CVE-2021-0590 Missing authorization in Android

Medium 4.4 Published Updated

A privileged app can access WiFi BSSID and SSID without location permissions due to a missing check, leading to local information disclosure.

Exploited in the wild
Not known
Login needed
An administrator
Attackable
Local or same network only
Victim action needed
Not needed
Fix
Available

What is CVE-2021-0590?

CVE-2021-0590 is a medium-severity missing authorization vulnerability in Google Android, published on 14 Jul 2021. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

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

Which versions are affected by CVE-2021-0590?

It affects 1 product.

Products include Google Android.

How do I fix CVE-2021-0590?

Apply the vendor's patch.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2021-0590 being exploited?

There is no known exploitation of CVE-2021-0590 in the wild and no public exploit code.

All Google Android vulnerabilities

Sources

Also known as A-175213041, ASB-A-175213041, GHSA-7xcw-cfh3-rfm5.

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