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Re: APC UPS PowerChute PLUS exploit...
From: perry () NEWS VILL EDU (Rick Perry)
Date: Mon, 13 Apr 1998 12:11:39 -0400


Theo Schlossnagle <jesus () blaze cs jhu edu> writes:
The PowerChute PLUS software distributed with the UPSs provides a TCP/IP
(UDP/IP) way to communicate with (for monitoring) UPS on the local subnet.
It listens on port 6549 and listens for broadcast requests (UDP).
So if you make as if you are actually requesting information, but send it
the wrong packet... Well end of ./_upsd (the name of the daemon).

I believe that the powerchute software will not listen on the net if you
have the following in powerchute.ini

[ Network ]
 UseTCP = NO

I didn't yet try your exploit, but with UseTCP set to NO this machine doesn't
show up in the list of remote ups's when using the powerchute admin interface
from another machine on the same subnet.

...Rick         perry () ece vill edu, http://www.ece.vill.edu/~perry  [PGP]



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