# CVE-2023-3656: Unauthenticated Remote Code Execution

> Unauthenticated attackers can execute arbitrary code via an exposed HTTP endpoint in cashIT POS software.

- **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:** 3 Oct 2023
- **Updated:** 2 Aug 2024
- **Also known as:** GHSA-3f63-w59m-x8ff

## What is CVE-2023-3656?

CVE-2023-3656 is a critical code injection vulnerability in PoS/ Dienstleistung, Entwicklung & Vertrieb GmbH cashIT! - serving solutions., published on 3 Oct 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

cashIT! - serving solutions. Devices from "PoS/ Dienstleistung, Entwicklung & Vertrieb GmbH" to 03.A06rks 2023.02.37 are affected by an unauthenticated remote code execution vulnerability. This vulnerability can be triggered by an HTTP endpoint exposed to the network.

Weakness: CWE-94 (Improper Control of Generation of Code), CWE-749 (Exposed Dangerous Method or Function)

## Which versions are affected by CVE-2023-3656?

It affects 1 product.


Products: Cashit Cashit\!.

## How do I fix CVE-2023-3656?

No fix has been published for CVE-2023-3656 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-3656 being exploited?

There is no known exploitation of CVE-2023-3656 in the wild and no public exploit code.

## Other vulnerabilities in PoS/ Dienstleistung, Entwicklung & Vertrieb GmbH cashIT! - serving solutions.

- [CVE-2023-3654](https://insights.sbomify.com/CVE-2023-3654/): Origin Check Bypass (critical 9.4)
- [CVE-2023-3655](https://insights.sbomify.com/CVE-2023-3655/): Unauthenticated Remote Database Exfiltration (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-3656 and fix it if it is affected.

What it is: CVE-2023-3656 is a critical code injection vulnerability in PoS/ Dienstleistung, Entwicklung & Vertrieb GmbH cashIT! - serving solutions., published on 3 Oct 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-2023-3656 in the wild and no public exploit code.

Affected product: PoS/ Dienstleistung, Entwicklung & Vertrieb GmbH cashIT! - serving solutions.. 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-2023-3656/ (Markdown: https://insights.sbomify.com/CVE-2023-3656/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-3656
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-3656
- OSV: https://osv.dev/vulnerability/CVE-2023-3656

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-3656/
Summaries are generated and may contain mistakes; the official description above is the record.