cve-2021-34586
Vulnerability from cvelistv5
Published
2021-10-26 09:55
Modified
2024-09-17 03:53
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
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.
References
info@cert.vde.comhttps://customers.codesys.com/index.php?eID=dumpFile&t=f&f=16876&token=a3f1d937f95e7034879f4f2ea8e5a99b168256a7&download=Vendor Advisory
info@cert.vde.comhttps://www.tenable.com/security/research/tra-2021-47Exploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://customers.codesys.com/index.php?eID=dumpFile&t=f&f=16876&token=a3f1d937f95e7034879f4f2ea8e5a99b168256a7&download=Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.tenable.com/security/research/tra-2021-47Exploit, Third Party Advisory
Impacted products
Vendor Product Version
CODESYS CODESYS V2 Version: all web servers   < V1.1.9.22
 Create a notification for this product.
Show details on NVD website

To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T00:19:47.010Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://customers.codesys.com/index.php?eID=dumpFile\u0026t=f\u0026f=16876\u0026token=a3f1d937f95e7034879f4f2ea8e5a99b168256a7\u0026download="
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://www.tenable.com/security/research/tra-2021-47"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "CODESYS V2",
          "vendor": "CODESYS",
          "versions": [
            {
              "lessThan": "V1.1.9.22",
              "status": "affected",
              "version": "all web servers",
              "versionType": "custom"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "This vulnerability was discovered by Tenable Research."
        }
      ],
      "datePublic": "2021-10-25T00:00:00",
      "descriptions": [
        {
          "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."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "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"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-476",
              "description": "CWE-476 NULL Pointer Dereference",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-10-26T19:06:10",
        "orgId": "270ccfa6-a436-4e77-922e-914ec3a9685c",
        "shortName": "CERTVDE"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://customers.codesys.com/index.php?eID=dumpFile\u0026t=f\u0026f=16876\u0026token=a3f1d937f95e7034879f4f2ea8e5a99b168256a7\u0026download="
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://www.tenable.com/security/research/tra-2021-47"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "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"
      },
      "title": "CODESYS V2 web server: crafted requests could trigger a null pointer dereference (DoS)",
      "x_generator": {
        "engine": "Vulnogram 0.0.9"
      },
      "x_legacyV4Record": {
        "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."
          }
        ],
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "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."
            }
          ]
        },
        "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-476 NULL Pointer Dereference"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://customers.codesys.com/index.php?eID=dumpFile\u0026t=f\u0026f=16876\u0026token=a3f1d937f95e7034879f4f2ea8e5a99b168256a7\u0026download=",
              "refsource": "CONFIRM",
              "url": "https://customers.codesys.com/index.php?eID=dumpFile\u0026t=f\u0026f=16876\u0026token=a3f1d937f95e7034879f4f2ea8e5a99b168256a7\u0026download="
            },
            {
              "name": "https://www.tenable.com/security/research/tra-2021-47",
              "refsource": "MISC",
              "url": "https://www.tenable.com/security/research/tra-2021-47"
            }
          ]
        },
        "solution": [
          {
            "lang": "en",
            "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"
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "270ccfa6-a436-4e77-922e-914ec3a9685c",
    "assignerShortName": "CERTVDE",
    "cveId": "CVE-2021-34586",
    "datePublished": "2021-10-26T09:55:49.885522Z",
    "dateReserved": "2021-06-10T00:00:00",
    "dateUpdated": "2024-09-17T03:53:13.043Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2021-34586\",\"sourceIdentifier\":\"info@cert.vde.com\",\"published\":\"2021-10-26T10:15:07.957\",\"lastModified\":\"2024-11-21T06:10:45.550\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"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.\"},{\"lang\":\"es\",\"value\":\"En el servidor web de CODESYS V2 versiones anteriores a 1.1.9.22, unas peticiones del servidor web dise\u00f1adas pueden causar una desreferencia de puntero Null en el servidor web de CODESYS y puede resultar en una condici\u00f3n de denegaci\u00f3n de servicio\"}],\"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: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},{\"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}]},\"weaknesses\":[{\"source\":\"info@cert.vde.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-476\"}]},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-476\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:codesys:codesys:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"1.1.9.22\",\"matchCriteriaId\":\"00DD970C-3E55-4EDC-A335-3C71C19B0E99\"}]}]}],\"references\":[{\"url\":\"https://customers.codesys.com/index.php?eID=dumpFile\u0026t=f\u0026f=16876\u0026token=a3f1d937f95e7034879f4f2ea8e5a99b168256a7\u0026download=\",\"source\":\"info@cert.vde.com\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://www.tenable.com/security/research/tra-2021-47\",\"source\":\"info@cert.vde.com\",\"tags\":[\"Exploit\",\"Third Party Advisory\"]},{\"url\":\"https://customers.codesys.com/index.php?eID=dumpFile\u0026t=f\u0026f=16876\u0026token=a3f1d937f95e7034879f4f2ea8e5a99b168256a7\u0026download=\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://www.tenable.com/security/research/tra-2021-47\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Exploit\",\"Third Party Advisory\"]}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.