# CVE-2012-6069: 3S CoDeSys Relative Path Traversal

> An attacker can exploit input validation flaws in the file transfer functionality to read or write arbitrary files on the device.

- **Severity:** Critical 10.0 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/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:** 21 Jan 2013
- **Updated:** 2 Jul 2025
- **Also known as:** GHSA-6q9j-3828-rfxj

## What is CVE-2012-6069?

CVE-2012-6069 is a critical path traversal vulnerability in 3S-Smart Software Solutions CECX-X-C1 Modular Master Controller with CoDeSys, published on 21 Jan 2013. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The CoDeSys Runtime Toolkit’s file transfer functionality does not 
perform input validation, which allows an attacker to access files and 
directories outside the intended scope. This may allow an attacker to 
upload and download any file on the device. This could allow the 
attacker to affect the availability, integrity, and confidentiality of 
the device.

Weakness: CWE-22 (Improper Limitation of a Pathname to a Restricted Directory), CWE-23 (Relative Path Traversal)

## Which versions are affected by CVE-2012-6069?

It affects 1 product.


Products: 3s-Software Codesys Runtime System.

## How do I fix CVE-2012-6069?

No fix has been published for CVE-2012-6069 yet. Limit exposure of the affected software until one is available.

## Is CVE-2012-6069 being exploited?

There is no known exploitation of CVE-2012-6069 in the wild and no public exploit code.

## Other vulnerabilities in 3S-Smart Software Solutions CECX-X-C1 Modular Master Controller with CoDeSys

- [CVE-2018-5440](https://insights.sbomify.com/CVE-2018-5440/): Memory corruption in 3S-Smart Software Solutions GmbH CODESYS Web Server (critical 9.8)
- [CVE-2012-6068](https://insights.sbomify.com/CVE-2012-6068/): 3S CoDeSys Improper Access Control (critical 9.8)
- [CVE-2014-0760](https://insights.sbomify.com/CVE-2014-0760/): Festo CECX-X-(C1/M1) Controller Improper Authentication (critical 9.3)
- [CVE-2014-0769](https://insights.sbomify.com/CVE-2014-0769/): Festo CECX-X-(C1/M1) Controller Improper Authentication (critical 9.3)
- [CVE-2015-6482](https://insights.sbomify.com/CVE-2015-6482/): Null dereference in n/a (medium 5.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2012-6069 and fix it if it is affected.

What it is: CVE-2012-6069 is a critical path traversal vulnerability in 3S-Smart Software Solutions CECX-X-C1 Modular Master Controller with CoDeSys, published on 21 Jan 2013. 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-2012-6069 in the wild and no public exploit code.

Affected product: 3S-Smart Software Solutions CECX-X-C1 Modular Master Controller with CoDeSys. 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-2012-6069/ (Markdown: https://insights.sbomify.com/CVE-2012-6069/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2012-6069
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2012-6069
- OSV: https://osv.dev/vulnerability/CVE-2012-6069

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From sbomify Insights: https://insights.sbomify.com/CVE-2012-6069/
Summaries are generated and may contain mistakes; the official description above is the record.