{"containers": {"cna": {"affected": [{"product": "Cisco Meeting Server", "vendor": "Cisco", "versions": [{"status": "affected", "version": "n/a"}]}], "datePublic": "2021-10-20T00:00:00", "descriptions": [{"lang": "en", "value": "A vulnerability in an API of the Call Bridge feature of Cisco Meeting Server could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. This vulnerability is due to improper handling of large series of message requests. An attacker could exploit this vulnerability by sending a series of messages to the vulnerable API. A successful exploit could allow the attacker to cause the affected device to reload, dropping all ongoing calls and resulting in a DoS condition."}], "exploits": [{"lang": "en", "value": "The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory."}], "metrics": [{"cvssV3_1": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 5.9, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}}], "problemTypes": [{"descriptions": [{"cweId": "CWE-399", "description": "CWE-399", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2021-10-21T02:50:39", "orgId": "d1c1063e-7a18-46af-9102-31f8928bc633", "shortName": "cisco"}, "references": [{"name": "20211020 Cisco Meeting Server Call Bridge Denial of Service Vulnerability", "tags": ["vendor-advisory", "x_refsource_CISCO"], "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cms-LAHe8z5v"}], "source": {"advisory": "cisco-sa-cms-LAHe8z5v", "defect": [["CSCvz44400"]], "discovery": "INTERNAL"}, "title": "Cisco Meeting Server Call Bridge Denial of Service Vulnerability", "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "psirt@cisco.com", "DATE_PUBLIC": "2021-10-20T16:00:00", "ID": "CVE-2021-40122", "STATE": "PUBLIC", "TITLE": "Cisco Meeting Server Call Bridge Denial of Service Vulnerability"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "Cisco Meeting Server", "version": {"version_data": [{"version_value": "n/a"}]}}]}, "vendor_name": "Cisco"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "A vulnerability in an API of the Call Bridge feature of Cisco Meeting Server could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. This vulnerability is due to improper handling of large series of message requests. An attacker could exploit this vulnerability by sending a series of messages to the vulnerable API. A successful exploit could allow the attacker to cause the affected device to reload, dropping all ongoing calls and resulting in a DoS condition."}]}, "exploit": [{"lang": "en", "value": "The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory."}], "impact": {"cvss": {"baseScore": "5.9", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.0"}}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-399"}]}]}, "references": {"reference_data": [{"name": "20211020 Cisco Meeting Server Call Bridge Denial of Service Vulnerability", "refsource": "CISCO", "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cms-LAHe8z5v"}]}, "source": {"advisory": "cisco-sa-cms-LAHe8z5v", "defect": [["CSCvz44400"]], "discovery": "INTERNAL"}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T02:27:31.642Z"}, "title": "CVE Program Container", "references": [{"name": "20211020 Cisco Meeting Server Call Bridge Denial of Service Vulnerability", "tags": ["vendor-advisory", "x_refsource_CISCO", "x_transferred"], "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cms-LAHe8z5v"}]}, {"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2024-11-07T21:39:54.390567Z", "id": "CVE-2021-40122", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-11-07T21:46:47.553Z"}}]}, "cveMetadata": {"assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633", "assignerShortName": "cisco", "cveId": "CVE-2021-40122", "datePublished": "2021-10-21T02:50:39.261093Z", "dateReserved": "2021-08-25T00:00:00", "dateUpdated": "2024-11-07T21:46:47.553Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cms-LAHe8z5v", "name": "20211020 Cisco Meeting Server Call Bridge Denial of Service Vulnerability", "tags": ["vendor-advisory", "x_refsource_CISCO", "x_transferred"]}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T02:27:31.642Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2021-40122", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-11-07T21:39:54.390567Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-11-07T21:40:41.210Z"}}], "cna": {"title": "Cisco Meeting Server Call Bridge Denial of Service Vulnerability", "source": {"defect": [["CSCvz44400"]], "advisory": "cisco-sa-cms-LAHe8z5v", "discovery": "INTERNAL"}, "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.9, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}}], "affected": [{"vendor": "Cisco", "product": "Cisco Meeting Server", "versions": [{"status": "affected", "version": "n/a"}]}], "exploits": [{"lang": "en", "value": "The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory."}], "datePublic": "2021-10-20T00:00:00", "references": [{"url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cms-LAHe8z5v", "name": "20211020 Cisco Meeting Server Call Bridge Denial of Service Vulnerability", "tags": ["vendor-advisory", "x_refsource_CISCO"]}], "descriptions": [{"lang": "en", "value": "A vulnerability in an API of the Call Bridge feature of Cisco Meeting Server could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. This vulnerability is due to improper handling of large series of message requests. An attacker could exploit this vulnerability by sending a series of messages to the vulnerable API. A successful exploit could allow the attacker to cause the affected device to reload, dropping all ongoing calls and resulting in a DoS condition."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-399", "description": "CWE-399"}]}], "providerMetadata": {"orgId": "d1c1063e-7a18-46af-9102-31f8928bc633", "shortName": "cisco", "dateUpdated": "2021-10-21T02:50:39"}, "x_legacyV4Record": {"impact": {"cvss": {"version": "3.0", "baseScore": "5.9", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H"}}, "source": {"defect": [["CSCvz44400"]], "advisory": "cisco-sa-cms-LAHe8z5v", "discovery": "INTERNAL"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"version": {"version_data": [{"version_value": "n/a"}]}, "product_name": "Cisco Meeting Server"}]}, "vendor_name": "Cisco"}]}}, "exploit": [{"lang": "en", "value": "The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory."}], "data_type": "CVE", "references": {"reference_data": [{"url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cms-LAHe8z5v", "name": "20211020 Cisco Meeting Server Call Bridge Denial of Service Vulnerability", "refsource": "CISCO"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "eng", "value": "A vulnerability in an API of the Call Bridge feature of Cisco Meeting Server could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. This vulnerability is due to improper handling of large series of message requests. An attacker could exploit this vulnerability by sending a series of messages to the vulnerable API. A successful exploit could allow the attacker to cause the affected device to reload, dropping all ongoing calls and resulting in a DoS condition."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-399"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2021-40122", "STATE": "PUBLIC", "TITLE": "Cisco Meeting Server Call Bridge Denial of Service Vulnerability", "ASSIGNER": "psirt@cisco.com", "DATE_PUBLIC": "2021-10-20T16:00:00"}}}}, "cveMetadata": {"cveId": "CVE-2021-40122", "state": "PUBLISHED", "dateUpdated": "2024-11-07T21:46:47.553Z", "dateReserved": "2021-08-25T00:00:00", "assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633", "datePublished": "2021-10-21T02:50:39.261093Z", "assignerShortName": "cisco"}, "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:cisco:meeting_server:*:*:*:*:*:*:*:*", "matchCriteriaId": "86F0836A-9C44-4315-804F-508C7BBB3814", "versionEndIncluding": "3.1", "vulnerable": true}, {"criteria": "cpe:2.3:a:cisco:meeting_server:*:*:*:*:*:*:*:*", "matchCriteriaId": "8422544D-16AC-4B57-B677-9A2F2F7B2AB8", "versionEndExcluding": "3.2.3", "versionStartIncluding": "3.2", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A vulnerability in an API of the Call Bridge feature of Cisco Meeting Server could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. This vulnerability is due to improper handling of large series of message requests. An attacker could exploit this vulnerability by sending a series of messages to the vulnerable API. A successful exploit could allow the attacker to cause the affected device to reload, dropping all ongoing calls and resulting in a DoS condition."}, {"lang": "es", "value": "Una vulnerabilidad en una API de la funci\u00f3n Call Bridge de Cisco Meeting Server podr\u00eda permitir a un atacante remoto no autenticado causar una condici\u00f3n de denegaci\u00f3n de servicio (DoS). Esta vulnerabilidad es debido al manejo inapropiado de grandes series de peticiones de mensajes. Un atacante podr\u00eda aprovechar esta vulnerabilidad mediante el env\u00edo de una serie de mensajes a la API vulnerable. Una explotaci\u00f3n con \u00e9xito podr\u00eda permitir al atacante causar la recarga del dispositivo afectado, dejando caer todas las llamadas en curso y resultando en una condici\u00f3n de DoS"}], "id": "CVE-2021-40122", "lastModified": "2023-11-07T03:38:30.170", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 5.0, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}, {"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 5.9, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 2.2, "impactScore": 3.6, "source": "ykramarz@cisco.com", "type": "Secondary"}]}, "published": "2021-10-21T03:15:07.270", "references": [{"source": "ykramarz@cisco.com", "tags": ["Vendor Advisory"], "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cms-LAHe8z5v"}], "sourceIdentifier": "ykramarz@cisco.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-404"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-399"}], "source": "ykramarz@cisco.com", "type": "Secondary"}]}

{}