North American Network Operators Group

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Re: router damaged by cracker?

  • From: Deepak Jain
  • Date: Thu Oct 12 12:45:21 2000

By the way that article reads, I would guess the attack was not
exceptionally sophisticated. (Everyone's definition of sophisticated is

If one removed the config-reg (or renamed it) function on a small Cisco's
firmware one could quite effectively change the passwords and make it
difficult for a not very technical group of admins to take it back.

Since there is talk about moving their main router behind a firewall, my
guess is that they are using a routing appliance rather than any
sophisticated routing hardware. The $18,000 replacement is probably for a
different vendor, not because the hardware has lost function.

This is all wild conjecture because I haven't seen any alerts from vendors
in their normal channels. :)

Deepak Jain

On Thu, 12 Oct 2000, Kai Schlichting wrote:

> If we assume that the router mentioned in the following cracking incident
> is a popular model we all use: what other than zapping the FlashROM could
> this attacker have done? We all know that <big popular vendor>'s firmware
> source code has hit the pirate BBS's a year or two back : could someone have
> compiled a rogue image that can actually fry some router components (I can
> think of plenty of nasty things with serial ports transmitting too fast
> for their own good - and burn the driver chips) ?