Vulnerability-Lookup

FKIE_CVE-2020-12506

Vulnerability from fkie_nvd - Published: 2020-09-30 16:15 - Updated: 2026-06-17 02:51

Severity

9.1 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
9.1 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

Summary

Improper Authentication vulnerability in WAGO 750-8XX series with FW version <= FW03 allows an attacker to change the settings of the devices by sending specifically constructed requests without authentication This issue affects: WAGO 750-362, WAGO 750-363, WAGO 750-823, WAGO 750-832/xxx-xxx, WAGO 750-862, WAGO 750-891, WAGO 750-890/xxx-xxx in versions FW03 and prior versions.

References

	URL	Tags
	info@cert.vde.com	https://cert.vde.com/en-us/advisories/vde-2020-028	Third Party Advisory
	af854a3a-2127-422b-91ae-364da2661108	https://cert.vde.com/en-us/advisories/vde-2020-028	Third Party Advisory

Impacted products

Vendor	Product	Version
wago	750-362_firmware	*
wago	750-362	-
wago	750-363_firmware	*
wago	750-363	-
wago	750-823_firmware	*
wago	750-823	-
wago	750-832_firmware	*
wago	750-832	-
wago	750-862_firmware	*
wago	750-862	-
wago	750-891_firmware	*
wago	750-891	-
wago	750-890_firmware	*
wago	750-890	-

JSON

To clipboard

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  "cveTags": [],
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      "lang": "en",
      "value": "Improper Authentication vulnerability in WAGO 750-8XX series with FW version \u003c= FW03 allows an attacker to change the settings of the devices by sending specifically constructed requests without authentication This issue affects: WAGO 750-362, WAGO 750-363, WAGO 750-823, WAGO 750-832/xxx-xxx, WAGO 750-862, WAGO 750-891, WAGO 750-890/xxx-xxx in versions FW03 and prior versions."
    },
    {
      "lang": "es",
      "value": "La vulnerabilidad de autenticaci\u00f3n inadecuada en la serie WAGO 750-8XX con versi\u00f3n FW versiones anteriores e iguales a FW03 permite a un atacante cambiar la configuraci\u00f3n de los dispositivos mediante el env\u00edo de solicitudes espec\u00edficamente construidas sin autenticaci\u00f3n Este problema afecta a: WAGO 750-362, WAGO 750-363, WAGO 750-823, WAGO 750-832/xxx-xxx, WAGO 750-862, WAGO 750-891, WAGO 750-890/xxx-xxx en versiones FW03 y anteriores."
    }
  ],
  "id": "CVE-2020-12506",
  "lastModified": "2026-06-17T02:51:55.983",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 6.4,
          "confidentialityImpact": "NONE",
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        "impactScore": 4.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
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          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "NONE",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
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        "type": "Secondary"
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      "type": "Secondary"
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      "source": "nvd@nist.gov",
      "type": "Secondary"
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  ]
}

CVE-2020-12506 (GCVE-0-2020-12506)

Vulnerability from cvelistv5 – Published: 2020-09-30 15:43 – Updated: 2024-09-17 00:06

Title

WAGO: Authentication Bypass Vulnerability in WAGO 750-36X and WAGO 750-8XX Versions <= FW03

Summary

Severity

9.1 (Critical)


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

CWE

CWE-306 - Missing Authentication for Critical Function

Assigner

CERTVDE icscert root

References

1 reference

URL	Tags
https://cert.vde.com/en-us/advisories/vde-2020-028	x_refsource_CONFIRM

Impacted products

7 products

Vendor	Product	Version
WAGO	750-362	Affected: unspecified , ≤ FW03 (custom)
WAGO	750-363	Affected: unspecified , ≤ FW03 (custom)
WAGO	750-823	Affected: unspecified , ≤ FW03 (custom)
WAGO	750-832/xxx-xxx	Affected: unspecified , ≤ FW03 (custom)
WAGO	750-862	Affected: unspecified , ≤ FW03 (custom)
WAGO	750-891	Affected: unspecified , ≤ FW03 (custom)
WAGO	750-890/xxx-xxx	Affected: unspecified , ≤ FW03 (custom)

Date Public

2020-09-29 00:00

Credits

Maxim Rupp (https://rupp.it) reported this vulnerability to WAGO. coordinated by CERT@VDE

Show details on NVD website

JSON

To clipboard

{
  "containers": {
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      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T11:56:52.087Z",
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    ],
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            {
              "lang": "eng",
              "value": "Improper Authentication vulnerability in WAGO 750-8XX series with FW version \u003c= FW03 allows an attacker to change the settings of the devices by sending specifically constructed requests without authentication This issue affects: WAGO 750-362, WAGO 750-363, WAGO 750-823, WAGO 750-832/xxx-xxx, WAGO 750-862, WAGO 750-891, WAGO 750-890/xxx-xxx in versions FW03 and prior versions."
            }
          ]
        },
        "generator": {
          "engine": "Vulnogram 0.0.9"
        },
        "impact": {
          "cvss": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.1,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H",
            "version": "3.1"
          }
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-306 Missing Authentication for Critical Function"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://cert.vde.com/en-us/advisories/vde-2020-028",
              "refsource": "CONFIRM",
              "url": "https://cert.vde.com/en-us/advisories/vde-2020-028"
            }
          ]
        },
        "solution": [
          {
            "lang": "en",
            "value": "Upgrade devices to the latest standard firmware (\u003e FW03)."
          }
        ],
        "source": {
          "advisory": "vde-2020-028",
          "defect": [
            "vde-2020-028"
          ],
          "discovery": "EXTERNAL"
        },
        "work_around": [
          {
            "lang": "en",
            "value": "Restrict network access to the device.\nDo not directly connect the device to the internet.\nDisable unused TCP/UDP ports.\nDisable web-based management ports 80/443 after the configuration phase"
          }
        ]
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "270ccfa6-a436-4e77-922e-914ec3a9685c",
    "assignerShortName": "CERTVDE",
    "cveId": "CVE-2020-12506",
    "datePublished": "2020-09-30T15:43:20.405Z",
    "dateReserved": "2020-04-30T00:00:00.000Z",
    "dateUpdated": "2024-09-17T00:06:46.518Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

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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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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FKIE_CVE-2020-12506

CVE-2020-12506 (GCVE-0-2020-12506)

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Sightings

Nomenclature

Related by attack behaviour