GSD-2021-34586

Vulnerability from gsd - Updated: 2023-12-13 01:23
Details
In the CODESYS V2 web server prior to V1.1.9.22 crafted web server requests may cause a Null pointer dereference in the CODESYS web server and may result in a denial-of-service condition.
Aliases
Aliases
CVE-2021-34586
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{
  "GSD": {
    "alias": "CVE-2021-34586",
    "description": "In the CODESYS V2 web server prior to V1.1.9.22 crafted web server requests may cause a Null pointer dereference in the CODESYS web server and may result in a denial-of-service condition.",
    "id": "GSD-2021-34586"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2021-34586"
      ],
      "details": "In the CODESYS V2 web server prior to V1.1.9.22 crafted web server requests may cause a Null pointer dereference in the CODESYS web server and may result in a denial-of-service condition.",
      "id": "GSD-2021-34586",
      "modified": "2023-12-13T01:23:14.677400Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
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      "CVE_data_meta": {
        "ASSIGNER": "info@cert.vde.com",
        "DATE_PUBLIC": "2021-10-25T14:00:00.000Z",
        "ID": "CVE-2021-34586",
        "STATE": "PUBLIC",
        "TITLE": "CODESYS V2 web server: crafted requests could trigger a null pointer dereference (DoS)"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "CODESYS V2",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "\u003c",
                          "version_name": "all web servers",
                          "version_value": "V1.1.9.22"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "CODESYS"
            }
          ]
        }
      },
      "credit": [
        {
          "lang": "eng",
          "value": "This vulnerability was discovered by Tenable Research."
        }
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          }
        ]
      },
      "generator": {
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      },
      "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-476 NULL Pointer Dereference"
              }
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          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://customers.codesys.com/index.php?eID=dumpFile\u0026t=f\u0026f=16876\u0026token=a3f1d937f95e7034879f4f2ea8e5a99b168256a7\u0026download=",
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          },
          {
            "name": "https://www.tenable.com/security/research/tra-2021-47",
            "refsource": "MISC",
            "url": "https://www.tenable.com/security/research/tra-2021-47"
          }
        ]
      },
      "solution": [
        {
          "lang": "eng",
          "value": "CODESYS GmbH has released version V1.1.9.22 of the CODESYS V2 web server to solve the noted vulnerability issues. This version of the CODESYS V2 web server is also part of the CODESYS Development System setup version V2.3.9.68."
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      }
    },
    "nvd.nist.gov": {
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        "nodes": [
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            "children": [],
            "cpe_match": [
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                "cpe23Uri": "cpe:2.3:a:codesys:codesys:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "1.1.9.22",
                "vulnerable": true
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          "ID": "CVE-2021-34586"
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        "description": {
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              "lang": "en",
              "value": "In the CODESYS V2 web server prior to V1.1.9.22 crafted web server requests may cause a Null pointer dereference in the CODESYS web server and may result in a denial-of-service condition."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
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                  "value": "CWE-476"
                },
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                }
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        },
        "references": {
          "reference_data": [
            {
              "name": "https://customers.codesys.com/index.php?eID=dumpFile\u0026t=f\u0026f=16876\u0026token=a3f1d937f95e7034879f4f2ea8e5a99b168256a7\u0026download=",
              "refsource": "CONFIRM",
              "tags": [
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            },
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              "tags": [
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                "Third Party Advisory"
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              "url": "https://www.tenable.com/security/research/tra-2021-47"
            }
          ]
        }
      },
      "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
        },
        "baseMetricV3": {
          "cvssV3": {
            "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"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 3.6
        }
      },
      "lastModifiedDate": "2021-10-28T18:01Z",
      "publishedDate": "2021-10-26T10:15Z"
    }
  }
}


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