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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 13 Nov 2017

      If you have an OnePlus device, I'm pretty sure you have this app pre-installed. To check open Settings -> Apps -> Menu -> Show system apps and search EngineerMode in the app list to check

      11 replies 18 retweets 52 likes
      Show this thread
    2. Elliot Alderson‏ @fs0c131y 13 Nov 2017

      With telephony secret code you can access to manual tests like GPS test, root status test as stated in this article https://www.xda-developers.com/oneplus-hardware-diagnostic-tests … pointed by @AleGrechi . But can do better...pic.twitter.com/7gTaZ848Gp

      1 reply 16 retweets 50 likes
      Show this thread
    3. Elliot Alderson‏ @fs0c131y 13 Nov 2017

      You can access to the "main" activity by sending this command: adb shell am start http://com.android .engineeringmode/.EngineeringMode You will have access to everything, not just the manual test.pic.twitter.com/UkwXPPmPDV

      1 reply 17 retweets 56 likes
      Show this thread
    4. Elliot Alderson‏ @fs0c131y 13 Nov 2017

      Having access to all these functions is a real issue. Combined with this attack, http://researchcenter.paloaltonetworks.com/2017/09/unit42-android-toast-overlay-attack-cloak-and-dagger-with-no-permissions …, a malicious app can do a lot of thing.

      1 reply 13 retweets 40 likes
      Show this thread
    5. Elliot Alderson‏ @fs0c131y 13 Nov 2017

      I will find time to make a POC. But it's not the biggest issue with this app.

      1 reply 1 retweet 21 likes
      Show this thread
    6. Elliot Alderson‏ @fs0c131y 13 Nov 2017

      The DiagEnabled, which is a @Qualcomm made activity, is the best class in this EngineerMode APK. Check the methods in this activity: escalatedUp(boolean, string) sounds like a cool thing no 😀?pic.twitter.com/iQFfam6eg6

      1 reply 4 retweets 38 likes
      Show this thread
    7. Elliot Alderson‏ @fs0c131y 13 Nov 2017

      In the onCreate method if the intent is not null the escalatedUp method is called with the parameter enable=true and password=getIntent().getStringExtra("code"). Do you see where I'm going?pic.twitter.com/oa1i1NdlpU

      1 reply 2 retweets 33 likes
      Show this thread
    8. Elliot Alderson‏ @fs0c131y 13 Nov 2017

      The escalatedUp method is calling Privilege.escalate(password) and if the result is true, it set the system property persist.sys.adbroot and oem.selinux.reload_policy to 1pic.twitter.com/92LeBfDPAv

      4 replies 16 retweets 43 likes
      Show this thread
    9. Elliot Alderson‏ @fs0c131y 13 Nov 2017

      So yes, if you send the command: adb shell am start -n http://com.android .engineeringmode/.qualcomm.DiagEnabled --es "code" "password" with the correct code you can become root!

      5 replies 28 retweets 75 likes
      Show this thread
    10. andQlimax‏ @andQlimax 14 Nov 2017
      Replying to @fs0c131y @oneplus and

      If I want to use that root shell to do some changes (e.g remove a system apk), then can I disable root shell and maintain the changes I did? It will leave any root trace in the system? Should I unset some sys property?

      1 reply 0 retweets 0 likes
      Elliot Alderson‏ @fs0c131y 14 Nov 2017
      Replying to @andQlimax @oneplus and

      yes you can just use adb shell setprop persist.sys.adbroot 0 and reboot

      10:19 AM - 14 Nov 2017
      • 2 Likes
      • andQlimax Auxilus
      1 reply 0 retweets 2 likes
        1. New conversation
        2. andQlimax‏ @andQlimax 14 Nov 2017
          Replying to @fs0c131y @oneplus and

          Cool thanks. You really replying to everyone! What a day for you! 😀

          1 reply 0 retweets 1 like
        3. Elliot Alderson‏ @fs0c131y 14 Nov 2017
          Replying to @andQlimax @oneplus and

          Yes, today is a crazy day for me

          2 replies 0 retweets 1 like
        4. John Daniels‏ @Jda372 14 Nov 2017
          Replying to @fs0c131y @andQlimax and

          Hey do you respond to DM I have a question regarding this root method that you've discovered

          1 reply 0 retweets 1 like
        5. Elliot Alderson‏ @fs0c131y 14 Nov 2017
          Replying to @Jda372 @andQlimax and

          I try to do my best!

          0 replies 0 retweets 1 like
        6. End of conversation

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