CVE-2020-0485 Missing authorization in Android
A missing permission check in Android's USB backend allows local attackers to access tethering features from a guest account, leading to 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
- None listed
What is CVE-2020-0485?
CVE-2020-0485 is a high-severity missing authorization vulnerability in Google Android, published on 15 Dec 2020. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In areFunctionsSupported of UsbBackend.java, there is a possible access to tethering from a guest account 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-166125765
Weakness: CWE-862
Which versions are affected by CVE-2020-0485?
It affects 1 product.
Products include Google Android.
How do I fix CVE-2020-0485?
No fix has been published for CVE-2020-0485 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2020-0485 being exploited?
There is no known exploitation of CVE-2020-0485 in the wild and no public exploit code.
Other vulnerabilities in Google Android
Sources
Also known as GHSA-4h6f-ccw6-mhhr.