4 ms·

While he is able to run custom binary on the band, there doesn't seem to be any sort of crypto signatures present securing the firmware. So all you have to do i

by tener 10y ago

While he is able to run custom binary on the band, there doesn't seem to be any sort of crypto signatures present securing the firmware. So all you have to do is reverse engineer the binary format, change the code, update the CRCs where needed and hijack the update process. The article is well written and the feat is cool, but the device doesn't seem to be very secure to begin with.

sliverstorm 10y ago
It wasn't quite a developer kit, but the Band was expressly "experimental" to begin with, so I'm not surprised! I roughly their marketing pitch was roughly "we're going to put lots of sensors on you and see what happens"
duaneb 10y ago
Why on earth does a fitness band need security? What a waste of time and effort for everyone involved.
- halomru 10y ago
  Not sure if you're serious? The fitness band doesn't store your SSH keys, but with a heartbeat sensor, GPS and an accelerometer it allows unprecedented insights in your daily life (your heartbeat accelerated inside the maternity ward? Just imagine the datamining possibilities). We are dealing with extremely private data here, and a consumer device should be protected accordingly.
  - slavik81 10y ago
    As long as the firmware update requires physical access to the band and the paired computer, then it is secure. If this device is insecure just because its owner can install new software onto it, then all laptops and desktops are also insecure.
    - userbinator 10y ago
      ...and that "insecurity" is a good thing, because it's insecurity that leads to freedom. Nonetheless, there are plenty of groups who want to get rid of that insecurity, which is even scarier. https://www.gnu.org/philosophy/right-to-read.en.html https://www.gnu.org/philosophy/right-to-read.en.html http://boingboing.net/2012/01/10/lockdown.html http://boingboing.net/2012/01/10/lockdown.html http://boingboing.net/2012/08/23/civilwar.html http://boingboing.net/2012/08/23/civilwar.html "Perfect security is a good idea only to those for whom freedom is worth nothing."
      - johncolanduoni 10y ago
        How are Cory's predictions going? Apple dropped their TPM (without ever even using it), UEFI Secure Boot still allows you to put your own keys even on the most vertically integrated platforms (like the Surface), you can buy plenty of consumer routers that are already running DD-WRT and can be easily flashed with whatever you fancy, Nexus devices still let you unlock the bootloader, and Apple now lets you compile and run apps for your iPhone without a developer's license. Even consumer GPUs are easily programmable now. In what way have any general purpose computers become less general purpose since the hysteria about the war on general purpose computers started?
      - drdaeman 10y ago
        It is, and it is not. The only sane way is personal security and freedom, where your device is sold to you unlocked or trivially unlockable, with vendor as default trusted party - sure, and you can arm the security to make device obey only your commands, but no one else (including device original vendor), even if you're tricked (malware-shipping wifi hotspots, fake chargers, etc) or lose physical contact with the device.
  - userbinator 10y ago
    Unfortunately the definition of "protected" all-too-often means "against the user".
  - duaneb 10y ago
    I guess it's a matter of taste—I consider anything requiring jailbreaking inherently broken without something to protect. I have no desire to protect my fitness data, but I do have a desire to have access to my own device without problem. Give me accessible hardware or give me something that will be trash a year from now.
    - untog 10y ago
      You're not thinking broad enough. It isn't fitness data, it's historical data showing your location (and duration in that location) at all times of day.
- megalodon 10y ago
  It is most certainly not a waste of time! According to a recently published article [1], researchers managed to crack ATM PINs with 80-percent accuracy on the first try using the motion sensors on smartwatches. [1] http://phys.org/news/2016-07-smartwatch-atm-pin.html http://phys.org/news/2016-07-smartwatch-atm-pin.html
  - DiabloD3 10y ago
    Which is why I largely like randomized touch screen number pads. They may be able to tell where I touched, but not what I touched. However, Google Glass or Microsoft Holo type applications become a somewhat hilarious much better way of doing this.

by tener 10y ago

sliverstorm 10y ago

It wasn't quite a developer kit, but the Band was expressly "experimental" to begin with, so I'm not surprised! I roughly their marketing pitch was roughly "we're going to put lots of sensors on you and see what happens"

duaneb 10y ago

Why on earth does a fitness band need security? What a waste of time and effort for everyone involved.

halomru 10y ago
Not sure if you're serious? The fitness band doesn't store your SSH keys, but with a heartbeat sensor, GPS and an accelerometer it allows unprecedented insights in your daily life (your heartbeat accelerated inside the maternity ward? Just imagine the datamining possibilities). We are dealing with extremely private data here, and a consumer device should be protected accordingly.
- slavik81 10y ago
  As long as the firmware update requires physical access to the band and the paired computer, then it is secure. If this device is insecure just because its owner can install new software onto it, then all laptops and desktops are also insecure.
  - userbinator 10y ago
    ...and that "insecurity" is a good thing, because it's insecurity that leads to freedom. Nonetheless, there are plenty of groups who want to get rid of that insecurity, which is even scarier. https://www.gnu.org/philosophy/right-to-read.en.html https://www.gnu.org/philosophy/right-to-read.en.html http://boingboing.net/2012/01/10/lockdown.html http://boingboing.net/2012/01/10/lockdown.html http://boingboing.net/2012/08/23/civilwar.html http://boingboing.net/2012/08/23/civilwar.html "Perfect security is a good idea only to those for whom freedom is worth nothing."
    - johncolanduoni 10y ago
      How are Cory's predictions going? Apple dropped their TPM (without ever even using it), UEFI Secure Boot still allows you to put your own keys even on the most vertically integrated platforms (like the Surface), you can buy plenty of consumer routers that are already running DD-WRT and can be easily flashed with whatever you fancy, Nexus devices still let you unlock the bootloader, and Apple now lets you compile and run apps for your iPhone without a developer's license. Even consumer GPUs are easily programmable now. In what way have any general purpose computers become less general purpose since the hysteria about the war on general purpose computers started?
    - drdaeman 10y ago
      It is, and it is not. The only sane way is personal security and freedom, where your device is sold to you unlocked or trivially unlockable, with vendor as default trusted party - sure, and you can arm the security to make device obey only your commands, but no one else (including device original vendor), even if you're tricked (malware-shipping wifi hotspots, fake chargers, etc) or lose physical contact with the device.
- userbinator 10y ago
  Unfortunately the definition of "protected" all-too-often means "against the user".
- duaneb 10y ago
  I guess it's a matter of taste—I consider anything requiring jailbreaking inherently broken without something to protect. I have no desire to protect my fitness data, but I do have a desire to have access to my own device without problem. Give me accessible hardware or give me something that will be trash a year from now.
  - untog 10y ago
    You're not thinking broad enough. It isn't fitness data, it's historical data showing your location (and duration in that location) at all times of day.
megalodon 10y ago
It is most certainly not a waste of time! According to a recently published article [1], researchers managed to crack ATM PINs with 80-percent accuracy on the first try using the motion sensors on smartwatches. [1] http://phys.org/news/2016-07-smartwatch-atm-pin.html http://phys.org/news/2016-07-smartwatch-atm-pin.html
- DiabloD3 10y ago
  Which is why I largely like randomized touch screen number pads. They may be able to tell where I touched, but not what I touched. However, Google Glass or Microsoft Holo type applications become a somewhat hilarious much better way of doing this.