CVE-2017-3850 (GCVE-0-2017-3850)

Vulnerability from cvelistv5 – Published: 2017-03-21 16:00 – Updated: 2024-08-05 14:39
VLAI
Summary
A vulnerability in the Autonomic Networking Infrastructure (ANI) feature of Cisco IOS Software (15.4 through 15.6) and Cisco IOS XE Software (3.7 through 3.18, and 16) could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. The vulnerability is due to incomplete input validation on certain crafted packets. An attacker could exploit this vulnerability by sending a crafted IPv6 packet to a device that is running a Cisco IOS Software or Cisco IOS XE Software release that supports the ANI feature. A device must meet two conditions to be affected by this vulnerability: (1) the device must be running a version of Cisco IOS Software or Cisco IOS XE Software that supports ANI (regardless of whether ANI is configured); and (2) the device must have a reachable IPv6 interface. An exploit could allow the attacker to cause the affected device to reload. Cisco Bug IDs: CSCvc42729.
CWE
  • CWE-20 - Denial of Service Vulnerability
References
URL Tags
https://tools.cisco.com/security/center/content/C… x_refsource_CONFIRM
http://www.securitytracker.com/id/1038065 vdb-entryx_refsource_SECTRACK
http://www.securityfocus.com/bid/96971 vdb-entryx_refsource_BID
Impacted products
Vendor Product Version CPE status
n/a Cisco IOS and IOS XE Affected: Cisco IOS and IOS XE
Date Public
2017-03-21 00:00
Show details on NVD website

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              "negate": false,
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          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability in the Autonomic Networking Infrastructure (ANI) feature of Cisco IOS Software (15.4 through 15.6) and Cisco IOS XE Software (3.7 through 3.18, and 16) could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. The vulnerability is due to incomplete input validation on certain crafted packets. An attacker could exploit this vulnerability by sending a crafted IPv6 packet to a device that is running a Cisco IOS Software or Cisco IOS XE Software release that supports the ANI feature. A device must meet two conditions to be affected by this vulnerability: (1) the device must be running a version of Cisco IOS Software or Cisco IOS XE Software that supports ANI (regardless of whether ANI is configured); and (2) the device must have a reachable IPv6 interface. An exploit could allow the attacker to cause the affected device to reload. Cisco Bug IDs: CSCvc42729."
        },
        {
          "lang": "es",
          "value": "Una vulnerabilidad en la Autonomic Networking Infrastructure (ANI) caracter\u00edstica del Software Cisco IOS (15.4 en versiones hasta 15.6) y software Cisco IOS XE (3.7 en versiones hasta 3.18 y 16) podr\u00eda permitir a un atacante remoto no autenticado, provocar una denegaci\u00f3n de servicio (DoS). La vulnerabilidad se debe a la validaci\u00f3n incompleta de los paquetes manipulados. Un atacante podr\u00eda explotar esta vulnerabilidad enviando paquete IPv6 manipulado a un dispositivo que ejecuta un software Cisco IOS o software Cisco IOS XE que soporta la funci\u00f3n ANI. Un dispositivo debe cumplir dos condiciones para ser afectado por esta vulnerabilidad: (1) el dispositivo debe estar ejecutando una versi\u00f3n de software Cisco o software Cisco IOS XE que soporta ANI (Independientemente de si ANI est\u00e1 configurado); Y (2) el dispositivo debe tener una interfaz IPv6 accesible. Un explotaci\u00f3n podr\u00eda permitir al atacante hacer que el dispositivo afectado vuelva a cargar. Cisco Bug IDs: CSCvc42729."
        }
      ],
      "id": "CVE-2017-3850",
      "lastModified": "2024-11-21T03:26:14.433",
      "metrics": {
        "cvssMetricV2": [
          {
            "acInsufInfo": false,
            "baseSeverity": "HIGH",
            "cvssData": {
              "accessComplexity": "MEDIUM",
              "accessVector": "NETWORK",
              "authentication": "NONE",
              "availabilityImpact": "COMPLETE",
              "baseScore": 7.1,
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:C",
              "version": "2.0"
            },
            "exploitabilityScore": 8.6,
            "impactScore": 6.9,
            "obtainAllPrivilege": false,
            "obtainOtherPrivilege": false,
            "obtainUserPrivilege": false,
            "source": "nvd@nist.gov",
            "type": "Primary",
            "userInteractionRequired": false
          }
        ],
        "cvssMetricV30": [
          {
            "cvssData": {
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              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 5.9,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
              "version": "3.0"
            },
            "exploitabilityScore": 2.2,
            "impactScore": 3.6,
            "source": "nvd@nist.gov",
            "type": "Primary"
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        ]
      },
      "published": "2017-03-21T16:59:00.257",
      "references": [
        {
          "source": "ykramarz@cisco.com",
          "tags": [
            "Third Party Advisory",
            "VDB Entry"
          ],
          "url": "http://www.securityfocus.com/bid/96971"
        },
        {
          "source": "ykramarz@cisco.com",
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            "VDB Entry"
          ],
          "url": "http://www.securitytracker.com/id/1038065"
        },
        {
          "source": "ykramarz@cisco.com",
          "tags": [
            "Mitigation",
            "Vendor Advisory"
          ],
          "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170320-aniipv6"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
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          ],
          "url": "http://www.securityfocus.com/bid/96971"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
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          ],
          "url": "http://www.securitytracker.com/id/1038065"
        },
        {
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          "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170320-aniipv6"
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      ],
      "sourceIdentifier": "ykramarz@cisco.com",
      "vulnStatus": "Modified",
      "weaknesses": [
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              "value": "CWE-20"
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          "source": "ykramarz@cisco.com",
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        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "A vulnerability in the Autonomic Networking Infrastructure (ANI) feature of Cisco IOS Software (15.4 through 15.6) and Cisco IOS XE Software (3.7 through 3.18, and 16) could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. The vulnerability is due to incomplete input validation on certain crafted packets. An attacker could exploit this vulnerability by sending a crafted IPv6 packet to a device that is running a Cisco IOS Software or Cisco IOS XE Software release that supports the ANI feature. A device must meet two conditions to be affected by this vulnerability: (1) the device must be running a version of Cisco IOS Software or Cisco IOS XE Software that supports ANI (regardless of whether ANI is configured); and (2) the device must have a reachable IPv6 interface. An exploit could allow the attacker to cause the affected device to reload. Cisco Bug IDs: CSCvc42729."
          },
          {
            "lang": "es",
            "value": "Una vulnerabilidad en la Autonomic Networking Infrastructure (ANI) caracter\u00edstica del Software Cisco IOS (15.4 en versiones hasta 15.6) y software Cisco IOS XE (3.7 en versiones hasta 3.18 y 16) podr\u00eda permitir a un atacante remoto no autenticado, provocar una denegaci\u00f3n de servicio (DoS). La vulnerabilidad se debe a la validaci\u00f3n incompleta de los paquetes manipulados. Un atacante podr\u00eda explotar esta vulnerabilidad enviando paquete IPv6 manipulado a un dispositivo que ejecuta un software Cisco IOS o software Cisco IOS XE que soporta la funci\u00f3n ANI. Un dispositivo debe cumplir dos condiciones para ser afectado por esta vulnerabilidad: (1) el dispositivo debe estar ejecutando una versi\u00f3n de software Cisco o software Cisco IOS XE que soporta ANI (Independientemente de si ANI est\u00e1 configurado); Y (2) el dispositivo debe tener una interfaz IPv6 accesible. Un explotaci\u00f3n podr\u00eda permitir al atacante hacer que el dispositivo afectado vuelva a cargar. Cisco Bug IDs: CSCvc42729."
          }
        ],
        "id": "CVE-2017-3850",
        "lastModified": "2026-05-13T00:24:29.033",
        "metrics": {
          "cvssMetricV2": [
            {
              "acInsufInfo": false,
              "baseSeverity": "HIGH",
              "cvssData": {
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                "accessVector": "NETWORK",
                "authentication": "NONE",
                "availabilityImpact": "COMPLETE",
                "baseScore": 7.1,
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:C",
                "version": "2.0"
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              "exploitabilityScore": 8.6,
              "impactScore": 6.9,
              "obtainAllPrivilege": false,
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              "obtainUserPrivilege": false,
              "source": "nvd@nist.gov",
              "type": "Primary",
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                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
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                "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
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              "exploitabilityScore": 2.2,
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        "published": "2017-03-21T16:59:00.257",
        "references": [
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            "source": "psirt@cisco.com",
            "tags": [
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            "url": "http://www.securityfocus.com/bid/96971"
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              "VDB Entry"
            ],
            "url": "http://www.securitytracker.com/id/1038065"
          },
          {
            "source": "psirt@cisco.com",
            "tags": [
              "Mitigation",
              "Vendor Advisory"
            ],
            "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170320-aniipv6"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory",
              "VDB Entry"
            ],
            "url": "http://www.securityfocus.com/bid/96971"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory",
              "VDB Entry"
            ],
            "url": "http://www.securitytracker.com/id/1038065"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Mitigation",
              "Vendor Advisory"
            ],
            "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170320-aniipv6"
          }
        ],
        "sourceIdentifier": "psirt@cisco.com",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-20"
              }
            ],
            "source": "psirt@cisco.com",
            "type": "Secondary"
          },
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-20"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    }
  }
}



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Tags
Taxonomy of the tags.


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

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Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.


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