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
French security researcher. Worst nightmare of Oneplus, Wiko, UIDAI, Kimbho and others. Not completely schizophrenic. Not related to USANetwork. DMs open.
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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
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.
I will find time to make a POC. But it's not the biggest issue with this app.
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
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
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
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!
Same in Lenovo ...pic.twitter.com/gK4JMVcGU2
Yes, I think this app is in all @Qualcomm devices. Can you check if you have the libdoor.so in /system/lib/libdoor.so?
Nope don’t have this filepic.twitter.com/o1r0TqwC3m
Can you contact me in DM?
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