CVE-2021-1025 Information disclosure in Android

Medium 5.5 Published Updated

A missing permission check in Android's WallpaperManagerService allows local attackers to determine if specific apps are installed 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-2021-1025?

CVE-2021-1025 is a medium-severity vulnerability in Google Android, published on 15 Dec 2021. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In hasNamedWallpaper of WallpaperManagerService.java, there is a possible way to determine whether an app is installed, without query permissions, due to a missing permission check. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-12Android ID: A-193800652

Weakness: CWE-862

Which versions are affected by CVE-2021-1025?

It affects 1 product.

Products include Google Android.

How do I fix CVE-2021-1025?

Apply the vendor's patch.

Is CVE-2021-1025 being exploited?

There is no known exploitation of CVE-2021-1025 in the wild and no public exploit code.

All Google Android vulnerabilities

Sources

Also known as A-193800652, GHSA-cmxp-qj8c-q64f, PUB-A-193800652.

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