CVE-2023-4856 Command injection in SMM, SMM2, FPC
An authenticated attacker can execute arbitrary commands via a format string vulnerability in Lenovo SMM, SMM2, and FPC API endpoints.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2023-4856?
CVE-2023-4856 is a high-severity command injection vulnerability in Lenovo SMM, SMM2, FPC, published on 15 Apr 2024. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A format string vulnerability was identified in SMM/SMM2 and FPC that could allow an authenticated user to execute arbitrary commands on a specific API endpoint.
Weakness: CWE-78
Which versions are affected by CVE-2023-4856?
How do I fix CVE-2023-4856?
No fix has been published for CVE-2023-4856 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2023-4856 being exploited?
There is no known exploitation of CVE-2023-4856 in the wild and no public exploit code.
Sources
Also known as GHSA-3962-w3j2-98vq.