Vulnerability-Lookup

VAR-202105-0535

Vulnerability from variot - Updated: 2025-08-16 23:05

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. plural WAGO Product devices contain vulnerabilities in resource allocation without restrictions or throttling.Denial of service (DoS) It may be put into a state

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CVE-2021-21000 (GCVE-0-2021-21000)

Vulnerability from cvelistv5 – Published: 2021-05-24 11:05 – Updated: 2024-09-16 18:43

Title

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

Summary

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.

Severity ?

5.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

CWE

CWE-770 - Allocation of Resources Without Limits or Throttling

Assigner

CERTVDE

References

URL

Tags

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

x_refsource_CONFIRM

Impacted products

Vendor

Product

Version

WAGO

Series PFC200 Controller

Affected: 750-823 , ≤ FW07 (custom)
Affected: 750-829 , ≤ FW14 (custom)
Affected: 750-831/000-00x , ≤ FW14 (custom)
Affected: 750-832/000-00x , ≤ FW06 (custom)
Affected: 750-852 , ≤ FW14 (custom)
Affected: 750-862 , ≤ FW07 (custom)
Affected: 750-880/0xx-xxx , ≤ FW15 (custom)
Affected: 750-881 , ≤ FW14 (custom)
Affected: 750-882 , ≤ FW14 (custom)
Affected: 750-885/0xx-xxx , ≤ FW14 (custom)
Affected: 750-889 , ≤ FW14 (custom)
Affected: 750-890/0xx-xxx , ≤ FW07 (custom)
Affected: 750-891 , ≤ FW07 (custom)
Affected: 750-893 , ≤ FW07 (custom)

WAGO

Series Ethernet Controller

Affected: 750-8202/xxx-xxx , < 03.06.19 (18) (custom)
Affected: 750-8203/xxx-xxx , < 03.06.19 (18) (custom)
Affected: 750-8204/xxx-xxx , < 03.06.19 (18) (custom)
Affected: 750-8206/xxx-xxx , < 03.06.19 (18) (custom)
Affected: 750-8207/xxx-xxx , < 03.06.19 (18) (custom)
Affected: 750-8208/xxx-xxx , < 03.06.19 (18) (custom)
Affected: 750-8210/xxx-xxx , < 03.06.19 (18) (custom)
Affected: 750-8211/xxx-xxx , < 03.06.19 (18) (custom)
Affected: 750-8212/xxx-xxx , < 03.06.19 (18) (custom)
Affected: 750-8213/xxx-xxx , < 03.06.19 (18) (custom)
Affected: 750-8214/xxx-xxx , < 03.06.19 (18) (custom)
Affected: 750-8216/xxx-xxx , < 03.06.19 (18) (custom)
Affected: 750-8217/xxx-xxx , < 03.06.19 (18) (custom)

Credits

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

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

VAR-202105-0535

CVE-2021-21000 (GCVE-0-2021-21000)

Tags

Sightings

Nomenclature