a value for discussion in nanog about how to provision and set up residential last mile services that work right, but this isn't exactly a wider spread network operational issue unless you've discovered thousands of CPEs that can be accessed by "password" from the outside Internet. On Tue, Feb 7, 2023 at 6:18 AM TACACS Macaque via NANOG <nanog@nanog.org> wrote: > Hi, > > Long time lurker, first time poster. Sorry in advance if this is the wrong > forum for something like this. > > My mom's ISP (Yondoo) seems to be providing DOCSIS 3.1 CPE (Customer > Premises Equipment) with a built-in router, without providing the ability > to change the admin password from "password" on it. > > [image: Screenshot 2023-02-03 at 9.49.15 PM.png] > > [image: Screenshot 2023-02-03 at 9.51.51 PM.png] > > Their customer service rep said that this is not only WAI, but also wanted > to charge her $50 to have a tech come out and change it. Which is obviously > less than ideal. > > That aside, this seems like a pretty egregious security standard which, > from my understanding, can have fairly dire security implications... e.g., > DNS server settings can be pointed at whatever someone wants here. > > My mom is elderly and had already fallen victim to a call center scammer a > couple years ago. They briefly took control over her laptop before she > called for backup. So I'm just a little concerned that we have no control > over changing this router's admin password — from “password” — in a pinch, > without waiting for a truck roll && shelling out $50. > > I've sent her a DOCSIS 3.1 modem that doesn't have a router built-in, in > hopes that they'll let us bring our own. She does have Google Wifi, but we > can't even put their router into bridge mode. So she would be double NATed > *and* have no control over changing the admin password on the first > router. > > Anyone have any experience with Yondoo? I've tried reaching out to them on > multiple fronts, but have yet to hear back from them on this. A tech is > scheduled to come out tomorrow, so the plan is to beg (bribe?) them to let > us use our own modem and then take it from there. > > Thanks, > Todd >
