FKIE_CVE-2017-16718

Vulnerability from fkie_nvd - Published: 2018-06-27 19:29 - Updated: 2024-11-21 03:16
Severity ?
5.9 (Medium) - CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Summary
Beckhoff TwinCAT 3 supports communication over ADS. ADS is a protocol for industrial automation in protected environments. This protocol uses user configured routes, that can be edited remotely via ADS. This special command supports encrypted authentication with username/password. The encryption uses a fixed key, that could be extracted by an attacker. Precondition of the exploitation of this weakness is network access at the moment a route is added.
References
ics-cert@hq.dhs.govhttps://download.beckhoff.com/download/Document/product-security/Advisories/advisory-2017-002.pdfMitigation, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://download.beckhoff.com/download/Document/product-security/Advisories/advisory-2017-002.pdfMitigation, Vendor Advisory
Impacted products
Vendor Product Version
beckhoff twincat 3.0
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:beckhoff:twincat:3.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "934FE489-5AC5-4BD9-B301-25C6FCC14206",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Beckhoff TwinCAT 3 supports communication over ADS. ADS is a protocol for industrial automation in protected environments. This protocol uses user configured routes, that can be edited remotely via ADS. This special command supports encrypted authentication with username/password. The encryption uses a fixed key, that could be extracted by an attacker. Precondition of the exploitation of this weakness is network access at the moment a route is added."
    },
    {
      "lang": "es",
      "value": "Beckhoff TwinCAT 3 soporta comunicaciones mediante ADS. ADS es un protocolo para la automatizaci\u00f3n industrial en entornos protegidos. Este protocolo emplea rutas configuradas que pueden ser editadas de forma remota mediante ADS. Este comando especial soporta la autenticaci\u00f3n cifrada con un nombre de usuario y una contrase\u00f1a. El cifrado emplea una clave fija que podr\u00eda ser extra\u00edda por un atacante. Una precondici\u00f3n para la explotaci\u00f3n de esta debilidad es contar con acceso de red en el momento en el que se a\u00f1ade una ruta."
    }
  ],
  "id": "CVE-2017-16718",
  "lastModified": "2024-11-21T03:16:50.853",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 4.3,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:N",
          "version": "2.0"
        },
        "exploitabilityScore": 8.6,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 5.9,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "version": "3.0"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2018-06-27T19:29:00.233",
  "references": [
    {
      "source": "ics-cert@hq.dhs.gov",
      "tags": [
        "Mitigation",
        "Vendor Advisory"
      ],
      "url": "https://download.beckhoff.com/download/Document/product-security/Advisories/advisory-2017-002.pdf"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Mitigation",
        "Vendor Advisory"
      ],
      "url": "https://download.beckhoff.com/download/Document/product-security/Advisories/advisory-2017-002.pdf"
    }
  ],
  "sourceIdentifier": "ics-cert@hq.dhs.gov",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-522"
        }
      ],
      "source": "ics-cert@hq.dhs.gov",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-327"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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  • 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.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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