cve-2021-34595
Vulnerability from cvelistv5
Published
2021-10-26 09:55
Modified
2024-09-17 03:42
Severity ?
8.1 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Summary
CODESYS V2 runtime: out-of-bounds read or write access may result in denial-of-service
References
info@cert.vde.comhttps://customers.codesys.com/index.php?eID=dumpFile&t=f&f=16878&token=e5644ec405590e66aefa62304cb8632df9fc9e9c&download=Vendor Advisory
Impacted products
CODESYSCODESYS V2
Show details on NVD website

To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T00:19:47.024Z",
          "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=16878\u0026token=e5644ec405590e66aefa62304cb8632df9fc9e9c\u0026download="
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "CODESYS V2",
          "vendor": "CODESYS",
          "versions": [
            {
              "lessThan": "V2.4.7.56",
              "status": "affected",
              "version": "Runtime Toolkit 32 bit full",
              "versionType": "custom"
            },
            {
              "lessThan": "V2.4.7.56",
              "status": "affected",
              "version": "PLCWinNT",
              "versionType": "custom"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "This issue was reported by Chen Jie and Gao Jian of NSFOCUS."
        }
      ],
      "datePublic": "2021-10-25T00:00:00",
      "descriptions": [
        {
          "lang": "en",
          "value": "A crafted request with invalid offsets may cause an out-of-bounds read or write access in CODESYS V2 Runtime Toolkit 32 Bit full and PLCWinNT prior to versions V2.4.7.56, resulting in a denial-of-service condition or local memory overwrite."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.1,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-823",
              "description": "CWE-823 Use of Out-of-range Pointer Offset",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-10-26T09:55:52",
        "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=16878\u0026token=e5644ec405590e66aefa62304cb8632df9fc9e9c\u0026download="
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "value": "CODESYS GmbH has released the following product versions to solve the noted vulnerability issue for the affected CODESYS products:\n * CODESYS Runtime Toolkit 32 bit full version V2.4.7.56\n * CODESYS PLCWinNT version V2.4.7.56. This will also be part of the CODESYS Development System setup version V2.3.9.68."
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "CODESYS V2 runtime: out-of-bounds read or write access may result in denial-of-service",
      "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-2021-34595",
          "STATE": "PUBLIC",
          "TITLE": "CODESYS V2 runtime: out-of-bounds read or write access may result in denial-of-service"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "CODESYS V2",
                      "version": {
                        "version_data": [
                          {
                            "version_affected": "\u003c",
                            "version_name": "Runtime Toolkit 32 bit full",
                            "version_value": "V2.4.7.56"
                          },
                          {
                            "version_affected": "\u003c",
                            "version_name": "PLCWinNT",
                            "version_value": "V2.4.7.56"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "CODESYS"
              }
            ]
          }
        },
        "credit": [
          {
            "lang": "eng",
            "value": "This issue was reported by Chen Jie and Gao Jian of NSFOCUS."
          }
        ],
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "A crafted request with invalid offsets may cause an out-of-bounds read or write access in CODESYS V2 Runtime Toolkit 32 Bit full and PLCWinNT prior to versions V2.4.7.56, resulting in a denial-of-service condition or local memory overwrite."
            }
          ]
        },
        "generator": {
          "engine": "Vulnogram 0.0.9"
        },
        "impact": {
          "cvss": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.1,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H",
            "version": "3.1"
          }
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-823 Use of Out-of-range Pointer Offset"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://customers.codesys.com/index.php?eID=dumpFile\u0026t=f\u0026f=16878\u0026token=e5644ec405590e66aefa62304cb8632df9fc9e9c\u0026download=",
              "refsource": "CONFIRM",
              "url": "https://customers.codesys.com/index.php?eID=dumpFile\u0026t=f\u0026f=16878\u0026token=e5644ec405590e66aefa62304cb8632df9fc9e9c\u0026download="
            }
          ]
        },
        "solution": [
          {
            "lang": "en",
            "value": "CODESYS GmbH has released the following product versions to solve the noted vulnerability issue for the affected CODESYS products:\n * CODESYS Runtime Toolkit 32 bit full version V2.4.7.56\n * CODESYS PLCWinNT version V2.4.7.56. This will also be 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-2021-34595",
    "datePublished": "2021-10-26T09:55:52.868387Z",
    "dateReserved": "2021-06-10T00:00:00",
    "dateUpdated": "2024-09-17T03:42:53.986Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2021-34595\",\"sourceIdentifier\":\"info@cert.vde.com\",\"published\":\"2021-10-26T10:15:08.070\",\"lastModified\":\"2022-10-24T16:05:55.700\",\"vulnStatus\":\"Analyzed\",\"descriptions\":[{\"lang\":\"en\",\"value\":\"A crafted request with invalid offsets may cause an out-of-bounds read or write access in CODESYS V2 Runtime Toolkit 32 Bit full and PLCWinNT prior to versions V2.4.7.56, resulting in a denial-of-service condition or local memory overwrite.\"},{\"lang\":\"es\",\"value\":\"Una petici\u00f3n dise\u00f1ada con valores no v\u00e1lidos puede causar un acceso de lectura o escritura fuera de l\u00edmites en CODESYS V2 Runtime Toolkit 32 Bit full y PLCWinNT versiones anteriores a V2.4.7.56, resultando en una condici\u00f3n de denegaci\u00f3n de servicio o una escritura excesiva de memoria local\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\",\"baseScore\":8.1,\"baseSeverity\":\"HIGH\"},\"exploitabilityScore\":2.8,\"impactScore\":5.2},{\"source\":\"info@cert.vde.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\",\"baseScore\":8.1,\"baseSeverity\":\"HIGH\"},\"exploitabilityScore\":2.8,\"impactScore\":5.2}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:L/Au:S/C:N/I:P/A:P\",\"accessVector\":\"NETWORK\",\"accessComplexity\":\"LOW\",\"authentication\":\"SINGLE\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"PARTIAL\",\"availabilityImpact\":\"PARTIAL\",\"baseScore\":5.5},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":8.0,\"impactScore\":4.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-119\"}]},{\"source\":\"info@cert.vde.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-823\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:codesys:plcwinnt:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"2.4.7.56\",\"matchCriteriaId\":\"4AD330AD-254E-4E3E-A17E-BE08305AFBA0\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:codesys:runtime_toolkit:*:*:*:*:*:*:x86:*\",\"versionEndExcluding\":\"2.4.7.56\",\"matchCriteriaId\":\"EC36E0FD-2487-4BA0-9EB8-174D30FD4DFB\"}]}]}],\"references\":[{\"url\":\"https://customers.codesys.com/index.php?eID=dumpFile\u0026t=f\u0026f=16878\u0026token=e5644ec405590e66aefa62304cb8632df9fc9e9c\u0026download=\",\"source\":\"info@cert.vde.com\",\"tags\":[\"Vendor 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.