CVE-2021-0331 Security feature bypass in Android
An insecure default value in Android's notification access confirmation allows local attackers to perform overlay attacks and escalate privileges.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2021-0331?
CVE-2021-0331 is a high-severity vulnerability in Google Android, published on 10 Feb 2021. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
In onCreate of NotificationAccessConfirmationActivity.java, there is a possible overlay attack due to an insecure default value. This could lead to local escalation of privilege and notification access with User execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-9 Android-10 Android-11 Android-8.1Android ID: A-170731783
Weakness: CWE-1021
Which versions are affected by CVE-2021-0331?
It affects 1 product.
Products include Google Android.
How do I fix CVE-2021-0331?
Apply the vendor's patch.
Is CVE-2021-0331 being exploited?
There is no known exploitation of CVE-2021-0331 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Other vulnerabilities in Google Android
Sources
Also known as A-170731783, ASB-A-170731783, GHSA-9vc6-7g98-392v.