WAGO: PFC200 Denial of Service due to the number of connections to the runtime

5.3 CVSS

Vulnerability Description

On WAGO PFC200 devices in different firmware versions with special crafted packets an attacker with network access to the device could cause a denial of service for the login service of the runtime.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

These vulnerabilities were reported by JSC Positive Technologies (Vyacheslav Moskvin, Anton Dorfman, Sergey Fedonin, Ivan Kurnakov, Denis Goryushev). Coordination done by CERT@VDE.

References

https://cert.vde.com/en-us/advisories/vde-2021-014

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Affected Vendor

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Affected Software

Series PFC200 Controller, Series Ethernet Controller

Vulnerable Versions:

750-823, 750-829, 750-831/000-00x, 750-832/000-00x, 750-852, 750-862, 750-880/0xx-xxx, 750-881, 750-882, 750-885/0xx-xxx, 750-889, 750-890/0xx-xxx, 750-891, 750-893, 750-8202/xxx-xxx, 750-8203/xxx-xxx, 750-8204/xxx-xxx, 750-8206/xxx-xxx, 750-8207/xxx-xxx, 750-8208/xxx-xxx, 750-8210/xxx-xxx, 750-8211/xxx-xxx, 750-8212/xxx-xxx, 750-8213/xxx-xxx, 750-8214/xxx-xxx, 750-8216/xxx-xxx, 750-8217/xxx-xxx