CVE-2022-20396 Auth bypass in Android

Medium 5.5 Published Updated

Attackers can bypass permissions to make Android devices discoverable via Bluetooth without user interaction, 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-2022-20396?

CVE-2022-20396 is a medium-severity authentication bypass vulnerability in Google Android, published on 13 Sep 2022. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In SettingsActivity.java, there is a possible way to make a device discoverable over Bluetooth, without permission or user interaction, due to a permissions bypass. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-12L Android-13Android ID: A-234440688

Weakness: CWE-345

Which versions are affected by CVE-2022-20396?

It affects 1 product.

Products include Google Android.

How do I fix CVE-2022-20396?

Apply the vendor's patch.

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

Is CVE-2022-20396 being exploited?

There is no known exploitation of CVE-2022-20396 in the wild and no public exploit code.

All Google Android vulnerabilities

Sources

Also known as A-234440688, ASB-A-234440688, GHSA-385f-2j86-w7g5.

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