# CVE-2021-2281: Missing authorization in VM VirtualBox

> An unauthenticated attacker with local access can modify or delete critical VirtualBox data, compromising integrity.

- **Severity:** High 7.1 (`CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 22 Apr 2021
- **Updated:** 26 Sep 2024
- **Also known as:** GHSA-fqq8-4m6j-p5rq, UBUNTU-CVE-2021-2281

## What is CVE-2021-2281?

CVE-2021-2281 is a high-severity missing authorization vulnerability in Oracle Vm Virtualbox, published on 22 Apr 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 6.1.20. Easily exploitable vulnerability allows unauthenticated 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. CVSS 3.1 Base Score 7.1 (Integrity impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N).

## Which versions are affected by CVE-2021-2281?

It affects 1 product.


Products: Oracle Vm Virtualbox.

## How do I fix CVE-2021-2281?

Upgrade to a fixed version.

## Is CVE-2021-2281 being exploited?

There is no known exploitation of CVE-2021-2281 in the wild and no public exploit code.

## Other vulnerabilities in Oracle Vm Virtualbox

- [CVE-2016-5605](https://insights.sbomify.com/CVE-2016-5605/): Unspecified vulnerability in the Oracle VM VirtualBox component before 5.1.4 in Oracle Virtualization allows remote attackers to affect conf (critical 9.1)
- [CVE-2018-3294](https://insights.sbomify.com/CVE-2018-3294/): Privilege escalation in VM VirtualBox (critical 9.0)
- [CVE-2024-21112](https://insights.sbomify.com/CVE-2024-21112/): Privilege escalation in VM VirtualBox (high 8.8)
- [CVE-2024-21113](https://insights.sbomify.com/CVE-2024-21113/): Privilege escalation in VM VirtualBox (high 8.8)
- [CVE-2024-21114](https://insights.sbomify.com/CVE-2024-21114/): Privilege escalation in VM VirtualBox (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-2281 and fix it if it is affected.

What it is: CVE-2021-2281 is a high-severity missing authorization vulnerability in Oracle Vm Virtualbox, published on 22 Apr 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2021-2281 in the wild and no public exploit code.

Affected product: Oracle Vm Virtualbox. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2021-2281/ (Markdown: https://insights.sbomify.com/CVE-2021-2281/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-2281
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-2281
- OSV: https://osv.dev/vulnerability/CVE-2021-2281

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From sbomify Insights: https://insights.sbomify.com/CVE-2021-2281/
Summaries are generated and may contain mistakes; the official description above is the record.