# CVE-2020-35665: Command injection in n/a

> Unauthenticated attackers can execute arbitrary commands via shell metacharacters in the Event parameter during CSV creation.

- **Severity:** Critical 9.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 23 Dec 2020
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-wf5j-wf7x-99jg

## What is CVE-2020-35665?

CVE-2020-35665 is a critical command injection vulnerability in n/a, published on 23 Dec 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

An unauthenticated command-execution vulnerability exists in TerraMaster TOS through 4.2.06 via shell metacharacters in the Event parameter in include/makecvs.php during CSV creation.

Weakness: CWE-78 (Improper Neutralization of Special Elements used in an OS Command)

## Which versions are affected by CVE-2020-35665?

It affects 1 product.


Products: Terra-Master Terramaster Operating System.

## How do I fix CVE-2020-35665?

No fix has been published for CVE-2020-35665 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-35665 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-35665 exists.

Public exploit code:

- TerraMaster TOS 4.2.06 or lower - Unauthenticated Remote Code Execution (metasploit)
- TerraMaster TOS 4.2.06 - Unauthenticated Remote Code Execution (Metasploit) (exploitdb)

## Other vulnerabilities in n/a

- [CVE-2022-24990](https://insights.sbomify.com/CVE-2022-24990/): TerraMaster OS Remote Command Execution (critical 9.8, exploited in the wild)
- [CVE-2022-24989](https://insights.sbomify.com/CVE-2022-24989/): Command injection in n/a (critical 9.8)
- [CVE-2018-13336](https://insights.sbomify.com/CVE-2018-13336/): Command injection in n/a (critical 9.8)
- [CVE-2018-13338](https://insights.sbomify.com/CVE-2018-13338/): Command injection in n/a (critical 9.8)
- [CVE-2018-13350](https://insights.sbomify.com/CVE-2018-13350/): SQL injection in n/a (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-35665 and fix it if it is affected.

What it is: CVE-2020-35665 is a critical command injection vulnerability in n/a, published on 23 Dec 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-35665 exists.

Affected product: n/a. 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-2020-35665/ (Markdown: https://insights.sbomify.com/CVE-2020-35665/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-35665
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-35665
- OSV: https://osv.dev/vulnerability/CVE-2020-35665

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-35665/
Summaries are generated and may contain mistakes; the official description above is the record.