FKIE_CVE-2019-8271

Vulnerability from fkie_nvd - Published: 2019-03-08 23:29 - Updated: 2024-11-21 04:49
Severity ?
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
UltraVNC revision 1211 has a heap buffer overflow vulnerability in VNC server code inside file transfer handler, which can potentially result code execution. This attack appears to be exploitable via network connectivity. This vulnerability has been fixed in revision 1212.
References
vulnerability@kaspersky.comhttps://cert-portal.siemens.com/productcert/pdf/ssa-927095.pdfThird Party Advisory
vulnerability@kaspersky.comhttps://ics-cert.kaspersky.com/advisories/klcert-advisories/2019/03/01/klcert-19-018-ultravnc-heap-based-buffer-overflow/Third Party Advisory
vulnerability@kaspersky.comhttps://www.us-cert.gov/ics/advisories/icsa-20-161-06Third Party Advisory, US Government Resource
af854a3a-2127-422b-91ae-364da2661108https://cert-portal.siemens.com/productcert/pdf/ssa-927095.pdfThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://ics-cert.kaspersky.com/advisories/klcert-advisories/2019/03/01/klcert-19-018-ultravnc-heap-based-buffer-overflow/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.us-cert.gov/ics/advisories/icsa-20-161-06Third Party Advisory, US Government Resource
Impacted products
Vendor Product Version
uvnc ultravnc *
siemens sinumerik_access_mymachine\/p2p *
siemens sinumerik_pcu_base_win10_software\/ipc *
siemens sinumerik_pcu_base_win7_software\/ipc *
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{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:uvnc:ultravnc:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "555D034F-3D64-4ED1-9B63-F8D59199E99C",
              "versionEndExcluding": "1.2.2.3",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    },
    {
      "nodes": [
        {
          "cpeMatch": [
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              "versionEndExcluding": "4.8",
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "UltraVNC revision 1211 has a heap buffer overflow vulnerability in VNC server code inside file transfer handler, which can potentially result code execution. This attack appears to be exploitable via network connectivity. This vulnerability has been fixed in revision 1212."
    },
    {
      "lang": "es",
      "value": "UltraVNC, en su revisi\u00f3n 1211, tiene una vulnerabilidad de desbordamiento de b\u00fafer basado en memoria din\u00e1mica (heap) en el c\u00f3digo VNC del servidor dentro de un manipulador de trasferencias de archivos, lo que, potencialmente, puede resultar en la ejecuci\u00f3n de c\u00f3digo. Este ataque parece ser explotable mediante la conectividad de red. Esta vulnerabilidad se ha solucionado en la revisi\u00f3n 1212."
    }
  ],
  "id": "CVE-2019-8271",
  "lastModified": "2024-11-21T04:49:37.297",
  "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": "2019-03-08T23:29:00.717",
  "references": [
    {
      "source": "vulnerability@kaspersky.com",
      "tags": [
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      ],
      "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-927095.pdf"
    },
    {
      "source": "vulnerability@kaspersky.com",
      "tags": [
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      "url": "https://ics-cert.kaspersky.com/advisories/klcert-advisories/2019/03/01/klcert-19-018-ultravnc-heap-based-buffer-overflow/"
    },
    {
      "source": "vulnerability@kaspersky.com",
      "tags": [
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    },
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    },
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    },
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      "source": "af854a3a-2127-422b-91ae-364da2661108",
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    }
  ],
  "sourceIdentifier": "vulnerability@kaspersky.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-122"
        }
      ],
      "source": "vulnerability@kaspersky.com",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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Detection rules are retrieved from Rulezet.