GSD-2021-21002

Vulnerability from gsd - Updated: 2023-12-13 01:23
Details
In Phoenix Contact FL COMSERVER UNI in versions < 2.40 a invalid Modbus exception response can lead to a temporary denial of service.
Aliases
Aliases
CVE-2021-21002
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{
  "GSD": {
    "alias": "CVE-2021-21002",
    "description": "In Phoenix Contact FL COMSERVER UNI in versions \u003c 2.40 a invalid Modbus exception response can lead to a temporary denial of service.",
    "id": "GSD-2021-21002"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2021-21002"
      ],
      "details": "In Phoenix Contact FL COMSERVER UNI in versions \u003c 2.40 a invalid Modbus exception response can lead to a temporary denial of service.",
      "id": "GSD-2021-21002",
      "modified": "2023-12-13T01:23:10.574470Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "info@cert.vde.com",
        "DATE_PUBLIC": "2021-06-23T10:00:00.000Z",
        "ID": "CVE-2021-21002",
        "STATE": "PUBLIC",
        "TITLE": "Denial of Service in Phoenix Contact FL COMSERVER UNI products"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "FL COMSERVER",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "\u003c",
                          "version_name": "UNI 232/422/485 (2313452)",
                          "version_value": "2.40"
                        },
                        {
                          "version_affected": "\u003c",
                          "version_name": "UNI 232/422/485-T (2904817)",
                          "version_value": "2.40"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "Phoenix Contact"
            }
          ]
        }
      },
      "credit": [
        {
          "lang": "eng",
          "value": "This vulnerability was found by Petri Tuomio and reported to PHOENIX CONTACT by Waertsilae PSIRT. PHOENIX CONTACT thanks CERT@VDE for the coordination and support with this publication."
        }
      ],
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            "value": "In Phoenix Contact FL COMSERVER UNI in versions \u003c 2.40 a invalid Modbus exception response can lead to a temporary denial of service."
          }
        ]
      },
      "generator": {
        "engine": "Vulnogram 0.0.9"
      },
      "impact": {
        "cvss": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        }
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "CWE-772 Missing Release of Resource after Effective Lifetime"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://cert.vde.com/en-us/advisories/vde-2021-022",
            "refsource": "CONFIRM",
            "url": "https://cert.vde.com/en-us/advisories/vde-2021-022"
          }
        ]
      },
      "solution": [
        {
          "lang": "eng",
          "value": "Upgrade to the latest firmware, fixed firmware includes versions \u003e= 2.41."
        }
      ],
      "source": {
        "advisory": "VDE-2021-022",
        "defect": [
          "VDE-2021-022"
        ],
        "discovery": "EXTERNAL"
      }
    },
    "nvd.nist.gov": {
      "configurations": {
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                    "cpe_name": [],
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          "reference_data": [
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              "tags": [
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              "url": "https://cert.vde.com/en-us/advisories/vde-2021-022"
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      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 5.0,
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
            "version": "2.0"
          },
          "exploitabilityScore": 10.0,
          "impactScore": 2.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
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            "availabilityImpact": "HIGH",
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            "confidentialityImpact": "NONE",
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            "privilegesRequired": "NONE",
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            "userInteraction": "NONE",
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          "impactScore": 3.6
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      },
      "lastModifiedDate": "2021-07-01T19:43Z",
      "publishedDate": "2021-06-25T19:15Z"
    }
  }
}


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