Handspring Visor Network HotSync Security Hole

[JCA () BIGCHARTS COM (Jay C Austad)]

If you have Network HotSync (provided on the CD that comes with your Visor) enabled on your machine, and a malicious 
user knows your name (ex. John Smith), and the ip of your machine (ex. 192.168.22.22, or jsmith.company.com), he can 
change the name on his Visor to yours, do a Network hotsync with your ip, and download all of your email, send email as 
you, and perform any function that you can.

There is no password or authentication of any kind.  If I wanted to read my co-workers email, or send a nasty message 
from him to his boss, all I would need to do is put his name into my visor (Jim Beam), and do a network sync to 
jbeam.company.com.

I have contacted Handspring about this and have heard nothing back.

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Jay Austad
Network Administrator
CBS Marketwatch
612.817.1271
jaustad () bigcharts com
http://cbs.marketwatch.com
http://www.bigcharts.com