{
  "id": "CVE-2017-3203",
  "sourceIdentifier": "cret@cert.org",
  "published": "2018-06-11T17:29:00.680",
  "lastModified": "2019-10-09T23:27:22.727",
  "vulnStatus": "Modified",
  "descriptions": [
    {
      "lang": "en",
      "value": "The Java implementations of AMF3 deserializers in Pivotal/Spring Spring-flex derive class instances from java.io.Externalizable rather than the AMF3 specification's recommendation of flash.utils.IExternalizable. A remote attacker with the ability to spoof or control an RMI server connection may be able to send serialized Java objects that execute arbitrary code when deserialized."
    },
    {
      "lang": "es",
      "value": "Las implementaciones de Java de los deserializadores AMF3 en Pivotal/Spring Spring-flex derivan las instancias de clase desde java.io.Externalizable en lugar de la recomendaci\u00f3n de especificaci\u00f3n de AMF3 de flash.utils.IExternalizable. Un atacante remoto con la habilidad de suplantar o controlar una conexi\u00f3n de servidor RMI podr\u00eda ser capaz de enviar objetos Java serializados que ejecutan c\u00f3digo arbitrario al deserializarse."
    }
  ],
  "metrics": {
    "cvssMetricV30": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "3.0",
          "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "attackVector": "NETWORK",
          "attackComplexity": "HIGH",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH",
          "baseScore": 8.1,
          "baseSeverity": "HIGH"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 5.9
      }
    ],
    "cvssMetricV2": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "2.0",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
          "accessVector": "NETWORK",
          "accessComplexity": "MEDIUM",
          "authentication": "NONE",
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "availabilityImpact": "PARTIAL",
          "baseScore": 6.8
        },
        "baseSeverity": "MEDIUM",
        "exploitabilityScore": 8.6,
        "impactScore": 6.4,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-502"
        }
      ]
    },
    {
      "source": "cret@cert.org",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-502"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:pivotal:spring-flex:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "DB86B249-96C3-4EC1-99F2-4E5C7299B808"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "http://www.securityweek.com/flaws-java-amf-libraries-allow-remote-code-execution",
      "source": "cret@cert.org",
      "tags": [
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://codewhitesec.blogspot.com/2017/04/amf.html",
      "source": "cret@cert.org",
      "tags": [
        "Exploit",
        "Mitigation",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://www.kb.cert.org/vuls/id/307983",
      "source": "cret@cert.org",
      "tags": [
        "Third Party Advisory",
        "US Government Resource"
      ]
    },
    {
      "url": "https://www.securityfocus.com/bid/97376",
      "source": "cret@cert.org",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ]
    }
  ]
}