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CVE-2023-23363

Estado: ModificadaCrítica (9.8)—

A buffer copy without checking size of input vulnerability has been reported to affect QNAP operating system. If exploited, the vulnerability possibly allows remote users to execute code via unspecified vectors.

We have already fixed the vulnerability in the following versions: QTS 4.3.6.2441 build 20230621 and later QTS 4.3.3.2420 build 20230621 and later QTS 4.2.6 build 20230621 and later QTS 4.3.4.2451 build 20230621 and later

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Qnap — QTS

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2023-23363",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2023-23363",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2024-09-24T18:10:24.884937Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security@qnapsecurity.com.tw",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 8.1,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 2.2
      },
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 9.8,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "security@qnapsecurity.com.tw",
      "affectedData": [
        {
          "vendor": "QNAP Systems Inc.",
          "product": "QTS",
          "versions": [
            {
              "status": "affected",
              "version": "4.3.*",
              "lessThan": "4.3.6.2441 build 20230621",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "4.3.*",
              "lessThan": "4.3.3.2420 build 20230621",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "4.2.*",
              "lessThan": "4.2.6 build 20230621",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "4.3.*",
              "lessThan": "4.3.4.2451 build 20230621",
              "versionType": "custom"
            },
            {
              "status": "unaffected",
              "version": "4.5.*"
            },
            {
              "status": "unaffected",
              "version": "5.*.*"
            }
          ],
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2023-09-22T04:15:53.873",
  "references": [
    {
      "url": "https://www.qnap.com/en/security-advisory/qsa-23-25",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "security@qnapsecurity.com.tw"
    },
    {
      "url": "https://www.qnap.com/en/security-advisory/qsa-23-25",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security@qnapsecurity.com.tw",
      "description": [
        {
          "lang": "en",
          "value": "CWE-120"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-120"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A buffer copy without checking size of input vulnerability has been reported to affect QNAP operating system. If exploited, the vulnerability possibly allows remote users to execute code via unspecified vectors.\n\nWe have already fixed the vulnerability in the following versions:\nQTS 4.3.6.2441 build 20230621 and later\nQTS 4.3.3.2420 build 20230621 and later\nQTS 4.2.6 build 20230621 and later\nQTS 4.3.4.2451 build 20230621 and later\n"
    },
    {
      "lang": "es",
      "value": "Se ha informado que una copia del búfer sin verificar el tamaño de la vulnerabilidad de entrada afecta el sistema operativo QNAP. Si se explota, la vulnerabilidad posiblemente permita a usuarios remotos ejecutar código a través de vectores no especificados. Ya hemos solucionado la vulnerabilidad en las siguientes versiones: QTS 4.3.6.2441 compilación 20230621 y posteriores QTS 4.3.3.2420 compilación 20230621 y posteriores QTS 4.2.6 compilación 20230621 y posteriores QTS 4.3.4.2451 compilación 20230621 y posteriores"
    }
  ],
  "lastModified": "2026-06-17T05:36:56.640",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:qnap:qts:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "FF829E0D-CBBA-45EF-940E-54184E4E7722",
              "versionEndExcluding": "4.3.3.2420",
              "versionStartIncluding": "4.3.3"
            },
            {
              "criteria": "cpe:2.3:o:qnap:qts:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "8A2F97D5-A567-4275-AEB7-D912F42E9979",
              "versionEndExcluding": "4.3.4.245",
              "versionStartIncluding": "4.3.4"
            },
            {
              "criteria": "cpe:2.3:o:qnap:qts:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "C73E588B-C0D2-4BF4-9D76-A902489E58C6",
              "versionEndExcluding": "4.3.6.2441",
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            }
          ],
          "operator": "OR"
        }
      ]
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  ],
  "sourceIdentifier": "security@qnapsecurity.com.tw"
}