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CVE-2021-44162

Estado: ModificadaAlta (7.5)—

Chain Sea ai chatbot system’s specific file download function has path traversal vulnerability. The function has improper filtering of special characters in URL parameters, which allows a remote attacker to download arbitrary system files without authentication.

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)

Chinasea — QB Smart Service Robot

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2021-44162",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "twcert@cert.org.tw",
        "cvssData": {
          "scope": "UNCHANGED",
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          "baseScore": 7.5,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "twcert@cert.org.tw",
      "affectedData": [
        {
          "vendor": "Chain Sea Information Integration Co., Ltd",
          "product": "ai chatbot system",
          "versions": [
            {
              "status": "unknown",
              "version": "0"
            }
          ]
        }
      ]
    }
  ],
  "published": "2021-12-20T03:15:06.713",
  "references": [
    {
      "url": "https://www.twcert.org.tw/tw/cp-132-5397-b1f40-1.html",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "twcert@cert.org.tw"
    },
    {
      "url": "https://www.twcert.org.tw/tw/cp-132-5397-b1f40-1.html",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "twcert@cert.org.tw",
      "description": [
        {
          "lang": "en",
          "value": "CWE-22"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Chain Sea ai chatbot system’s specific file download function has path traversal vulnerability. The function has improper filtering of special characters in URL parameters, which allows a remote attacker to download arbitrary system files without authentication."
    },
    {
      "lang": "es",
      "value": "La función especifica file download de Chain Sea ai chatbot system, presenta una vulnerabilidad de salto de ruta. La función presenta un filtrado inapropiado de caracteres especiales en los parámetros de la URL, que permite a un atacante remoto descargar archivos arbitrarios del sistema sin autenticación"
    }
  ],
  "lastModified": "2026-06-17T04:11:58.680",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:chinasea:qb_smart_service_robot:-:*:*:*:*:*:*:*",
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          "operator": "OR"
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  "sourceIdentifier": "twcert@cert.org.tw"
}