From: Dario Ciccarone (dciccaro) (dciccaro@cisco.com)
Date: Sun Dec 04 2005 - 16:47:48 EST
>
> > For instance, I have a few IP cameras around my
> infrastructure... If
> > I add a static ARP entry for the MAC to some arbitrary IP
> (that's still on
> > my subnet) I can use that arbitrary IP to access the unit's HTTP
> > configuration... works just fine.
>
> You're lucky to be facing theses non RFC compliant devices :)))
Agree with Cedric here. Which opens another issue: say your device
assigned IP address is 1.2.3.4, MAC A, and the device also allows you to
configure access control based on IP address - this would probably allow
you to bypass those controls.
But - iff the IP stack is so dumb, which source address does it use to
reply? The real IP address configured on its interface? Or it just swaps
SRC/DST on the original packet? That would allow 2-way communications.
Guess it works on Axis cameras at least, if you're able to do the 3-way
and actually configure them ;)
Dario
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