3COM OfficeConnect HTTP Port Router Denial of Service Vulnerability

OfficeConnect 812 is a DSL router manufactured by 3Com, and distributed by numerous DSL providers. OfficeConnect 812 is an integrated ADSL router with an onboard 4 port switch.

A problem in the firmware included with this router could allow a Denial of Service. It is possible to reboot the router by connecting to the HTTP daemon, and requesting a long string. The router will power-cycle itself.

This problem makes it possible for a remote user to deny service to legimate users of networks serviced by the router.


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