2021-0518 | Google Android WifiDisplayAdapter.java handleSendStatusChangeBroadcast information disclosure (A-176541017)

By Max On Jul 18, 2021

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4.2	$0-$5k	0.46

A vulnerability classified as problematic was found in Google Android 11.0 (Smartphone Operating System). Affected by this vulnerability is the function handleSendStatusChangeBroadcast of the file WifiDisplayAdapter.java. The manipulation with an unknown input leads to a information disclosure vulnerability. The CWE definition for the vulnerability is CWE-200. As an impact it is known to affect confidentiality. The summary by CVE is:

In handleSendStatusChangeBroadcast of WifiDisplayAdapter.java, there is a possible leak of location-sensitive data due to a missing permission check. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11Android ID: A-176541017

The weakness was disclosed 07/15/2021 as A-176541017. It is possible to read the advisory at source.android.com. This vulnerability is known as CVE-2021-0518 since 11/06/2020. The exploitation appears to be easy. Attacking locally is a requirement. The requirement for exploitation is 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 $0-$5k at the moment (estimation calculated on 07/18/2021). 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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