CVE-2023-20047

{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2023-20047", "assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633", "state": "PUBLISHED", "assignerShortName": "cisco", "dateReserved": "2022-10-27T18:47:50.317Z", "datePublished": "2023-01-19T01:36:07.348Z", "dateUpdated": "2024-08-02T08:57:35.638Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "d1c1063e-7a18-46af-9102-31f8928bc633", "shortName": "cisco", "dateUpdated": "2024-01-25T16:57:38.362Z"}, "descriptions": [{"lang": "en", "value": "A vulnerability in the Link Layer Discovery Protocol (LLDP) feature of Cisco Webex Room Phone and Cisco Webex Share devices could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device.\r\n\r This vulnerability is due to insufficient resource allocation. An attacker could exploit this vulnerability by sending crafted LLDP traffic to an affected device. A successful exploit could allow the attacker to exhaust the memory resources of the affected device, resulting in a crash of the LLDP process. If the affected device is configured to support LLDP only, this could cause an interruption to inbound and outbound calling. By default, these devices are configured to support both Cisco Discovery Protocol and LLDP. To recover operational state, the affected device needs a manual restart."}], "affected": [{"vendor": "Cisco", "product": "Cisco Webex Room Phone", "versions": [{"version": "RoomPhone 1.1.0", "status": "affected"}, {"version": "RoomPhone 1.2.0", "status": "affected"}, {"version": "RoomPhone 1.2.0SR1", "status": "affected"}, {"version": "RoomPhone 1.2.0SR2", "status": "affected"}]}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "Uncontrolled Resource Consumption", "type": "cwe", "cweId": "CWE-400"}]}], "references": [{"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-lldp-memlk-McOecPT", "name": "cisco-sa-lldp-memlk-McOecPT"}], "metrics": [{"format": "cvssV3_1", "cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "baseScore": 6.5, "baseSeverity": "MEDIUM", "attackVector": "ADJACENT_NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH"}}], "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."}], "source": {"advisory": "cisco-sa-lldp-memlk-McOecPT", "discovery": "EXTERNAL", "defects": ["CSCwb22136", "CSCwb25580"]}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T08:57:35.638Z"}, "title": "CVE Program Container", "references": [{"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-lldp-memlk-McOecPT", "name": "cisco-sa-lldp-memlk-McOecPT", "tags": ["x_transferred"]}]}]}}

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{"affected": [{"affectedData": [{"product": "Cisco Webex Room Phone", "vendor": "Cisco", "versions": [{"status": "affected", "version": "RoomPhone 1.1.0"}, {"status": "affected", "version": "RoomPhone 1.2.0"}, {"status": "affected", "version": "RoomPhone 1.2.0SR1"}, {"status": "affected", "version": "RoomPhone 1.2.0SR2"}]}], "source": "psirt@cisco.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:cisco:webex_room_phone_firmware:*:*:*:*:*:*:*:*", "matchCriteriaId": "4F444881-CA93-422D-BF5F-BD44C2E3250B", "versionEndIncluding": "1.2.0", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:cisco:webex_room_phone:-:*:*:*:*:*:*:*", "matchCriteriaId": "060033D2-5332-4C89-813A-3780E1619DFD", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:cisco:webex_share_firmware:*:*:*:*:*:*:*:*", "matchCriteriaId": "565DAB6E-1F2D-44D6-93EC-8207F6A4CCE6", "versionEndIncluding": "1.2.0", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:cisco:webex_share:-:*:*:*:*:*:*:*", "matchCriteriaId": "B8F0BAD8-AF78-4817-ADD0-9BDC0027D1A3", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:cisco:sip_ip_phone_software:*:*:*:*:*:*:*:*", "matchCriteriaId": "E37E42DB-266B-44AA-8210-638D63B9DD7E", "versionEndIncluding": "1.2.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A vulnerability in the Link Layer Discovery Protocol (LLDP) feature of Cisco Webex Room Phone and Cisco Webex Share devices could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device.\r\n\r This vulnerability is due to insufficient resource allocation. An attacker could exploit this vulnerability by sending crafted LLDP traffic to an affected device. A successful exploit could allow the attacker to exhaust the memory resources of the affected device, resulting in a crash of the LLDP process. If the affected device is configured to support LLDP only, this could cause an interruption to inbound and outbound calling. By default, these devices are configured to support both Cisco Discovery Protocol and LLDP. To recover operational state, the affected device needs a manual restart."}, {"lang": "es", "value": "Una vulnerabilidad en la funci\u00f3n Link Layer Discovery Protocol (LLDP) de los dispositivos Cisco Webex Room Phone y Cisco Webex Share podr\u00eda permitir que un atacante adyacente no autenticado provoque una condici\u00f3n de denegaci\u00f3n de servicio (DoS) en un dispositivo afectado. Esta vulnerabilidad se debe a una asignaci\u00f3n insuficiente de recursos. Un atacante podr\u00eda aprovechar esta vulnerabilidad enviando tr\u00e1fico LLDP manipulado a un dispositivo afectado. Un exploit exitoso podr\u00eda permitir al atacante agotar los recursos de memoria del dispositivo afectado, lo que provocar\u00eda una falla del proceso LLDP. Si el dispositivo afectado est\u00e1 configurado para admitir \u00fanicamente LLDP, esto podr\u00eda causar una interrupci\u00f3n en las llamadas entrantes y salientes. De forma predeterminada, estos dispositivos est\u00e1n configurados para admitir tanto Cisco Discovery Protocol como LLDP. Para recuperar el estado operativo, el dispositivo afectado necesita un reinicio manual."}], "id": "CVE-2023-20047", "lastModified": "2026-06-17T05:29:21.497", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "ADJACENT_NETWORK", "availabilityImpact": "HIGH", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 3.6, "source": "psirt@cisco.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "ADJACENT_NETWORK", "availabilityImpact": "HIGH", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2023-01-20T07:15:17.063", "references": [{"source": "psirt@cisco.com", "tags": ["Vendor Advisory"], "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-lldp-memlk-McOecPT"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-lldp-memlk-McOecPT"}], "sourceIdentifier": "psirt@cisco.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-400"}], "source": "psirt@cisco.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-770"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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