# CVE-2023-51033: Command injection in n/a

> Attackers can execute arbitrary commands on TOTOlink EX1200L routers via the cstecgi.cgi interface, potentially compromising the device.

- **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:** 22 Dec 2023
- **Updated:** 2 Aug 2024
- **Also known as:** GHSA-j9r3-qr9f-mqgg

## What is CVE-2023-51033?

CVE-2023-51033 is a critical command injection vulnerability in n/a, published on 22 Dec 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

TOTOlink EX1200L V9.3.5u.6146_B20201023 is vulnerable to arbitrary command execution via the cstecgi.cgi setOpModeCfg interface.

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

## Which versions are affected by CVE-2023-51033?

It affects 1 product.


Products: Totolink Ex1200l Firmware.

## How do I fix CVE-2023-51033?

No fix has been published for CVE-2023-51033 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-51033 being exploited?

There is no known exploitation of CVE-2023-51033 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2023-51035](https://insights.sbomify.com/CVE-2023-51035/): Command injection in n/a (critical 9.8)
- [CVE-2023-51034](https://insights.sbomify.com/CVE-2023-51034/): File upload in n/a (high 8.8)
- [CVE-2024-7908](https://insights.sbomify.com/CVE-2024-7908/): TOTOLINK EX1200L cstecgi.cgi setDefResponse stack-based overflow (high 8.7)
- [CVE-2024-7909](https://insights.sbomify.com/CVE-2024-7909/): TOTOLINK EX1200L cstecgi.cgi setLanguageCfg stack-based overflow (high 8.7)
- [CVE-2024-7334](https://insights.sbomify.com/CVE-2024-7334/): TOTOLINK EX1200L cstecgi.cgi UploadCustomModule buffer overflow (high 8.7)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-51033 and fix it if it is affected.

What it is: CVE-2023-51033 is a critical command injection vulnerability in n/a, published on 22 Dec 2023. 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-2023-51033 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-2023-51033/ (Markdown: https://insights.sbomify.com/CVE-2023-51033/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-51033
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-51033
- OSV: https://osv.dev/vulnerability/CVE-2023-51033

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-51033/
Summaries are generated and may contain mistakes; the official description above is the record.