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CVE-2016-6445

Estado: ModificadaCrítica (9.1)—

A vulnerability in the Extensible Messaging and Presence Protocol (XMPP) service of the Cisco Meeting Server (CMS) before 2.0.6 and Acano Server before 1.8.18 and 1.9.x before 1.9.6 could allow an unauthenticated, remote attacker to masquerade as a legitimate user. This vulnerability is due to the XMPP service incorrectly processing a deprecated authentication scheme. A successful exploit could allow an attacker to access the system as another user.

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)

Cisco — Meeting Server

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2016-6445",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 6.4,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:N",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 4.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
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        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.0",
          "baseScore": 9.1,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.2,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "psirt@cisco.com",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "Cisco Meeting Server (CMS) before 2.0.6 and Acano Server before 1.8.18 and 1.9.x before 1.9.6",
          "versions": [
            {
              "status": "affected",
              "version": "Cisco Meeting Server (CMS) before 2.0.6 and Acano Server before 1.8.18 and 1.9.x before 1.9.6"
            }
          ]
        }
      ]
    }
  ],
  "published": "2016-10-27T21:59:17.063",
  "references": [
    {
      "url": "http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20161012-msc",
      "tags": [
        "Mitigation",
        "Vendor Advisory"
      ],
      "source": "psirt@cisco.com"
    },
    {
      "url": "http://www.securityfocus.com/bid/93517",
      "source": "psirt@cisco.com"
    },
    {
      "url": "http://www.securitytracker.com/id/1037000",
      "source": "psirt@cisco.com"
    },
    {
      "url": "http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20161012-msc",
      "tags": [
        "Mitigation",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/bid/93517",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securitytracker.com/id/1037000",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability in the Extensible Messaging and Presence Protocol (XMPP) service of the Cisco Meeting Server (CMS) before 2.0.6 and Acano Server before 1.8.18 and 1.9.x before 1.9.6 could allow an unauthenticated, remote attacker to masquerade as a legitimate user. This vulnerability is due to the XMPP service incorrectly processing a deprecated authentication scheme. A successful exploit could allow an attacker to access the system as another user."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad en el servicio Extensible Messaging y Presence Protocol (XMPP) del Cisco Meeting Server (CMS) en versiones anteriores a 2.0.6 y Acano Server en versiones anteriores a 1.8.18 y 1.9.x en versiones anteriores a 1.9.6 podría permitir a un atacante remoto no autenticado enmascararse como un usuario legítimo. Esta vulnerabilidad se debe a que el servicio XMPP no procesa correctamente un esquema de autenticación en desuso. Una explotación exitosa puede permitir a un atacante acceder al sistema como otro usuario."
    }
  ],
  "lastModified": "2026-06-17T00:51:02.670",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:cisco:meeting_server:1.8.15:*:*:*:*:*:*:*",
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            },
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              "vulnerable": true,
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            },
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              "criteria": "cpe:2.3:a:cisco:meeting_server:1.9.0:*:*:*:*:*:*:*",
              "vulnerable": true,
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            },
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              "vulnerable": true,
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            },
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              "vulnerable": true,
              "matchCriteriaId": "C48DC084-1DD2-4878-B1DB-1035CAE3B918"
            },
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              "vulnerable": true,
              "matchCriteriaId": "1CA9A904-9AB5-4757-ABD1-0F6F933799BE"
            },
            {
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              "vulnerable": true,
              "matchCriteriaId": "8FA8A21E-97BA-4326-9F7B-FCBD480134EF"
            },
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            },
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              "matchCriteriaId": "4B80C9BA-07EC-4183-9AAD-3229913C9FD7"
            }
          ],
          "operator": "OR"
        }
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  ],
  "sourceIdentifier": "psirt@cisco.com"
}