CVE-2021-0922 Missing authorization in Android
A missing permission check in Android's PackageManagerService allows local attackers to bypass INTERACT_ACROSS_PROFILES restrictions and escalate privileges.
- 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-2021-0922?
CVE-2021-0922 is a high-severity missing authorization 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 enforceCrossUserOrProfilePermission of PackageManagerService.java, there is a possible bypass of INTERACT_ACROSS_PROFILES permission due to a missing permission check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11Android ID: A-195630721
Weakness: CWE-862
Which versions are affected by CVE-2021-0922?
It affects 1 product.
Products include Google Android.
How do I fix CVE-2021-0922?
Apply the vendor's patch.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2021-0922 being exploited?
There is no known exploitation of CVE-2021-0922 in the wild and no public exploit code.
Other vulnerabilities in Google Android
Sources
Also known as A-195630721, ASB-A-195630721, GHSA-pjj9-7rm3-86j3.