CVE-2017-3876

{"containers": {"cna": {"affected": [{"product": "Cisco IOS XR", "vendor": "n/a", "versions": [{"status": "affected", "version": "Cisco IOS XR"}]}], "datePublic": "2017-05-16T00:00:00.000Z", "descriptions": [{"lang": "en", "value": "A vulnerability in the Event Management Service daemon (emsd) of Cisco IOS XR routers could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on the affected device. The vulnerability is due to improper handling of gRPC requests. An attacker could exploit this vulnerability by repeatedly sending unauthenticated gRPC requests to the affected device. A successful exploit could allow the attacker to crash the device in such a manner that manual intervention is required to recover. This vulnerability affects all Cisco IOS XR platforms that are running release 6.1.1 of Cisco IOS XR Software when the gRPC service is enabled on the device. The gRPC service is not enabled by default. Cisco Bug IDs: CSCvb14441."}], "problemTypes": [{"descriptions": [{"cweId": "CWE-399", "description": "CWE-399", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2017-07-10T09:57:01.000Z", "orgId": "d1c1063e-7a18-46af-9102-31f8928bc633", "shortName": "cisco"}, "references": [{"name": "98284", "tags": ["vdb-entry", "x_refsource_BID"], "url": "http://www.securityfocus.com/bid/98284"}, {"tags": ["x_refsource_CONFIRM"], "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170503-ios-xr"}, {"name": "1038393", "tags": ["vdb-entry", "x_refsource_SECTRACK"], "url": "http://www.securitytracker.com/id/1038393"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "psirt@cisco.com", "ID": "CVE-2017-3876", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "Cisco IOS XR", "version": {"version_data": [{"version_value": "Cisco IOS XR"}]}}]}, "vendor_name": "n/a"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "A vulnerability in the Event Management Service daemon (emsd) of Cisco IOS XR routers could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on the affected device. The vulnerability is due to improper handling of gRPC requests. An attacker could exploit this vulnerability by repeatedly sending unauthenticated gRPC requests to the affected device. A successful exploit could allow the attacker to crash the device in such a manner that manual intervention is required to recover. This vulnerability affects all Cisco IOS XR platforms that are running release 6.1.1 of Cisco IOS XR Software when the gRPC service is enabled on the device. The gRPC service is not enabled by default. Cisco Bug IDs: CSCvb14441."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-399"}]}]}, "references": {"reference_data": [{"name": "98284", "refsource": "BID", "url": "http://www.securityfocus.com/bid/98284"}, {"name": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170503-ios-xr", "refsource": "CONFIRM", "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170503-ios-xr"}, {"name": "1038393", "refsource": "SECTRACK", "url": "http://www.securitytracker.com/id/1038393"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-05T14:39:41.338Z"}, "title": "CVE Program Container", "references": [{"name": "98284", "tags": ["vdb-entry", "x_refsource_BID", "x_transferred"], "url": "http://www.securityfocus.com/bid/98284"}, {"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170503-ios-xr"}, {"name": "1038393", "tags": ["vdb-entry", "x_refsource_SECTRACK", "x_transferred"], "url": "http://www.securitytracker.com/id/1038393"}]}]}, "cveMetadata": {"assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633", "assignerShortName": "cisco", "cveId": "CVE-2017-3876", "datePublished": "2017-05-16T17:00:00.000Z", "dateReserved": "2016-12-21T00:00:00.000Z", "dateUpdated": "2024-08-05T14:39:41.338Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

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{"affected": [{"affectedData": [{"product": "Cisco IOS XR", "vendor": "n/a", "versions": [{"status": "affected", "version": "Cisco IOS XR"}]}], "source": "psirt@cisco.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:cisco:ios_xr:6.1.0:*:*:*:*:*:*:*", "matchCriteriaId": "B2C48F47-B3A9-42D5-8C87-111AEA5BD408", "vulnerable": true}, {"criteria": "cpe:2.3:o:cisco:ios_xr:6.1.1:*:*:*:*:*:*:*", "matchCriteriaId": "52CC4093-80C1-4B0C-82D2-647C625FF42D", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A vulnerability in the Event Management Service daemon (emsd) of Cisco IOS XR routers could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on the affected device. The vulnerability is due to improper handling of gRPC requests. An attacker could exploit this vulnerability by repeatedly sending unauthenticated gRPC requests to the affected device. A successful exploit could allow the attacker to crash the device in such a manner that manual intervention is required to recover. This vulnerability affects all Cisco IOS XR platforms that are running release 6.1.1 of Cisco IOS XR Software when the gRPC service is enabled on the device. The gRPC service is not enabled by default. Cisco Bug IDs: CSCvb14441."}, {"lang": "es", "value": "Una vulnerabilidad en el demonio Event Management Service (emsd) de los routers IOS XR de Cisco, podr\u00eda permitir a un atacante remoto no autenticado causar una condici\u00f3n de denegaci\u00f3n de servicio (DoS) en el dispositivo afectado. La vulnerabilidad es debido a un manejo inapropiado de las peticiones gRPC. Un atacante podr\u00eda explotar esta vulnerabilidad mediante el env\u00edo repetitivo de peticiones gRPC no autenticadas hacia el dispositivo afectado. Una explotaci\u00f3n con \u00e9xito podr\u00eda permitir al atacante bloquear el dispositivo de tal manera que se requiera la intervenci\u00f3n manual para recuperarse. Esta vulnerabilidad afecta a todas las Plataformas de IOS XR de Cisco que est\u00e1n ejecutando la versi\u00f3n 6.1.1 del software IOS XR de Cisco cuando el servicio gRPC esta habilitado en el dispositivo. El servicio gRPC no est\u00e1 habilitado por defecto. ID de bug de Cisco: CSCvb14441."}], "id": "CVE-2017-3876", "lastModified": "2026-06-17T01:19:06.277", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "COMPLETE", "baseScore": 7.8, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:C", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 6.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.0"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2017-05-16T17:29:00.247", "references": [{"source": "psirt@cisco.com", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securityfocus.com/bid/98284"}, {"source": "psirt@cisco.com", "url": "http://www.securitytracker.com/id/1038393"}, {"source": "psirt@cisco.com", "tags": ["Vendor Advisory"], "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170503-ios-xr"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securityfocus.com/bid/98284"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.securitytracker.com/id/1038393"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170503-ios-xr"}], "sourceIdentifier": "psirt@cisco.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-399"}], "source": "psirt@cisco.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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