CVE-2020-0454 Missing authorization in Android

Medium 5.5 Published Updated

A missing permission check in Android's ConnectivityService allows local attackers to disclose the current SSID 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-2020-0454?

CVE-2020-0454 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 callCallbackForRequest of ConnectivityService.java, there is a possible permission bypass due to a missing permission check. This could lead to local information disclosure of the current SSID with User execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-9Android ID: A-161370134

Weakness: CWE-862

Which versions are affected by CVE-2020-0454?

It affects 1 product.

Products include Google Android.

How do I fix CVE-2020-0454?

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-2020-0454 being exploited?

There is no known exploitation of CVE-2020-0454 in the wild and no public exploit code.

All Google Android vulnerabilities

Sources

Also known as A-161370134, ASB-A-161370134, GHSA-rrpw-6ph5-g7qx.

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