I own a
D-Link DCS-7110 HD POE network camera.
It features an apparently
iptables based access list configuration where you can allow/disallow certain networks and addresses from accessing the camera.
I accidentally disabled access for everyone, thus can not acces it at all anymore. It boots, get's an ip-address from my dhcp and just sits there, shielded from the outside world.
I have already tried changing my dhcp server to provide an address from a different network, in the hope I had just disabled access for my own network, but it seems I disabled it for all networks. Good job.
Unfortunately the camera is installed about 10m over ground and I can not easily access it at all.
I have not found information about a known vulnerability in the network stack of the firmware, but I wonder if there would be one which could allow me to exploit to disable
iptables and get access to it again.
I managed to extract the firmware binary, but have not spent much time analyzing it. It seems to use a Linux kernel 2.6.
Does anyone have an idea on how to proceed? Otherwise I should prepare myself to rent a cherry picker to be able to reach the camera and do a factory reset.