CVE-2020-0448 Missing authorization in Android
A missing permission check in Android's TelecomServiceImpl allows local attackers to access tracking identifiers, enabling cross-device account tracking 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-2020-0448?
CVE-2020-0448 is a medium-severity missing authorization vulnerability in Google Android, published on 10 Nov 2020. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In getPhoneAccountsForPackage of TelecomServiceImpl.java, there is a possible way to access a tracking identifier due to a missing permission check. This could lead to local information disclosure of the identifier, which could be used to track an account across devices, with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-8.0 Android-8.1 Android-9 Android-10 Android-11Android ID: A-153995334
Weakness: CWE-862
Which versions are affected by CVE-2020-0448?
It affects 1 product.
Products include Google Android.
How do I fix CVE-2020-0448?
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-2020-0448 being exploited?
There is no known exploitation of CVE-2020-0448 in the wild and no public exploit code.
Other vulnerabilities in Google Android
Sources
Also known as A-153995334, ASB-A-153995334, GHSA-3jxq-45r5-2p48.