# CVE-2023-5702: Viessmann Vitogate 300 direct request

> Attackers can bypass authorization to access restricted CGI endpoints on Viessmann Vitogate 300 devices, potentially exposing sensitive functionality.

- **Severity:** Medium 4.3 (`CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 23 Oct 2023
- **Updated:** 2 Aug 2024
- **Also known as:** GHSA-782x-9xpx-3gm4

## What is CVE-2023-5702?

CVE-2023-5702 is a medium-severity missing authorization vulnerability in Viessmann Vitogate 300, published on 23 Oct 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 Viessmann Vitogate 300 up to 2.1.3.0 and classified as problematic. Affected by this issue is some unknown functionality of the file /cgi-bin/. The manipulation leads to direct request. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-243140. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

Weakness: CWE-425 (Direct Request)

## Which versions are affected by CVE-2023-5702?

It affects 1 product.


Products: Viessmann Vitogate 300 Firmware.

## How do I fix CVE-2023-5702?

No fix has been published for CVE-2023-5702 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-5702 being exploited?

There is no known exploitation of CVE-2023-5702 in the wild and no public exploit code.

Public exploit code:

- Viessmann Vitogate 300 2.1.3.0 - Remote Code Execution (RCE) (exploitdb)

## Other vulnerabilities in Viessmann Vitogate 300

- [CVE-2023-45852](https://insights.sbomify.com/CVE-2023-45852/): Command injection in n/a (critical 9.8)
- [CVE-2023-5222](https://insights.sbomify.com/CVE-2023-5222/): Viessmann Vitogate 300 Web Management Interface vitogate.cgi isValidUser hard-coded password (medium 6.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-5702 and fix it if it is affected.

What it is: CVE-2023-5702 is a medium-severity missing authorization vulnerability in Viessmann Vitogate 300, published on 23 Oct 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-2023-5702 in the wild and no public exploit code.

Affected product: Viessmann Vitogate 300. 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-2023-5702/ (Markdown: https://insights.sbomify.com/CVE-2023-5702/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-5702
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-5702
- OSV: https://osv.dev/vulnerability/CVE-2023-5702

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-5702/
Summaries are generated and may contain mistakes; the official description above is the record.