GSD-2020-20741

Vulnerability from gsd - Updated: 2023-12-13 01:21
Details
Incorrect Access Control in Beckhoff Automation GmbH & Co. KG CX9020 with firmware version CX9020_CB3011_WEC7_HPS_v602_TC31_B4016.6 allows remote attackers to bypass authentication via the "CE Remote Display Tool" as it does not close the incoming connection on the Windows CE side if the credentials are incorrect.
Aliases
Aliases
CVE-2020-20741
To clipboard 

{
  "GSD": {
    "alias": "CVE-2020-20741",
    "description": "Incorrect Access Control in Beckhoff Automation GmbH \u0026 Co. KG CX9020 with firmware version CX9020_CB3011_WEC7_HPS_v602_TC31_B4016.6 allows remote attackers to bypass authentication via the \"CE Remote Display Tool\" as it does not close the incoming connection on the Windows CE side if the credentials are incorrect.",
    "id": "GSD-2020-20741"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2020-20741"
      ],
      "details": "Incorrect Access Control in Beckhoff Automation GmbH \u0026 Co. KG CX9020 with firmware version CX9020_CB3011_WEC7_HPS_v602_TC31_B4016.6 allows remote attackers to bypass authentication via the \"CE Remote Display Tool\" as it does not close the incoming connection on the Windows CE side if the credentials are incorrect.",
      "id": "GSD-2020-20741",
      "modified": "2023-12-13T01:21:48.754284Z",
      "schema_version": "1.4.0"
    }
  },
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      "CVE_data_meta": {
        "ASSIGNER": "cve@mitre.org",
        "ID": "CVE-2020-20741",
        "STATE": "PUBLIC"
      },
      "affects": {
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          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "n/a",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "n/a"
                        }
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      "data_type": "CVE",
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      "description": {
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            "value": "Incorrect Access Control in Beckhoff Automation GmbH \u0026 Co. KG CX9020 with firmware version CX9020_CB3011_WEC7_HPS_v602_TC31_B4016.6 allows remote attackers to bypass authentication via the \"CE Remote Display Tool\" as it does not close the incoming connection on the Windows CE side if the credentials are incorrect."
          }
        ]
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                "value": "n/a"
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      "references": {
        "reference_data": [
          {
            "name": "https://download.beckhoff.com/download/Document/product-security/Advisories/advisory-2019-006.pdf",
            "refsource": "MISC",
            "url": "https://download.beckhoff.com/download/Document/product-security/Advisories/advisory-2019-006.pdf"
          }
        ]
      }
    },
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        "nodes": [
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            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:h:beckhoff:cx9020:6.02:build_4016.6:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
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      "cve": {
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          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2020-20741"
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        "description": {
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              "value": "Incorrect Access Control in Beckhoff Automation GmbH \u0026 Co. KG CX9020 with firmware version CX9020_CB3011_WEC7_HPS_v602_TC31_B4016.6 allows remote attackers to bypass authentication via the \"CE Remote Display Tool\" as it does not close the incoming connection on the Windows CE side if the credentials are incorrect."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "NVD-CWE-Other"
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        },
        "references": {
          "reference_data": [
            {
              "name": "https://download.beckhoff.com/download/Document/product-security/Advisories/advisory-2019-006.pdf",
              "refsource": "MISC",
              "tags": [
                "Mitigation",
                "Patch",
                "Vendor Advisory"
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              "url": "https://download.beckhoff.com/download/Document/product-security/Advisories/advisory-2019-006.pdf"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 7.5,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
            "version": "2.0"
          },
          "exploitabilityScore": 10.0,
          "impactScore": 6.4,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "HIGH",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 5.9
        }
      },
      "lastModifiedDate": "2021-08-09T17:43Z",
      "publishedDate": "2021-07-23T20:15Z"
    }
  }
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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