Vulnerabilites related to ethernut - nut\/os
cve-2020-25108
Vulnerability from cvelistv5
Published
2020-12-11 22:58
Modified
2024-08-04 15:26
Severity ?
Summary
An issue was discovered in the DNS implementation in Ethernut in Nut/OS 5.1. The DNS response data length is not checked (it can be set to an arbitrary value from a packet). This may lead to successful Denial-of-Service, and possibly Remote Code Execution.
References
https://www.kb.cert.org/vuls/id/815128x_refsource_MISC
https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01x_refsource_MISC
Impacted products
Vendor Product Version
n/a n/a Version: n/a
Show details on NVD website

To clipboard 

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cve-2020-25109
Vulnerability from cvelistv5
Published
2020-12-11 22:58
Modified
2024-08-04 15:26
Severity ?
Summary
An issue was discovered in the DNS implementation in Ethernut in Nut/OS 5.1. The number of DNS queries/responses (set in a DNS header) is not checked against the data present. This may lead to successful Denial-of-Service, and possibly Remote Code Execution.
References
https://www.kb.cert.org/vuls/id/815128x_refsource_MISC
https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01x_refsource_MISC
Impacted products
Vendor Product Version
n/a n/a Version: n/a
Show details on NVD website

To clipboard 

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cve-2020-25107
Vulnerability from cvelistv5
Published
2020-12-11 22:57
Modified
2024-08-04 15:26
Severity ?
Summary
An issue was discovered in the DNS implementation in Ethernut in Nut/OS 5.1. There is no check on whether a domain name has '\0' termination. This may lead to successful Denial-of-Service, and possibly Remote Code Execution.
References
https://www.kb.cert.org/vuls/id/815128x_refsource_MISC
https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01x_refsource_MISC
Impacted products
Vendor Product Version
n/a n/a Version: n/a
Show details on NVD website

To clipboard 

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cve-2020-27213
Vulnerability from cvelistv5
Published
2023-10-10 00:00
Modified
2024-09-19 15:40
Severity ?
Summary
An issue was discovered in Ethernut Nut/OS 5.1. The code that generates Initial Sequence Numbers (ISNs) for TCP connections derives the ISN from an insufficiently random source. As a result, an attacker may be able to determine the ISN of current and future TCP connections and either hijack existing ones or spoof future ones. While the ISN generator seems to adhere to RFC 793 (where a global 32-bit counter is incremented roughly every 4 microseconds), proper ISN generation should aim to follow at least the specifications outlined in RFC 6528.
References
http://www.ethernut.de/en/download/index.html
http://lists.egnite.de/mailman/listinfo/en-nut-announce
https://www.cisa.gov/news-events/ics-advisories/icsa-21-042-01
https://www.forescout.com/resources/numberjack-weak-isn-generation-in-embedded-tcpip-stacks/
Impacted products
Vendor Product Version
n/a n/a Version: n/a
Show details on NVD website

To clipboard 

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cve-2020-25110
Vulnerability from cvelistv5
Published
2020-12-11 22:59
Modified
2024-08-04 15:26
Severity ?
Summary
An issue was discovered in the DNS implementation in Ethernut in Nut/OS 5.1. The length byte of a domain name in a DNS query/response is not checked, and is used for internal memory operations. This may lead to successful Denial-of-Service, and possibly Remote Code Execution.
References
https://www.kb.cert.org/vuls/id/815128x_refsource_MISC
https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01x_refsource_MISC
Impacted products
Vendor Product Version
n/a n/a Version: n/a
Show details on NVD website

To clipboard 

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                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
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            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
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        },
        "references": {
          "reference_data": [
            {
              "name": "https://www.kb.cert.org/vuls/id/815128",
              "refsource": "MISC",
              "url": "https://www.kb.cert.org/vuls/id/815128"
            },
            {
              "name": "https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01",
              "refsource": "MISC",
              "url": "https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
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    "assignerShortName": "mitre",
    "cveId": "CVE-2020-25110",
    "datePublished": "2020-12-11T22:59:38",
    "dateReserved": "2020-09-03T00:00:00",
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  },
  "dataType": "CVE_RECORD",
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}

Vulnerability from fkie_nvd
Published
2020-12-11 23:15
Modified
2024-11-21 05:17
Severity ?
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
An issue was discovered in the DNS implementation in Ethernut in Nut/OS 5.1. The DNS response data length is not checked (it can be set to an arbitrary value from a packet). This may lead to successful Denial-of-Service, and possibly Remote Code Execution.
References
cve@mitre.orghttps://us-cert.cisa.gov/ics/advisories/icsa-20-343-01Third Party Advisory, US Government Resource
cve@mitre.orghttps://www.kb.cert.org/vuls/id/815128Third Party Advisory, US Government Resource
af854a3a-2127-422b-91ae-364da2661108https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01Third Party Advisory, US Government Resource
af854a3a-2127-422b-91ae-364da2661108https://www.kb.cert.org/vuls/id/815128Third Party Advisory, US Government Resource
Impacted products
Vendor Product Version
ethernut nut\/os *


To clipboard 

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      "type": "Primary"
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  ]
}

Vulnerability from fkie_nvd
Published
2023-10-10 17:15
Modified
2024-11-21 05:20
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Summary
An issue was discovered in Ethernut Nut/OS 5.1. The code that generates Initial Sequence Numbers (ISNs) for TCP connections derives the ISN from an insufficiently random source. As a result, an attacker may be able to determine the ISN of current and future TCP connections and either hijack existing ones or spoof future ones. While the ISN generator seems to adhere to RFC 793 (where a global 32-bit counter is incremented roughly every 4 microseconds), proper ISN generation should aim to follow at least the specifications outlined in RFC 6528.
References
cve@mitre.orghttp://lists.egnite.de/mailman/listinfo/en-nut-announceNot Applicable
cve@mitre.orghttp://www.ethernut.de/en/download/index.htmlRelease Notes
cve@mitre.orghttps://www.cisa.gov/news-events/ics-advisories/icsa-21-042-01Third Party Advisory, US Government Resource
cve@mitre.orghttps://www.forescout.com/resources/numberjack-weak-isn-generation-in-embedded-tcpip-stacks/Exploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://lists.egnite.de/mailman/listinfo/en-nut-announceNot Applicable
af854a3a-2127-422b-91ae-364da2661108http://www.ethernut.de/en/download/index.htmlRelease Notes
af854a3a-2127-422b-91ae-364da2661108https://www.cisa.gov/news-events/ics-advisories/icsa-21-042-01Third Party Advisory, US Government Resource
af854a3a-2127-422b-91ae-364da2661108https://www.forescout.com/resources/numberjack-weak-isn-generation-in-embedded-tcpip-stacks/Exploit, Third Party Advisory
Impacted products
Vendor Product Version
ethernut nut\/os 5.1


To clipboard 

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  ],
  "id": "CVE-2020-27213",
  "lastModified": "2024-11-21T05:20:52.110",
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    {
      "source": "cve@mitre.org",
      "tags": [
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      ],
      "url": "https://www.forescout.com/resources/numberjack-weak-isn-generation-in-embedded-tcpip-stacks/"
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    {
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  "vulnStatus": "Modified",
  "weaknesses": [
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  ]
}

Vulnerability from fkie_nvd
Published
2020-12-11 23:15
Modified
2024-11-21 05:17
Severity ?
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
An issue was discovered in the DNS implementation in Ethernut in Nut/OS 5.1. The number of DNS queries/responses (set in a DNS header) is not checked against the data present. This may lead to successful Denial-of-Service, and possibly Remote Code Execution.
References
cve@mitre.orghttps://us-cert.cisa.gov/ics/advisories/icsa-20-343-01Third Party Advisory, US Government Resource
cve@mitre.orghttps://www.kb.cert.org/vuls/id/815128Third Party Advisory, US Government Resource
af854a3a-2127-422b-91ae-364da2661108https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01Third Party Advisory, US Government Resource
af854a3a-2127-422b-91ae-364da2661108https://www.kb.cert.org/vuls/id/815128Third Party Advisory, US Government Resource
Impacted products
Vendor Product Version
ethernut nut\/os *


To clipboard 

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  "id": "CVE-2020-25109",
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}

Vulnerability from fkie_nvd
Published
2020-12-11 23:15
Modified
2024-11-21 05:17
Severity ?
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
An issue was discovered in the DNS implementation in Ethernut in Nut/OS 5.1. There is no check on whether a domain name has '\0' termination. This may lead to successful Denial-of-Service, and possibly Remote Code Execution.
References
cve@mitre.orghttps://us-cert.cisa.gov/ics/advisories/icsa-20-343-01Third Party Advisory, US Government Resource
cve@mitre.orghttps://www.kb.cert.org/vuls/id/815128Third Party Advisory, US Government Resource
af854a3a-2127-422b-91ae-364da2661108https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01Third Party Advisory, US Government Resource
af854a3a-2127-422b-91ae-364da2661108https://www.kb.cert.org/vuls/id/815128Third Party Advisory, US Government Resource
Impacted products
Vendor Product Version
ethernut nut\/os *


To clipboard 

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        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2020-12-11T23:15:14.260",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory",
        "US Government Resource"
      ],
      "url": "https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory",
        "US Government Resource"
      ],
      "url": "https://www.kb.cert.org/vuls/id/815128"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory",
        "US Government Resource"
      ],
      "url": "https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory",
        "US Government Resource"
      ],
      "url": "https://www.kb.cert.org/vuls/id/815128"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-125"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

Vulnerability from fkie_nvd
Published
2020-12-11 23:15
Modified
2024-11-21 05:17
Severity ?
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
An issue was discovered in the DNS implementation in Ethernut in Nut/OS 5.1. The length byte of a domain name in a DNS query/response is not checked, and is used for internal memory operations. This may lead to successful Denial-of-Service, and possibly Remote Code Execution.
References
cve@mitre.orghttps://us-cert.cisa.gov/ics/advisories/icsa-20-343-01Third Party Advisory, US Government Resource
cve@mitre.orghttps://www.kb.cert.org/vuls/id/815128Third Party Advisory, US Government Resource
af854a3a-2127-422b-91ae-364da2661108https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01Third Party Advisory, US Government Resource
af854a3a-2127-422b-91ae-364da2661108https://www.kb.cert.org/vuls/id/815128Third Party Advisory, US Government Resource
Impacted products
Vendor Product Version
ethernut nut\/os *


To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:ethernut:nut\\/os:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "EAE45126-F2E8-49A2-A268-FB1F975F7C1D",
              "versionEndIncluding": "5.1",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "An issue was discovered in the DNS implementation in Ethernut in Nut/OS 5.1. The length byte of a domain name in a DNS query/response is not checked, and is used for internal memory operations. This may lead to successful Denial-of-Service, and possibly Remote Code Execution."
    },
    {
      "lang": "es",
      "value": "Se detect\u00f3 un problema en la implementaci\u00f3n de DNS en Ethernut en Nut/OS versi\u00f3n 5.1.\u0026#xa0;El byte de longitud de un nombre de dominio en una consulta y respuesta de DNS no se comprueba y se usa para operaciones de memoria interna.\u0026#xa0;Esto puede conllevar a una Denegaci\u00f3n de Servicio con \u00e9xito y posiblemente a una ejecuci\u00f3n de c\u00f3digo remota"
    }
  ],
  "id": "CVE-2020-25110",
  "lastModified": "2024-11-21T05:17:22.210",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "HIGH",
        "cvssData": {
          "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,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "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,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2020-12-11T23:15:14.433",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory",
        "US Government Resource"
      ],
      "url": "https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory",
        "US Government Resource"
      ],
      "url": "https://www.kb.cert.org/vuls/id/815128"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory",
        "US Government Resource"
      ],
      "url": "https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory",
        "US Government Resource"
      ],
      "url": "https://www.kb.cert.org/vuls/id/815128"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-125"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}