CVE-2022-3431 Security feature bypass in BIOS
An attacker with elevated privileges can bypass Secure Boot by modifying NVRAM variables via a manufacturing driver left active in Lenovo BIOS.
- 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-2022-3431?
CVE-2022-3431 is a medium-severity vulnerability in Lenovo BIOS, published on 9 Oct 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A potential vulnerability in a driver used during manufacturing process on some consumer Lenovo Notebook devices that was mistakenly not deactivated may allow an attacker with elevated privileges to modify secure boot setting by modifying an NVRAM variable.
Weakness: CWE-276
Which versions are affected by CVE-2022-3431?
It affects 25 products.
Products include Lenovo D330-10igl Firmware, Lenovo Ideapad 5 Pro-16ach6 Firmware, Lenovo Ideapad 5 Pro-16ihu6 Firmware, Lenovo Ideapad 5 Pro 16arh7 Firmware, Lenovo Ideapad Creator 5-16ach6 Firmware, Lenovo Ideapad Duet 3 10igl5 Firmware and 19 more.
How do I fix CVE-2022-3431?
No fix has been published for CVE-2022-3431 yet. Limit exposure of the affected software until one is available.
Is CVE-2022-3431 being exploited?
There is no known exploitation of CVE-2022-3431 in the wild and no public exploit code.
Other vulnerabilities in Lenovo BIOS
Sources
Also known as GHSA-jgmr-c4c9-rqmx.