{
  "id": "CVE-2021-20839",
  "sourceIdentifier": "vultures@jpcert.or.jp",
  "published": "2021-11-01T02:15:06.923",
  "lastModified": "2021-11-08T19:04:52.287",
  "vulnStatus": "Analyzed",
  "descriptions": [
    {
      "lang": "en",
      "value": "Office Server Document Converter V7.2MR4 and earlier and V7.1MR7 and earlier allows a remote unauthenticated attacker to conduct an XML External Entity (XXE) attack to cause a denial of service (DoS) condition to the other servers by processing a specially crafted XML document."
    },
    {
      "lang": "es",
      "value": "Office Server Document Converter versiones V7.2MR4 y anteriores y versiones V7.1MR7 y anteriores, permiten a un atacante remoto no autenticado llevar a cabo un ataque de tipo XML External Entity (XXE) para causar una condici\u00f3n de denegaci\u00f3n de servicio (DoS) a los otros servidores al procesar un documento XML especialmente dise\u00f1ado"
    }
  ],
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        "type": "Primary",
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          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "REQUIRED",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.6
      }
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          "accessVector": "NETWORK",
          "accessComplexity": "MEDIUM",
          "authentication": "NONE",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 4.3
        },
        "baseSeverity": "MEDIUM",
        "exploitabilityScore": 8.6,
        "impactScore": 2.9,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
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      }
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  "weaknesses": [
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      "type": "Primary",
      "description": [
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          "lang": "en",
          "value": "CWE-611"
        }
      ]
    }
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  "references": [
    {
      "url": "https://jvn.jp/en/jp/JVN33453839/index.html",
      "source": "vultures@jpcert.or.jp",
      "tags": [
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://www.antenna.co.jp/news/2021/osdc72-20211027.html",
      "source": "vultures@jpcert.or.jp",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ]
    }
  ]
}