# CVE-2021-2447: Auth bypass in Secure Global Desktop

> A low-privileged attacker can compromise Oracle Secure Global Desktop via network access, leading to full system takeover.

- **Severity:** Critical 9.9 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 20 Jul 2021
- **Updated:** 25 Sep 2024
- **Also known as:** GHSA-2p3h-vm38-7wjp

## What is CVE-2021-2447?

CVE-2021-2447 is a critical authentication bypass vulnerability in Oracle Corporation Secure Global Desktop, published on 20 Jul 2021. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Vulnerability in the Oracle Secure Global Desktop product of Oracle Virtualization (component: Server). The supported version that is affected is 5.6. Easily exploitable vulnerability allows low privileged attacker with network access via multiple protocols to compromise Oracle Secure Global Desktop. While the vulnerability is in Oracle Secure Global Desktop, attacks may significantly impact additional products. Successful attacks of this vulnerability can result in takeover of Oracle Secure Global Desktop. CVSS 3.1 Base Score 9.9 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H).

## Which versions are affected by CVE-2021-2447?

It affects 1 product.


Products: Oracle Secure Global Desktop.

## How do I fix CVE-2021-2447?

No fix has been published for CVE-2021-2447 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-2447 being exploited?

There is no known exploitation of CVE-2021-2447 in the wild and no public exploit code.

## Other vulnerabilities in Oracle Corporation Secure Global Desktop

- [CVE-2021-2177](https://insights.sbomify.com/CVE-2021-2177/): Auth bypass in Secure Global Desktop (critical 10.0)
- [CVE-2021-2248](https://insights.sbomify.com/CVE-2021-2248/): Auth bypass in Secure Global Desktop (critical 10.0)
- [CVE-2016-3613](https://insights.sbomify.com/CVE-2016-3613/): Other in n/a (critical 9.8)
- [CVE-2021-2446](https://insights.sbomify.com/CVE-2021-2446/): Other in Secure Global Desktop (critical 9.6)
- [CVE-2021-2221](https://insights.sbomify.com/CVE-2021-2221/): Other in Secure Global Desktop (critical 9.6)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-2447 and fix it if it is affected.

What it is: CVE-2021-2447 is a critical authentication bypass vulnerability in Oracle Corporation Secure Global Desktop, published on 20 Jul 2021. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2021-2447 in the wild and no public exploit code.

Affected product: Oracle Corporation Secure Global Desktop. 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-2021-2447/ (Markdown: https://insights.sbomify.com/CVE-2021-2447/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-2447
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-2447
- OSV: https://osv.dev/vulnerability/CVE-2021-2447

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-2447/
Summaries are generated and may contain mistakes; the official description above is the record.