RE: ISP reconfiguring cable modem?

From: David Schwendinger (dschwendinger_at_BlackbirdTech.com)
Date: 06/01/04

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    Date: Tue, 1 Jun 2004 09:44:12 -0400
To: <paul@myipis.com>, <security-basics@securityfocus.com>

    I think an equally important question besides the "is it technically
    possible" is: Is it or should it be legal for ISPs to reconfigure equipment
    belonging to its subscribers, let alone doing it without telling them about
    it?
     

    David T. Schwendinger

    -----Original Message-----
    From: Paul Kurczaba [mailto:paul@myipis.com]
    Sent: Thursday, May 27, 2004 3:12 PM
    To: security-basics@securityfocus.com
    Subject: ISP reconfiguring cable modem?

    On this ZDNet article
    (http://zdnet.com.com/2100-1107_2-5218720.html?tag=zdaresources), it
    mentions that to help prevent spam, comcast could remotely reconfigure the
    cable modem if it sees that user is sending out a bunch of spam. How is it
    possible to remotely configure the cable modem? Would it be a TCP/IP or
    cable signal that would reconfigure the modem? If it is TCP/IP, couldn't a
    hacker screw up the modem? If it is a cable signal, what happens if the
    cable user bought the modem at best buy or compusa (it wouldn't be ISP
    specific)

    -Paul Kurczaba

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