2021-0590 | Google Android WiFi NetworkMonitor.java sendNetworkConditionsBroadcast information disclosure (A-175213041)

By Max On Jul 18, 2021

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3.7	$0-$5k	0.81

A vulnerability classified as problematic has been found in Google Android 8.1/9.0/10.0/11.0 (Smartphone Operating System). This affects the function sendNetworkConditionsBroadcast of the file NetworkMonitor.java of the component WiFi Handler. The manipulation with an unknown input leads to a information disclosure vulnerability. CWE is classifying the issue as CWE-200. This is going to have an impact on confidentiality. The summary by CVE is:

In sendNetworkConditionsBroadcast of NetworkMonitor.java, there is a possible way for a privileged app to receive WiFi BSSID and SSID without location permissions due to a missing permission check. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-10 Android-11 Android-8.1 Android-9Android ID: A-175213041

The weakness was published 07/15/2021 as A-175213041. It is possible to read the advisory at source.android.com. This vulnerability is uniquely identified as CVE-2021-0590 since 11/06/2020. The exploitability is told to be easy. Attacking locally is a requirement. Required for exploitation is a 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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