# CVE-2021-4313: NethServer phonenehome index.php get_country_coor sql injection

> SQL injection in NethServer phonehome allows attackers to manipulate database queries, potentially exposing or modifying sensitive data.

- **Severity:** Medium 5.5 (`CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 16 Jan 2023
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-gjw6-4ppg-h3xg

## What is CVE-2021-4313?

CVE-2021-4313 is a medium-severity SQL injection vulnerability in NethServer phonenehome, published on 16 Jan 2023. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

A vulnerability was found in NethServer phonenehome. It has been rated as critical. This issue affects the function get_info/get_country_coor of the file server/index.php. The manipulation leads to sql injection. The identifier of the patch is 759c30b0ddd7d493836bbdf695cf71624b377391. It is recommended to apply a patch to fix this issue. The identifier VDB-218393 was assigned to this vulnerability.

Weakness: CWE-89 (Improper Neutralization of Special Elements used in an SQL Command)

## Which versions are affected by CVE-2021-4313?

It affects 1 product.


Products: Nethserver-Phonenehome Project Nethserver-Phonenehome.

## How do I fix CVE-2021-4313?

No fix has been published for CVE-2021-4313 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-4313 being exploited?

There is no known exploitation of CVE-2021-4313 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-4313 and fix it if it is affected.

What it is: CVE-2021-4313 is a medium-severity SQL injection vulnerability in NethServer phonenehome, published on 16 Jan 2023. 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-2021-4313 in the wild and no public exploit code.

Affected product: NethServer phonenehome. 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-2021-4313/ (Markdown: https://insights.sbomify.com/CVE-2021-4313/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-4313
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-4313
- OSV: https://osv.dev/vulnerability/CVE-2021-4313

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-4313/
Summaries are generated and may contain mistakes; the official description above is the record.