CVE-2021-2129 Missing authorization in VM VirtualBox

High 7.9 Published 20 Jan 2021 Updated 26 Sep 2024

A high-privileged attacker with local access can bypass authorization controls to read, modify, or delete critical VirtualBox data.

Exploited in the wild: Not known
Login needed: An administrator
Attackable: Local or same network only
Victim action needed: Not needed
Fix: Available

What is CVE-2021-2129?

CVE-2021-2129 is a high-severity missing authorization vulnerability in Oracle Vm Virtualbox, published on 20 Jan 2021. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Vulnerability in the Oracle VM VirtualBox product of Oracle Virtualization (component: Core). The supported version that is affected is Prior to 6.1.18. Easily exploitable vulnerability allows high privileged attacker with logon to the infrastructure where Oracle VM VirtualBox executes to compromise Oracle VM VirtualBox. While the vulnerability is in Oracle VM VirtualBox, attacks may significantly impact additional products. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Oracle VM VirtualBox accessible data as well as unauthorized access to critical data or complete access to all Oracle VM VirtualBox accessible data. CVSS 3.1 Base Score 7.9 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N).

Which versions are affected by CVE-2021-2129?

It affects 1 product.

Products include Oracle Vm Virtualbox.

How do I fix CVE-2021-2129?

Upgrade to a fixed version.

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

Is CVE-2021-2129 being exploited?

There is no known exploitation of CVE-2021-2129 in the wild and no public exploit code.

All Oracle Vm Virtualbox vulnerabilities

Sources

Also known as GHSA-fxvg-27xw-fcvj, UBUNTU-CVE-2021-2129.