The Festo CECX-X-C1 Modular Master Controller with CoDeSys and CECX-X-M1 Modular Controller with CoDeSys and SoftMotion do not require authentication for connections to certain TCP ports, which allows remote attackers to (1) modify the configuration via a request to the debug service on port 4000 or (2) delete log entries via a request to the log service on port 4001.
Advisories
Source ID Title
EUVD EUVD EUVD-2014-0800 The Festo CECX-X-C1 Modular Master Controller with CoDeSys and CECX-X-M1 Modular Controller with CoDeSys and SoftMotion do not require authentication for connections to certain TCP ports, which allows remote attackers to (1) modify the configuration via a request to the debug service on port 4000 or (2) delete log entries via a request to the log service on port 4001.
Fixes

Solution

No solution given by the vendor.


Workaround

Festo has decided not to resolve these vulnerabilities, placing critical infrastructure asset owners using this product at risk. This advisory is being published to alert critical infrastructure asset owners of the risk of using this equipment, and to increase compensating security measures if possible. Some of these compensating measures can be: * Minimize network exposure for all control system devices and/or systems, and ensure that they are not accessible from the Internet. * Locate control system networks and remote devices behind firewalls, and isolate them from the business network. * When remote access is required, use secure methods, such as Virtual Private Networks (VPNs), recognizing that VPNs may have vulnerabilities and should be updated to the most current version available. Also recognize that VPN is only as secure as the connected devices. * Investigate the practicality of configuring and deploying an intrusion detection system (IDS) to log and monitor the control system network, as well as adjacent networks. * Configure, activate, and test existing defenses, such as port security and traffic logging, among other defensive strategies in the recommended practices document listed below.

History

Wed, 02 Jul 2025 20:45:00 +0000

Type Values Removed Values Added
Title Festo CECX-X-(C1/M1) Controller Improper Authentication
References

cve-icon MITRE

Status: PUBLISHED

Assigner: icscert

Published:

Updated: 2025-07-02T20:26:44.615Z

Reserved: 2014-01-02T00:00:00

Link: CVE-2014-0769

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

Published: 2014-04-25T05:12:07.753

Modified: 2025-07-02T21:15:39.930

Link: CVE-2014-0769

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.