From: Cristian Stoica (security@netcms.biz)
Date: Mon Feb 13 2006 - 10:09:15 EST
Hi,
I've did some tests( DoS ) with cable modems and I've notice the
following problem:
running nmap on the management ip address of the cable modem
resulted into a response of the modem of about 3-5 s not ms and the
network behind the modem was unable to use the internet.
I've used no special options for nmap, simply running nmap
ip_address had that result.
I've tested with Scientific Atlanta, Thomson, RCA modems and none
reacted that way.
I think that this is an easy DoS for Motorola cable modems, that can
be started from inside the network also aginst the ip 192.168.100.1 (
the standard management ip address for docsis cable modems ).
Anyone else had this problem ?
Beside restricting access to the vlan with the management address is
there any other things that can be done ?
Best regards,
Cristian Stoica
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