CVE-2023-20995 Auth bypass in Android

High 7.8 Published Updated

A logic error in Android's fingerprint sensor allows local attackers to bypass unlock and escalate privileges without user interaction.

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-2023-20995?

CVE-2023-20995 is a high-severity authentication bypass vulnerability in Google Android, published on 24 Mar 2023. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In captureImage of CustomizedSensor.cpp, there is a possible way to bypass the fingerprint unlock due to a logic error in the code. 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-241910279

Weakness: CWE-269

Which versions are affected by CVE-2023-20995?

It affects 1 product.

Products include Google Android.

How do I fix CVE-2023-20995?

Apply the vendor's patch.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2023-20995 being exploited?

There is no known exploitation of CVE-2023-20995 in the wild and no public exploit code.

All Google Android vulnerabilities

Sources

Also known as A-241910279, GHSA-wccw-c3q8-hgg2, PUB-A-241910279.

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