#5680 HIGH Update.: G1G1 laptops are shipping with "security" enabled
Zarro Boogs per Child
bugtracker at laptop.org
Wed Dec 26 19:15:03 EST 2007
#5680: G1G1 laptops are shipping with "security" enabled
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Reporter: gnu | Owner: jg
Type: defect | Status: new
Priority: high | Milestone: Update.1
Component: security | Version:
Resolution: | Keywords: firmware, security, G1G1
Verified: 0 | Blocking:
Blockedby: |
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Comment(by gnu):
Replying to [comment:2 jg]:
> Is it acceptable to you that your laptop be able to be "bricked" by a
virus or worm, as conventional whiteboxes are able to be?
Totally, absolutely, 1000%. It is much better for theoretical future
malware to theoretically brick a laptop in the future, than for its
manufacturer to actually, physically brick it today. You've burned the
village to save it.
Hundreds of millions of whiteboxes are in active use daily. Very few are
ever bricked by malware. The D*M in the XO is bricking laptops every day
for real live donor/customers, including a lot of little kids' Christmas
presents.
I supported four such people yesterday, one in IRC and three in
rt.laptop.org. In some cases the machine isn't necessarily bricked, but
it can't be diagnosed because you can't interact with it.
Please don't conflate D*M with security against malware. It's not clear
to me exactly how malware could brick a laptop (other than by writing zero
to the RTC month register, triggering a firmware bug). It should be easy
for the firmware to disable writes to the firmware flash chip before
booting any kernel (whether tagged "wp" or not). This would still allow
writing the firmware from Forth, which is how we always do it anyway, but
not from Linux. Closing off that opportunity for malware has nothing to
do with whether the user is permitted to type commands to the firmware
before receiving a blob signed by a private key held by OLPC.
--
Ticket URL: <http://dev.laptop.org/ticket/5680#comment:5>
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