CVE-2023-20923 Missing authorization in Android

Medium 5.5 Published Updated

A permissions bypass in ShannonRcs content providers allows local attackers to access protected data without user interaction or additional 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-2023-20923?

CVE-2023-20923 is a medium-severity missing authorization vulnerability in Google Android, published on 24 Jan 2023. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In exported content providers of ShannonRcs, there is a possible way to get access to protected content providers due to a permissions bypass. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-246933910References: N/A

Weakness: CWE-732

Which versions are affected by CVE-2023-20923?

It affects 1 product.

Products include Google Android.

How do I fix CVE-2023-20923?

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-2023-20923 being exploited?

There is no known exploitation of CVE-2023-20923 in the wild and no public exploit code.

All Google Android vulnerabilities

Sources

Also known as A-246933910, GHSA-w2hf-jpvf-4c3q, PUB-A-246933910.

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