CVE-2023-43570 Code injection in Desktop BIOS

Medium 6.7 Published 8 Nov 2023 Updated 12 Sep 2024

A local attacker with elevated permissions can execute arbitrary code via a vulnerability in the Lenovo OemSmi driver SMI callback function.

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-2023-43570?

CVE-2023-43570 is a medium-severity code injection vulnerability in Lenovo Desktop BIOS, published on 8 Nov 2023. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A potential vulnerability was reported in the SMI callback function of the OemSmi driver that may allow a local attacker with elevated permissions to execute arbitrary code.

Weakness: CWE-20

Which versions are affected by CVE-2023-43570?

It affects 111 products.

Products include Lenovo Ideacentre 3-07ada05 Firmware, Lenovo Ideacentre 3-07imb05 Firmware, Lenovo Ideacentre 5-14acn6 Firmware, Lenovo Ideacentre 5-14imb05 Firmware, Lenovo Ideacentre 5-14iob6 Firmware, Lenovo Ideacentre 5 14iab7 Firmware and 105 more.

How do I fix CVE-2023-43570?

No fix has been published for CVE-2023-43570 yet. Limit exposure of the affected software until one is available.

Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.

Is CVE-2023-43570 being exploited?

There is no known exploitation of CVE-2023-43570 in the wild and no public exploit code.

Sources

Also known as GHSA-2974-5gjv-486c.