On 6/02/2010, at 1:43 PM, Jorge Amodio wrote: <snip> > fired nmap, tried several 10/24 networks and just playing by hand > found hundreds of devices and every single one I tried default password > it worked, not only modems, also modem/routers and some with > integrated VoIP where if I wanted I would have been able to change > provisioning configuration, channel scanning, browse through the call > manager logs and see who's calling or being called, etc. > > Isn't this a huge security hole ? > > It wont take much for a kiddie to write a very simple script to drive > crazy the noc guys taking down pieces of the network here and there ... > > If a grownup from TWC/RR wants to get more specifics feel free to > contact me. > > Regards
Yes this is a huge security hole. Management networks should always be restricted to some extent and the fact that default passwords allow you into VoIP gateways provides an avenue for call fraud. At a very minimum the devices should restrict which addresses can talk to them (ie. management servers in the MSO) and passwords should be non-default. Maybe you can consult with the local MSO? Kind regards, Truman
