# CVE-2020-10818: Command injection in n/a

> Authenticated attackers can execute arbitrary commands on Artica Proxy servers by injecting shell metacharacters into the hostname field.

- **Severity:** High 7.2 (`CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 22 Mar 2020
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-9hj3-qj4h-f563

## What is CVE-2020-10818?

CVE-2020-10818 is a high-severity command injection vulnerability in n/a, published on 22 Mar 2020. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

Artica Proxy 4.26 allows remote command execution for an authenticated user via shell metacharacters in the "Modify the hostname" field.

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

## Which versions are affected by CVE-2020-10818?

It affects 1 product.


Products: Articatech Artica Proxy.

## How do I fix CVE-2020-10818?

No fix has been published for CVE-2020-10818 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-10818 being exploited?

There is no known exploitation of CVE-2020-10818 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2024-2054](https://insights.sbomify.com/CVE-2024-2054/): Artica Proxy Unauthenticated PHP Deserialization Vulnerability (critical 9.8)
- [CVE-2024-2055](https://insights.sbomify.com/CVE-2024-2055/): Artica Proxy Unauthenticated File Manager Vulnerability (critical 9.8)
- [CVE-2024-2056](https://insights.sbomify.com/CVE-2024-2056/): Artica Proxy Loopback Services Remotely Accessible Unauthenticated (critical 9.8)
- [CVE-2021-41739](https://insights.sbomify.com/CVE-2021-41739/): Command injection in n/a (critical 9.8)
- [CVE-2020-13159](https://insights.sbomify.com/CVE-2020-13159/): Artica Proxy before 4.30.000000 Community Edition allows OS command injection via the Netbios name, Server domain name, dhclient_mac, Hostname, or Alias field. (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-10818 and fix it if it is affected.

What it is: CVE-2020-10818 is a high-severity command injection vulnerability in n/a, published on 22 Mar 2020. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2020-10818 in the wild and no public exploit code.

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-2020-10818/ (Markdown: https://insights.sbomify.com/CVE-2020-10818/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-10818
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-10818
- OSV: https://osv.dev/vulnerability/CVE-2020-10818

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-10818/
Summaries are generated and may contain mistakes; the official description above is the record.