CVE-2022-21933 ASUS VivoMini/Mini PC - improper input validation

Medium 6.7 Published Updated

A local attacker with system privileges can exploit improper input validation in ASUS Mini PC firmware to achieve arbitrary code execution and control the system.

Exploited in the wild
Not known
Login needed
An administrator
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2022-21933?

CVE-2022-21933 is a medium-severity memory corruption vulnerability in ASUS PA90, published on 21 Jan 2022. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

ASUS VivoMini/Mini PC device has an improper input validation vulnerability. A local attacker with system privilege can use system management interrupt (SMI) to modify memory, resulting in arbitrary code execution for controlling the system or disrupting service.

Weakness: CWE-787, CWE-20

Which versions are affected by CVE-2022-21933?

It affects 13 products.

Products include Asus Pa90 Firmware, Asus Pb50 Firmware, Asus Pb60 Firmware, Asus Pb60g Firmware, Asus Pb60s Firmware, Asus Pb60v Firmware and 7 more.

How do I fix CVE-2022-21933?

No fix has been published for CVE-2022-21933 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2022-21933 being exploited?

There is no known exploitation of CVE-2022-21933 in the wild and no public exploit code.

Sources

Also known as GHSA-qjg9-wm29-5rcr.

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