CVE-2022-42276 Missing authorization in NVIDIA DGX servers

High 7.5 Published Updated

A local user with elevated privileges can manipulate SBIOS flash memory, leading to code execution, privilege escalation, and information disclosure on NVIDIA DGX servers.

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-2022-42276?

CVE-2022-42276 is a high-severity missing authorization vulnerability in NVIDIA DGX servers, published on 13 Jan 2023. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

NVIDIA DGX A100 contains a vulnerability in SBIOS in the SmiFlash, where a local user with elevated privileges can read, write and erase flash, which may lead to code execution, escalation of privileges, denial of service, and information disclosure. The scope of impact can extend to other components.

Weakness: CWE-306, CWE-288

Which versions are affected by CVE-2022-42276?

It affects 1 product.

Products include Nvidia Dgx A100 Firmware.

How do I fix CVE-2022-42276?

No fix has been published for CVE-2022-42276 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2022-42276 being exploited?

There is no known exploitation of CVE-2022-42276 in the wild and no public exploit code.

Sources

Also known as GHSA-r3r2-xcc8-f7fp.

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