fkie_cve-2021-1311
Vulnerability from fkie_nvd
Published
2021-01-13 22:15
Modified
2024-11-21 05:44
Summary
A vulnerability in the reclaim host role feature of Cisco Webex Meetings and Cisco Webex Meetings Server could allow an authenticated, remote attacker to take over the host role during a meeting. This vulnerability is due to a lack of protection against brute forcing of the host key. An attacker could exploit this vulnerability by sending crafted requests to a vulnerable Cisco Webex Meetings or Webex Meetings Server site. A successful exploit would require the attacker to have access to join a Webex meeting, including applicable meeting join links and passwords. A successful exploit could allow the attacker to acquire or take over the host role for a meeting.



{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:cisco:webex_meetings:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "E7F9AE91-0588-4752-A061-E66378DDD1C8",
              "versionEndExcluding": "40.12.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:cisco:webex_meetings_server:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "DE22BE9B-374E-43DC-BA91-E3B9699A4C7C",
              "versionEndExcluding": "3.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:cisco:webex_meetings_server:3.0:-:*:*:*:*:*:*",
              "matchCriteriaId": "61D1081F-87E8-4E8B-BEBD-0F239E745586",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:cisco:webex_meetings_server:3.0:maintenance_release1:*:*:*:*:*:*",
              "matchCriteriaId": "8D138973-02B0-4FEC-A646-FF1278DA1EDF",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:cisco:webex_meetings_server:3.0:maintenance_release2:*:*:*:*:*:*",
              "matchCriteriaId": "30B55A5B-8C5E-4ECB-9C85-A8A3A3030850",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:cisco:webex_meetings_server:3.0:maintenance_release3:*:*:*:*:*:*",
              "matchCriteriaId": "14DBEC10-0641-441C-BE15-8F72C1762DCE",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:cisco:webex_meetings_server:3.0:maintenance_release4:*:*:*:*:*:*",
              "matchCriteriaId": "4646849B-8190-4798-833C-F367E28C1881",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:cisco:webex_meetings_server:4.0:-:*:*:*:*:*:*",
              "matchCriteriaId": "4D6CF856-093A-4E89-A71D-50A2887C265B",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:cisco:webex_meetings_server:4.0:maintenance_release1:*:*:*:*:*:*",
              "matchCriteriaId": "B36A9043-0621-43CD-BFCD-66529F937859",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:cisco:webex_meetings_server:4.0:maintenance_release2:*:*:*:*:*:*",
              "matchCriteriaId": "8842B42E-C412-4356-9F54-DFC53B683D3E",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:cisco:webex_meetings_server:4.0:maintenance_release3:*:*:*:*:*:*",
              "matchCriteriaId": "D25BC647-C569-46E5-AD45-7E315EBEB784",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability in the reclaim host role feature of Cisco Webex Meetings and Cisco Webex Meetings Server could allow an authenticated, remote attacker to take over the host role during a meeting. This vulnerability is due to a lack of protection against brute forcing of the host key. An attacker could exploit this vulnerability by sending crafted requests to a vulnerable Cisco Webex Meetings or Webex Meetings Server site. A successful exploit would require the attacker to have access to join a Webex meeting, including applicable meeting join links and passwords. A successful exploit could allow the attacker to acquire or take over the host role for a meeting."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad en la funcionalidad reclaim host role de host de Cisco Webex Meetings y Cisco Webex Meetings Server, podr\u00eda permitir a un atacante remoto autenticado se haga cargo de la funci\u00f3n de host durante una reuni\u00f3n.\u0026#xa0;Esta vulnerabilidad se debe a la falta de protecci\u00f3n contra la fuerza bruta de la clave del host.\u0026#xa0;Un atacante podr\u00eda explotar esta vulnerabilidad enviando solicitudes dise\u00f1adas a un sitio vulnerable de Cisco Webex Meetings o Webex Meetings Server.\u0026#xa0;Una explotaci\u00f3n con \u00e9xito requerir\u00eda que el atacante tuviera acceso para unirse a una reuni\u00f3n de Webex, incluidos los v\u00ednculos y las contrase\u00f1as correspondientes para unirse a la reuni\u00f3n.\u0026#xa0;Una explotaci\u00f3n con \u00e9xito podr\u00eda permitir al atacante adquirir o asumir el rol de anfitri\u00f3n de una reuni\u00f3n."
    }
  ],
  "id": "CVE-2021-1311",
  "lastModified": "2024-11-21T05:44:03.993",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "SINGLE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 5.5,
          "confidentialityImpact": "NONE",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:L/Au:S/C:N/I:P/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 8.0,
        "impactScore": 4.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 5.4,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 2.5,
        "source": "psirt@cisco.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 5.4,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 2.5,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2021-01-13T22:15:21.630",
  "references": [
    {
      "source": "psirt@cisco.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-webex-brutef-hostkey-FWRMxVF"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-webex-brutef-hostkey-FWRMxVF"
    }
  ],
  "sourceIdentifier": "psirt@cisco.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-307"
        }
      ],
      "source": "psirt@cisco.com",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-307"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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