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CVE-2017-6871

Status: ModifiedMedium (5.4)—

A vulnerability was discovered in Siemens SIMATIC WinCC Sm@rtClient for Android (All versions before V1.0.2.2) and SIMATIC WinCC Sm@rtClient for Android Lite (All versions before V1.0.2.2). An attacker with physical access to an unlocked mobile device, that has the affected app running, could bypass the app's authentication mechanism under certain conditions.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (2)

Siemens — Simatic Wincc Sm@rtclientSiemens — Simatic Wincc Sm@rtclient Lite

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2017-6871",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4.6,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": true,
        "impactScore": 6.4,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 3.9,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.0",
          "baseScore": 5.4,
          "attackVector": "PHYSICAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.0/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L",
          "integrityImpact": "LOW",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "LOW",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 4.7,
        "exploitabilityScore": 0.7
      }
    ]
  },
  "affected": [
    {
      "source": "productcert@siemens.com",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "SIMATIC WinCC Sm@rtClient for Android, SIMATIC WinCC Sm@rtClient Lite for Android",
          "versions": [
            {
              "status": "affected",
              "version": "SIMATIC WinCC Sm@rtClient for Android, SIMATIC WinCC Sm@rtClient Lite for Android"
            }
          ]
        }
      ]
    }
  ],
  "published": "2017-08-08T00:29:00.260",
  "references": [
    {
      "url": "http://www.securityfocus.com/bid/99582",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "productcert@siemens.com"
    },
    {
      "url": "https://www.siemens.com/cert/pool/cert/siemens_security_advisory_ssa-589378.pdf",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "productcert@siemens.com"
    },
    {
      "url": "http://www.securityfocus.com/bid/99582",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.siemens.com/cert/pool/cert/siemens_security_advisory_ssa-589378.pdf",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "productcert@siemens.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-288"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-287"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability was discovered in Siemens SIMATIC WinCC Sm@rtClient for Android (All versions before V1.0.2.2) and SIMATIC WinCC Sm@rtClient for Android Lite (All versions before V1.0.2.2). An attacker with physical access to an unlocked mobile device, that has the affected app running, could bypass the app's authentication mechanism under certain conditions."
    },
    {
      "lang": "es",
      "value": "Se ha descubierto una vulnerabilidad en Siemens SIMATIC WinCC Sm@rtClient para Android (todas las versiones anteriores a la V1.0.2.2) y SIMATIC WinCC Sm@rtClient para Android Lite (todas las versiones anteriores a la V1.0.2.2). Un atacante con acceso físico a un dispositivo móvil desbloqueado que esté ejecutando la app afectada podría eludir el mecanismo de autenticación de la app bajo ciertas condiciones."
    }
  ],
  "lastModified": "2026-06-17T01:23:15.073",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:siemens:simatic_wincc_sm\\@rtclient:*:*:*:*:*:android:*:*",
              "vulnerable": true,
              "matchCriteriaId": "2B041048-D9F4-4F84-9454-8744BF2708EF",
              "versionEndIncluding": "1.0.2.1"
            },
            {
              "criteria": "cpe:2.3:a:siemens:simatic_wincc_sm\\@rtclient_lite:*:*:*:*:*:android:*:*",
              "vulnerable": true,
              "matchCriteriaId": "F92BEB88-D33F-40EB-8D22-9E86160336E0",
              "versionEndIncluding": "1.0.2.1"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "productcert@siemens.com"
}