CVE-2021-3452 Code injection in ThinkPad BIOS
Local attackers with elevated privileges can execute arbitrary code via a vulnerability in the ThinkPad BIOS system shutdown callback.
- 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-2021-3452?
CVE-2021-3452 is a medium-severity code injection vulnerability in Lenovo ThinkPad BIOS, published on 16 Jul 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A potential vulnerability in the system shutdown SMI callback function in some ThinkPad models may allow an attacker with local access and elevated privileges to execute arbitrary code.
Weakness: CWE-20
Which versions are affected by CVE-2021-3452?
It affects 1 product.
Products include Lenovo Bios.
How do I fix CVE-2021-3452?
No fix has been published for CVE-2021-3452 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-2021-3452 being exploited?
There is no known exploitation of CVE-2021-3452 in the wild and no public exploit code.
Other vulnerabilities in Lenovo ThinkPad BIOS
- CVE-2016-5247 Security feature bypass in n/a
- CVE-2017-3754 Security feature bypass in Lenovo Notebook BIOS
- CVE-2016-8224 Privilege escalation in Lenovo Notebook models 110-14IBR/110-15IBR, B70-80, E31-80, E40-80, E41-80, E51-80, G40-80, G50-80, G50-80 Touch, Ideapad 300-14IBR/300-15IBR, Ideapad 300-14ISK/300-15ISK/300-17ISK, Ideapad 510S-12ISK, K21-80, K41-80, MIIX 710-12IKB , XiaoXin Air 12, YOGA 510-14ISK/510-15ISK, YOGA 710-11IKB, Yoga 710-11ISK, Yoga 900-13ISK, YOGA 900S-12ISK; ThinkServer models ThinkServer TS150, ThinkServer TS450
Sources
Also known as GHSA-8f7w-9jvr-vccr.