{
  "document": {
    "acknowledgments": [
      {
        "summary": "Cisco would like to thank the following researchers from IBM Research for reporting this vulnerability:\r\n\r\nJiyong Jang, Research Scientist and Manager\r\nDhilung Kirat, Research Scientist\r\nIan Molloy, Principal RSM and Department Head\r\nJ.R. Rao, IBM Fellow and CTO"
      }
    ],
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "notes": [
      {
        "category": "summary",
        "text": "A vulnerability in Cisco Webex Meetings and Cisco Webex Meetings Server could allow an unauthenticated, remote attacker to maintain bidirectional audio despite being expelled from an active Webex session.\r\n\r\nThe vulnerability is due to a synchronization issue between meeting and media services on a vulnerable Webex site. An attacker could exploit this vulnerability by sending crafted requests to a vulnerable Cisco Webex Meetings or Cisco Webex Meetings Server site. A successful exploit could allow the attacker to maintain the audio connection of a Webex session despite being expelled.\r\n\r\nThis advisory is available at the following link:\r\nhttps://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-webex-info-leak-PhpzB3sG [\"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-webex-info-leak-PhpzB3sG\"]",
        "title": "Summary"
      },
      {
        "category": "general",
        "text": "This vulnerability affected all Cisco Webex Meetings sites prior to the Cisco fix. Webex Meetings is cloud based.\r\n\r\nAt the time of publication, this vulnerability also affected the following releases of Cisco Webex Meetings Server, which is on premises. See the Details section in the bug ID(s) at the top of this advisory for the most complete and current information.\r\n\r\n3.0MR3 Security Patch 4 and earlier\r\n4.0MR3 Security Patch 3 and earlier",
        "title": "Vulnerable Products"
      },
      {
        "category": "general",
        "text": "Only products listed in the Vulnerable Products [\"#vp\"] section of this advisory are known to be affected by this vulnerability.",
        "title": "Products Confirmed Not Vulnerable"
      },
      {
        "category": "general",
        "text": "A successful exploit could allow the attacker to maintain bidirectional audio despite disconnecting from the session or being expelled by the session host.",
        "title": "Details"
      },
      {
        "category": "general",
        "text": "There are no workarounds that address this vulnerability.",
        "title": "Workarounds"
      },
      {
        "category": "general",
        "text": "When considering software upgrades [\"https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html#fixes\"], customers are advised to regularly consult the advisories for Cisco products, which are available from the Cisco Security Advisories page [\"https://www.cisco.com/go/psirt\"], to determine exposure and a complete upgrade solution.\r\n\r\nIn all cases, customers should ensure that the devices to be upgraded contain sufficient memory and confirm that current hardware and software configurations will continue to be supported properly by the new release. If the information is not clear, customers are advised to contact the Cisco Technical Assistance Center (TAC) or their contracted maintenance providers.\r\n      Fixed Releases\r\nCisco has addressed this vulnerability in Cisco Webex Meetings sites, which are cloud based. No user action is required.\r\n\r\nAt the time of publication, the following releases for Cisco Webex Meetings Server, which is on-premises software, contain the fix for this vulnerability. Customers are advised to apply updated software releases. See the Details section in the bug ID(s) at the top of this advisory for the most complete and current information.\r\n\r\n3.0MR3 Security Patch 5\r\n4.0MR3 Security Patch 4\r\n\r\nCustomers who need additional information are advised to contact the Cisco TAC or their contracted maintenance providers.",
        "title": "Fixed Software"
      },
      {
        "category": "general",
        "text": "To learn about Cisco security vulnerability disclosure policies and publications, see the Security Vulnerability Policy [\"https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html\"]. This document also contains instructions for obtaining fixed software and receiving security vulnerability information from Cisco.",
        "title": "Vulnerability Policy"
      },
      {
        "category": "general",
        "text": "The Cisco Product Security Incident Response Team (PSIRT) is aware of public announcements about this vulnerability. Cisco PSIRT is not aware of malicious use of the vulnerability that is described in this advisory.",
        "title": "Exploitation and Public Announcements"
      },
      {
        "category": "general",
        "text": "Cisco would like to thank the following researchers from IBM Research for reporting this vulnerability:\r\n\r\nJiyong Jang, Research Scientist and Manager\r\nDhilung Kirat, Research Scientist\r\nIan Molloy, Principal RSM and Department Head\r\nJ.R. Rao, IBM Fellow and CTO",
        "title": "Source"
      },
      {
        "category": "legal_disclaimer",
        "text": "THIS DOCUMENT IS PROVIDED ON AN \"AS IS\" BASIS AND DOES NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. YOUR USE OF THE INFORMATION ON THE DOCUMENT OR MATERIALS LINKED FROM THE DOCUMENT IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE THIS DOCUMENT AT ANY TIME.\r\n\r\nA standalone copy or paraphrase of the text of this document that omits the distribution URL is an uncontrolled copy and may lack important information or contain factual errors. The information in this document is intended for end users of Cisco products.",
        "title": "Legal Disclaimer"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "Emergency Support:\r\n+1 877 228 7302 (toll-free within North America)\r\n+1 408 525 6532 (International direct-dial)\r\nNon-emergency Support:\r\nEmail: psirt@cisco.com\r\nSupport requests that are received via e-mail are typically acknowledged within 48 hours.",
      "issuing_authority": "Cisco product security incident response is the responsibility of the Cisco Product Security Incident Response Team (PSIRT). The Cisco PSIRT is a dedicated, global team that manages the receipt, investigation, and public reporting of security vulnerability information that is related to Cisco products and networks. The on-call Cisco PSIRT works 24x7 with Cisco customers, independent security researchers, consultants, industry organizations, and other vendors to identify possible security issues with Cisco products and networks.\r\nMore information can be found in Cisco Security Vulnerability Policy available at https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html",
      "name": "Cisco",
      "namespace": "https://wwww.cisco.com"
    },
    "references": [
      {
        "category": "self",
        "summary": "Cisco Webex Meetings and Cisco Webex Meetings Server Unauthorized Audio Information Exposure Vulnerability",
        "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-webex-info-leak-PhpzB3sG"
      },
      {
        "category": "external",
        "summary": "Cisco Security Vulnerability Policy",
        "url": "https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html"
      },
      {
        "category": "external",
        "summary": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-webex-info-leak-PhpzB3sG",
        "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-webex-info-leak-PhpzB3sG"
      },
      {
        "category": "external",
        "summary": "considering software upgrades",
        "url": "https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html#fixes"
      },
      {
        "category": "external",
        "summary": "Cisco\u0026nbsp;Security Advisories page",
        "url": "https://www.cisco.com/go/psirt"
      },
      {
        "category": "external",
        "summary": "Security Vulnerability Policy",
        "url": "https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html"
      }
    ],
    "title": "Cisco Webex Meetings and Cisco Webex Meetings Server Unauthorized Audio Information Exposure Vulnerability",
    "tracking": {
      "current_release_date": "2020-11-23T21:59:36+00:00",
      "generator": {
        "date": "2022-10-22T03:06:52+00:00",
        "engine": {
          "name": "TVCE"
        }
      },
      "id": "cisco-sa-webex-info-leak-PhpzB3sG",
      "initial_release_date": "2020-11-18T16:00:00+00:00",
      "revision_history": [
        {
          "date": "2020-11-17T22:54:06+00:00",
          "number": "1.0.0",
          "summary": "Initial public release."
        },
        {
          "date": "2020-11-19T16:13:51+00:00",
          "number": "1.1.0",
          "summary": "Corrected a researcher\u0027s name."
        },
        {
          "date": "2020-11-23T21:59:36+00:00",
          "number": "1.2.0",
          "summary": "Updated formatting in Vulnerable Products and Fixed Software."
        }
      ],
      "status": "final",
      "version": "1.2.0"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "category": "product_family",
            "name": "Cisco WebEx Meetings Server",
            "product": {
              "name": "Cisco WebEx Meetings Server ",
              "product_id": "CSAFPID-190702"
            }
          },
          {
            "category": "product_family",
            "name": "Cisco Webex Meetings",
            "product": {
              "name": "Cisco Webex Meetings ",
              "product_id": "CSAFPID-228295"
            }
          }
        ],
        "category": "vendor",
        "name": "Cisco"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2020-3471",
      "ids": [
        {
          "system_name": "Cisco Bug ID",
          "text": "CSCvu84564"
        },
        {
          "system_name": "Cisco Bug ID",
          "text": "CSCvu98531"
        }
      ],
      "notes": [
        {
          "category": "other",
          "text": "Complete.",
          "title": "Affected Product Comprehensiveness"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-228295",
          "CSAFPID-190702"
        ]
      },
      "release_date": "2020-11-18T16:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "Cisco has released software updates that address this vulnerability.",
          "product_ids": [
            "CSAFPID-228295",
            "CSAFPID-190702"
          ],
          "url": "https://software.cisco.com"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-228295",
            "CSAFPID-190702"
          ]
        }
      ],
      "title": "Cisco Webex Meetings and Cisco Webex Meetings Server Audio Information Exposure Vulnerability"
    }
  ]
}