CVE-2022-20446 Missing authorization in Android

Low 3.3 Published Updated

A missing permission check in Android's AlwaysOnHotwordDetector allows local attackers to access the microphone from the background, leading to 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-2022-20446?

CVE-2022-20446 is a low-severity missing authorization vulnerability in Google Android, published on 8 Nov 2022. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In AlwaysOnHotwordDetector of AlwaysOnHotwordDetector.java, there is a possible way to access the microphone from the background 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-10 Android-11Android ID: A-229793943

Weakness: CWE-862

Which versions are affected by CVE-2022-20446?

It affects 1 product.

Products include Google Android.

How do I fix CVE-2022-20446?

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-2022-20446 being exploited?

There is no known exploitation of CVE-2022-20446 in the wild and no public exploit code.

All Google Android vulnerabilities

Sources

Also known as A-229793943, ASB-A-229793943, GHSA-8pqr-x5vx-fgpj, UBUNTU-CVE-2022-20446.

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