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fs0c131y's profile
Elliot Alderson
Elliot Alderson
Elliot Alderson
@fs0c131y

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Elliot Alderson

@fs0c131y

French security researcher. Worst nightmare of Oneplus, Wiko, UIDAI, Kimbho and others. Not completely schizophrenic. Not related to USANetwork. DMs open.

Joined June 2015

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    1. Elliot Alderson‏ @fs0c131y 27 Nov 2017

      With the help of 3 critical vulnerabilities left by Tinno. If an attacker manages to get a physical access to your device, he has multiple ways to get your data. Let's assume as a hypothesis that the device is protected by a PIN code and the developer options are disabled 2/

      2 replies 4 retweets 11 likes
      Show this thread
    2. Elliot Alderson‏ @fs0c131y 27 Nov 2017

      1st scenario: 1. Reboot in bootloader mode 2. fastboot oem unlock-tinno Thanks to this backdoor aka "forgotten" fastboot command, you can unlock the bootloader without wiping your data 🤦‍♂️ 3/pic.twitter.com/ngRjQ7stHn

      2 replies 5 retweets 22 likes
      Show this thread
    3. Elliot Alderson‏ @fs0c131y 27 Nov 2017

      As the phone bootloader is unlocked when a thief gets their hands on it, they can boot a custom recovery environment. From the recovery mode, they could use the adb command to access all the data on your device. This bypasses any PIN or password used to secure your device. 4/

      2 replies 1 retweet 10 likes
      Show this thread
    4. Mishaal Rahman‏ @MishaalRahman 27 Nov 2017
      Replying to @fs0c131y @WikoMobile and

      Is /data not encrypted on these phones?

      1 reply 0 retweets 0 likes
    5. Elliot Alderson‏ @fs0c131y 27 Nov 2017
      Replying to @MishaalRahman @WikoMobile and

      I didn't test for /data in this usecase but I just checked and encryption is not enabled on the device I have. I didn't modify it so I guess it's the default value.

      1 reply 0 retweets 0 likes
    6. Mishaal Rahman‏ @MishaalRahman 27 Nov 2017
      Replying to @fs0c131y @WikoMobile and

      If /data is encrypted then even with an unlocked bootloader without wiping data the data would be secure

      1 reply 0 retweets 0 likes
    7. Elliot Alderson‏ @fs0c131y 27 Nov 2017
      Replying to @MishaalRahman @WikoMobile and

      Need to be tested but I'm pretty sure it's not. I manage to get the content of /data/data/<app-name> in clear without unlocking the phone. Only condition in this usecase is dev options enabled

      1 reply 0 retweets 0 likes
    8. Mishaal Rahman‏ @MishaalRahman 27 Nov 2017
      Replying to @fs0c131y @WikoMobile and

      Did that phone you tested on have a lockscreen password/pin/pattern enabled? The encryption key is generated based on that

      1 reply 0 retweets 0 likes
    9. Elliot Alderson‏ @fs0c131y 27 Nov 2017
      Replying to @MishaalRahman @WikoMobile and

      Yes the phone I tested have a PIN code! Let's assume your device is locked with a PIN/password/pattern and dev options are enabled: 1. Boot your device 2. Plug it 3. adb shell setprop persist.tinno.debug 1 4. adb shell ls /data/data 5. adb pull /data/data/<app-name>

      1 reply 0 retweets 0 likes
    10. Mishaal Rahman‏ @MishaalRahman 27 Nov 2017
      Replying to @fs0c131y @WikoMobile and

      I'm not sure what Android version that phone is running, but on some older versions it offers to use your PIN on startup (ie. enable encryption). You should verify if encryption is actually enabled.

      1 reply 0 retweets 0 likes
      Elliot Alderson‏ @fs0c131y 27 Nov 2017
      Replying to @MishaalRahman @WikoMobile and

      It's Android 6.0 http://world.wikomobile.com/m1301-freddy  As said, encryption is disabled by default on the device I have so no PIN during the startup

      10:15 PM - 27 Nov 2017
      0 replies 0 retweets 0 likes

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