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FKIE_CVE-2018-4852

Vulnerability from fkie_nvd - Published: 2018-07-03 14:29 - Updated: 2026-06-17 01:59
Severity
9.8 (Critical) - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
A vulnerability has been identified in SICLOCK TC100 (All versions) and SICLOCK TC400 (All versions). An attacker with network access to the device could potentially circumvent the authentication mechanism if he/she is able to obtain certain knowledge specific to the attacked device.
References
productcert@siemens.comhttp://www.securityfocus.com/bid/104672Third Party Advisory, VDB Entry
productcert@siemens.comhttps://cert-portal.siemens.com/productcert/pdf/ssa-197012.pdfMitigation, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/104672Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108https://cert-portal.siemens.com/productcert/pdf/ssa-197012.pdfMitigation, Vendor Advisory
Impacted products
Vendor Product Version
siemens siclock_tc400_firmware -
siemens siclock_tc400 -
siemens siclock_tc100_firmware -
siemens siclock_tc100 -
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "SICLOCK TC100, SICLOCK TC400",
          "vendor": "Siemens AG",
          "versions": [
            {
              "status": "affected",
              "version": "SICLOCK TC100 : All versions"
            },
            {
              "status": "affected",
              "version": "SICLOCK TC400 : All versions"
            }
          ]
        }
      ],
      "source": "productcert@siemens.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:siemens:siclock_tc400_firmware:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "623964CC-A572-43D4-B1A8-728BBFDDCE80",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        },
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:siemens:siclock_tc400:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "6BCF92CE-8978-409E-B37B-B8CFBD070450",
              "vulnerable": false
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:siemens:siclock_tc100_firmware:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "1DBC06E1-89FB-4A17-A144-EC08C55E3301",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        },
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:siemens:siclock_tc100:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "CF13B571-98B9-4632-A275-A835DDCB5AD1",
              "vulnerable": false
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability has been identified in SICLOCK TC100 (All versions) and SICLOCK TC400 (All versions). An attacker with network access to the device could potentially circumvent the authentication mechanism if he/she is able to obtain certain knowledge specific to the attacked device."
    },
    {
      "lang": "es",
      "value": "Se ha identificado una vulnerabilidad en SICLOCK TC100 (todas las versiones) y SICLOCK TC400 (todas las versiones). Un atacante con acceso de red al dispositivo podr\u00eda omitir el mecanismo de autenticaci\u00f3n si dicho atacante puede obtener informaci\u00f3n espec\u00edfica del dispositivo atacado."
    }
  ],
  "id": "CVE-2018-4852",
  "lastModified": "2026-06-17T01:59:10.313",
  "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
      }
    ],
    "cvssMetricV30": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 9.8,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.0"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2018-07-03T14:29:00.290",
  "references": [
    {
      "source": "productcert@siemens.com",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "http://www.securityfocus.com/bid/104672"
    },
    {
      "source": "productcert@siemens.com",
      "tags": [
        "Mitigation",
        "Vendor Advisory"
      ],
      "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-197012.pdf"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "http://www.securityfocus.com/bid/104672"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Mitigation",
        "Vendor Advisory"
      ],
      "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-197012.pdf"
    }
  ],
  "sourceIdentifier": "productcert@siemens.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-288"
        }
      ],
      "source": "productcert@siemens.com",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-287"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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