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

Vulnerability from cvelistv5 – Published: 2021-05-24 11:05 – Updated: 2024-09-16 18:43
VLAI?
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
References
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)
Create a notification for this product.
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)
Create a notification for this product.
Date Public ?
2021-05-20 00:00
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
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      "descriptions": "[{\"lang\": \"en\", \"value\": \"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.\"}, {\"lang\": \"es\", \"value\": \"En dispositivos WAGO PFC200 en diferentes versiones de firmware con paquetes especiales dise\\u00f1ados, un atacante con acceso de red al dispositivo podr\\u00eda causar una denegaci\\u00f3n de servicio para el servicio de inicio de sesi\\u00f3n del tiempo de ejecuci\\u00f3n\"}]",
      "id": "CVE-2021-21000",
      "lastModified": "2024-11-21T05:47:22.593",
      "metrics": "{\"cvssMetricV31\": [{\"source\": \"info@cert.vde.com\", \"type\": \"Secondary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L\", \"baseScore\": 5.3, \"baseSeverity\": \"MEDIUM\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"LOW\"}, \"exploitabilityScore\": 3.9, \"impactScore\": 1.4}, {\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\", \"baseScore\": 7.5, \"baseSeverity\": \"HIGH\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"HIGH\"}, \"exploitabilityScore\": 3.9, \"impactScore\": 3.6}], \"cvssMetricV2\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"2.0\", \"vectorString\": \"AV:N/AC:L/Au:N/C:N/I:N/A:P\", \"baseScore\": 5.0, \"accessVector\": \"NETWORK\", \"accessComplexity\": \"LOW\", \"authentication\": \"NONE\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"PARTIAL\"}, \"baseSeverity\": \"MEDIUM\", \"exploitabilityScore\": 10.0, \"impactScore\": 2.9, \"acInsufInfo\": false, \"obtainAllPrivilege\": false, \"obtainUserPrivilege\": false, \"obtainOtherPrivilege\": false, \"userInteractionRequired\": false}]}",
      "published": "2021-05-24T11:15:07.917",
      "references": "[{\"url\": \"https://cert.vde.com/en-us/advisories/vde-2021-014\", \"source\": \"info@cert.vde.com\", \"tags\": [\"Third Party Advisory\"]}, {\"url\": \"https://cert.vde.com/en-us/advisories/vde-2021-014\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Third Party Advisory\"]}]",
      "sourceIdentifier": "info@cert.vde.com",
      "vulnStatus": "Modified",
      "weaknesses": "[{\"source\": \"info@cert.vde.com\", \"type\": \"Secondary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-770\"}]}, {\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-770\"}]}]"
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  }
}


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Tags
Taxonomy of the tags.




Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

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.