2021-0593 | Google Android DevicePickerFragment.java sendDevicePickedtent Local Privilege Escalation (A-179386068)

By Max On Aug 20, 2021

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5.1	$5k-$25k	0.67

A vulnerability classified as problematic was found in Google Android 8.1/9.0/10.0/11.0 (Smartphone Operating System). Affected by this vulnerability is the function sendDevicePickedtent of the file DevicePickerFragment.java. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

In sendDevicePickedIntent of DevicePickerFragment.java, there is a possible way to invoke a privileged broadcast receiver due to a confused deputy. This could lead to local escalation of privilege with User execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-10 Android-11 Android-8.1 Android-9Android ID: A-179386068

The weakness was presented 08/18/2021 as A-179386068. It is possible to read the advisory at source.android.com. This vulnerability is known as CVE-2021-0593 since 11/06/2020. The exploitation appears to be easy. Attacking locally is a requirement. The successful exploitation needs a single authentication. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 08/20/2021). It is expected to see the exploit prices for this product increasing in the near future.

Applying a patch is able to eliminate this problem.

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