CVE-2020-0394 Security feature bypass in Android

High 7.8 Published 17 Sep 2020 Updated 4 Aug 2024

An insecure default in the Bluetooth pairing dialog allows tapjacking, enabling local privilege escalation and unauthorized access to contact lists.

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-2020-0394?

CVE-2020-0394 is a high-severity vulnerability in Google Android, published on 17 Sep 2020. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In onCreate of BluetoothPairingDialog.java, there is a possible tapjacking vector due to an insecure default value. This could lead to local escalation of privilege and untrusted devices accessing contact lists with no additional execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-8.0 Android-8.1 Android-9 Android-10 Android-11Android ID: A-155648639

Weakness: CWE-1188, CWE-1021

Which versions are affected by CVE-2020-0394?

It affects 1 product.

Products include Google Android.

How do I fix CVE-2020-0394?

Apply the vendor's patch.

Is CVE-2020-0394 being exploited?

There is no known exploitation of CVE-2020-0394 in the wild and no public exploit code.

Public exploit code: 3 proofs of concept on GitHub.

All Google Android vulnerabilities

Sources

Also known as A-155648639, ASB-A-155648639, GHSA-8jfh-qgm5-rg54.