CVE-2022-20556 Missing authorization in Android
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.
Other vulnerabilities in Google Android
Sources
Also known as A-246301667, GHSA-rxh4-q26c-4fv9, PUB-A-246301667.