CVE-2022-20556 Missing authorization in Android

Low 3.3 Published Updated

A missing permission check in Android's network settings allows a guest user to add new WiFi networks, leading to local privilege escalation.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
Available

What is CVE-2022-20556?

CVE-2022-20556 is a low-severity missing authorization vulnerability in Google Android, published on 16 Dec 2022. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In launchConfigNewNetworkFragment of NetworkProviderSettings.java, there is a possible way for the guest user to add a new WiFi network due to a missing permission check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-13Android ID: A-246301667

Weakness: CWE-862

Which versions are affected by CVE-2022-20556?

It affects 1 product.

Products include Google Android.

How do I fix CVE-2022-20556?

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-2022-20556 being exploited?

There is no known exploitation of CVE-2022-20556 in the wild and no public exploit code.

All Google Android vulnerabilities

Sources

Also known as A-246301667, GHSA-rxh4-q26c-4fv9, PUB-A-246301667.

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