2021-0600 | Google Android DeviceAdminAdd.java onCreate input validation (A-179042963)

By Max On Jul 19, 2021

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6.0	$5k-$25k	0.68

A vulnerability was found in Google Android 8.1/9.0/10.0/11.0 (Smartphone Operating System). It has been declared as critical. This vulnerability affects the function onCreate of the file DeviceAdminAdd.java. The manipulation with an unknown input leads to a privilege escalation vulnerability. The CWE definition for the vulnerability is CWE-20. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

In onCreate of DeviceAdminAdd.java, there is a possible way to mislead a user to activate a device admin app due to improper input validation. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-8.1 Android-9 Android-10 Android-11Android ID: A-179042963

The weakness was published 07/15/2021 as A-179042963. The advisory is shared for download at source.android.com. This vulnerability was named CVE-2021-0600 since 11/06/2020. The exploitation appears to be easy. The attack needs to be approached locally. A single authentication is necessary for exploitation. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 07/19/2021). 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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