>>543I've never tried because I just assume I'll brick the cam. But it seems reasonable to think that if you just install a web based PHP or CGI shell (that you can hit via the current port) packaged in with the regular firmware or web UI then you'd be good to go.
The really hard part would be getting your hands on all of the manufacturer-specific firmware builds so it's not totally obvious to the cam owner when their shit gets "upgraded."
The oldest versions of the firmware are susceptible to even dumber directory traversal attacks. So targeting the CGI or even the Linux build on the cam might be other good avenues to explore.
I'm out of my depth on all of the above, though.