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Comcast remotely factory reset my modem - HOW? HACKED?

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Comcast remotely factory reset my modem - HOW? HACKED?

Comcast took an outage for 2 hours. The phone prompts admitted this fact by going straight to a prompt telling when they expected it back up.

After it came backup, my modem had been reset back to the factory settings.

How can they do this remotely?

I thought it could only be done by the pinhole resest button.

This blows my entire security protocol knowing the modem can be hacked.

Any thoughts?

Expert

Re: Comcast remotely factory reset my modem - HOW? HACKED?

FWIW, "hacked" is a subjective word.

 

They can use the SNMP protocol to backdoor in to their gateway devices for the purposes of remote management.

Contributor

Re: Comcast remotely factory reset my modem - HOW? HACKED?

If you read the specifications of the DOCSIS protocol, (I read it in its entirety back when 2.0 was current), you will find that a fundamental principle on which it it is built is that the ISP has *full* control over the Customer Premises Equipment.

- The ISP controls what firmware is loaded. 

- The ISP controls what configuration file is loaded.

- The ISP can reboot it if they want.

 

If this is not acceptable, then DOCSIS is not for you.

Expert

Re: Comcast remotely factory reset my modem - HOW? HACKED?

True but it's not just DOCSIS. The Verizon FiOS FTTH provider can also backdoor in to their devices using SNMP for remote management purposes. SNMP is not method of transport specific.