CVE-2021-23244 Privilege escalation in OPPO Android Phone

High 7.8 Published Updated

Attackers can install malicious apps with whitelisted package names to gain dangerous permissions pre-granted by the ColorOS operating system.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2021-23244?

CVE-2021-23244 is a high-severity vulnerability in OPPO Android Phone, published on 27 Dec 2021. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

ColorOS pregrant dangerous permissions to apps which are listed in a whitelist xml named default-grant-permissions.But some apps in whitelist is not installed, attacker can disguise app with the same package name to obtain dangerous permission.

Which versions are affected by CVE-2021-23244?

It affects 1 product.

Products include Oppo Coloros.

How do I fix CVE-2021-23244?

No fix has been published for CVE-2021-23244 yet. Limit exposure of the affected software until one is available.

Is CVE-2021-23244 being exploited?

There is no known exploitation of CVE-2021-23244 in the wild and no public exploit code.

Sources

Also known as GHSA-9m64-9g8r-6vh6.

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