# CVE-2021-33180: SQL injection in Synology Media Server

> Remote attackers can execute arbitrary SQL commands in Synology Media Server via the cgi component, potentially leading to data exposure or code execution.

- **Severity:** High 7.3 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 1 Jun 2021
- **Updated:** 17 Sep 2024
- **Also known as:** GHSA-hppr-pf22-83rf

## What is CVE-2021-33180?

CVE-2021-33180 is a high-severity SQL injection vulnerability in Synology Media Server, published on 1 Jun 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Improper neutralization of special elements used in an SQL command ('SQL Injection') vulnerability in cgi component in Synology Media Server before 1.8.1-2876 allows remote attackers to execute arbitrary SQL commands via unspecified vectors.

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

## Which versions are affected by CVE-2021-33180?

It affects 1 product.


Products: Synology Media Server.

## How do I fix CVE-2021-33180?

No fix has been published for CVE-2021-33180 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-33180 being exploited?

There is no known exploitation of CVE-2021-33180 in the wild and no public exploit code.

## Other vulnerabilities in Synology Media Server

- [CVE-2022-22683](https://insights.sbomify.com/CVE-2022-22683/): Memory corruption in Media Server (critical 10.0)
- [CVE-2024-4464](https://insights.sbomify.com/CVE-2024-4464/): Missing authorization in Media Server (high 7.5)
- [CVE-2018-8914](https://insights.sbomify.com/CVE-2018-8914/): SQL injection in Media Server (high 7.3)
- [CVE-2021-34808](https://insights.sbomify.com/CVE-2021-34808/): Server-side request forgery in Media Server (medium 5.8)
- [CVE-2022-27614](https://insights.sbomify.com/CVE-2022-27614/): Information disclosure in Media Server (medium 5.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-33180 and fix it if it is affected.

What it is: CVE-2021-33180 is a high-severity SQL injection vulnerability in Synology Media Server, published on 1 Jun 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2021-33180 in the wild and no public exploit code.

Affected product: Synology Media Server. 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-2021-33180/ (Markdown: https://insights.sbomify.com/CVE-2021-33180/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-33180
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-33180
- OSV: https://osv.dev/vulnerability/CVE-2021-33180

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-33180/
Summaries are generated and may contain mistakes; the official description above is the record.