CVE-2021-1394

{"containers": {"cna": {"affected": [{"product": "Cisco IOS XE Software", "vendor": "Cisco", "versions": [{"status": "affected", "version": "n/a"}]}], "datePublic": "2021-03-24T00:00:00.000Z", "descriptions": [{"lang": "en", "value": "A vulnerability in the ingress traffic manager of Cisco IOS XE Software for Cisco Network Convergence System (NCS) 520 Routers could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition in the web management interface of an affected device. This vulnerability is due to incorrect processing of certain IPv4 TCP traffic that is destined to an affected device. An attacker could exploit this vulnerability by sending a large number of crafted TCP packets to the affected device. A successful exploit could allow the attacker to cause the web management interface to become unavailable, resulting in a DoS condition. Note: This vulnerability does not impact traffic that is going through the device or going to the Management Ethernet interface of the device."}], "exploits": [{"lang": "en", "value": "The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory."}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 5.3, "baseSeverity": "MEDIUM", "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:L", "version": "3.1"}}], "problemTypes": [{"descriptions": [{"cweId": "CWE-399", "description": "CWE-399", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2021-03-24T20:07:14.000Z", "orgId": "d1c1063e-7a18-46af-9102-31f8928bc633", "shortName": "cisco"}, "references": [{"name": "20210324 Cisco IOS XE Software for Network Convergence System 520 Routers Denial of Service Vulnerability", "tags": ["vendor-advisory", "x_refsource_CISCO"], "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ncs520-tcp-ZpzzOxB"}], "source": {"advisory": "cisco-sa-ncs520-tcp-ZpzzOxB", "defect": [["CSCvm96192"]], "discovery": "INTERNAL"}, "title": "Cisco IOS XE Software for Network Convergence System 520 Routers Denial of Service Vulnerability", "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "psirt@cisco.com", "DATE_PUBLIC": "2021-03-24T16:00:00", "ID": "CVE-2021-1394", "STATE": "PUBLIC", "TITLE": "Cisco IOS XE Software for Network Convergence System 520 Routers Denial of Service Vulnerability"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "Cisco IOS XE Software", "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 the ingress traffic manager of Cisco IOS XE Software for Cisco Network Convergence System (NCS) 520 Routers could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition in the web management interface of an affected device. This vulnerability is due to incorrect processing of certain IPv4 TCP traffic that is destined to an affected device. An attacker could exploit this vulnerability by sending a large number of crafted TCP packets to the affected device. A successful exploit could allow the attacker to cause the web management interface to become unavailable, resulting in a DoS condition. Note: This vulnerability does not impact traffic that is going through the device or going to the Management Ethernet interface of the device."}]}, "exploit": [{"lang": "en", "value": "The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory."}], "impact": {"cvss": {"baseScore": "5.3", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L", "version": "3.0"}}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-399"}]}]}, "references": {"reference_data": [{"name": "20210324 Cisco IOS XE Software for Network Convergence System 520 Routers Denial of Service Vulnerability", "refsource": "CISCO", "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ncs520-tcp-ZpzzOxB"}]}, "source": {"advisory": "cisco-sa-ncs520-tcp-ZpzzOxB", "defect": [["CSCvm96192"]], "discovery": "INTERNAL"}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T16:11:16.898Z"}, "title": "CVE Program Container", "references": [{"name": "20210324 Cisco IOS XE Software for Network Convergence System 520 Routers Denial of Service Vulnerability", "tags": ["vendor-advisory", "x_refsource_CISCO", "x_transferred"], "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ncs520-tcp-ZpzzOxB"}]}, {"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2024-11-08T20:03:07.788626Z", "id": "CVE-2021-1394", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"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": "2024-11-08T23:33:15.300Z"}}]}, "cveMetadata": {"assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633", "assignerShortName": "cisco", "cveId": "CVE-2021-1394", "datePublished": "2021-03-24T20:07:14.521Z", "dateReserved": "2020-11-13T00:00:00.000Z", "dateUpdated": "2024-11-08T23:33:15.300Z", "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-ncs520-tcp-ZpzzOxB", "name": "20210324 Cisco IOS XE Software for Network Convergence System 520 Routers Denial of Service Vulnerability", "tags": ["vendor-advisory", "x_refsource_CISCO", "x_transferred"]}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T16:11:16.898Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2021-1394", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-11-08T20:03:07.788626Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-11-08T20:10:17.847Z"}}], "cna": {"title": "Cisco IOS XE Software for Network Convergence System 520 Routers Denial of Service Vulnerability", "source": {"defect": [["CSCvm96192"]], "advisory": "cisco-sa-ncs520-tcp-ZpzzOxB", "discovery": "INTERNAL"}, "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.3, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "LOW", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}}], "affected": [{"vendor": "Cisco", "product": "Cisco IOS XE Software", "versions": [{"status": "affected", "version": "n/a"}]}], "exploits": [{"lang": "en", "value": "The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory."}], "datePublic": "2021-03-24T00:00:00.000Z", "references": [{"url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ncs520-tcp-ZpzzOxB", "name": "20210324 Cisco IOS XE Software for Network Convergence System 520 Routers Denial of Service Vulnerability", "tags": ["vendor-advisory", "x_refsource_CISCO"]}], "descriptions": [{"lang": "en", "value": "A vulnerability in the ingress traffic manager of Cisco IOS XE Software for Cisco Network Convergence System (NCS) 520 Routers could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition in the web management interface of an affected device. This vulnerability is due to incorrect processing of certain IPv4 TCP traffic that is destined to an affected device. An attacker could exploit this vulnerability by sending a large number of crafted TCP packets to the affected device. A successful exploit could allow the attacker to cause the web management interface to become unavailable, resulting in a DoS condition. Note: This vulnerability does not impact traffic that is going through the device or going to the Management Ethernet interface of the device."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-399", "description": "CWE-399"}]}], "providerMetadata": {"orgId": "d1c1063e-7a18-46af-9102-31f8928bc633", "shortName": "cisco", "dateUpdated": "2021-03-24T20:07:14.000Z"}, "x_legacyV4Record": {"impact": {"cvss": {"version": "3.0", "baseScore": "5.3", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"}}, "source": {"defect": [["CSCvm96192"]], "advisory": "cisco-sa-ncs520-tcp-ZpzzOxB", "discovery": "INTERNAL"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"version": {"version_data": [{"version_value": "n/a"}]}, "product_name": "Cisco IOS XE Software"}]}, "vendor_name": "Cisco"}]}}, "exploit": [{"lang": "en", "value": "The Cisco Product Security Incident Response Team (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-ncs520-tcp-ZpzzOxB", "name": "20210324 Cisco IOS XE Software for Network Convergence System 520 Routers Denial of Service Vulnerability", "refsource": "CISCO"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "eng", "value": "A vulnerability in the ingress traffic manager of Cisco IOS XE Software for Cisco Network Convergence System (NCS) 520 Routers could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition in the web management interface of an affected device. This vulnerability is due to incorrect processing of certain IPv4 TCP traffic that is destined to an affected device. An attacker could exploit this vulnerability by sending a large number of crafted TCP packets to the affected device. A successful exploit could allow the attacker to cause the web management interface to become unavailable, resulting in a DoS condition. Note: This vulnerability does not impact traffic that is going through the device or going to the Management Ethernet interface of the device."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-399"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2021-1394", "STATE": "PUBLIC", "TITLE": "Cisco IOS XE Software for Network Convergence System 520 Routers Denial of Service Vulnerability", "ASSIGNER": "psirt@cisco.com", "DATE_PUBLIC": "2021-03-24T16:00:00"}}}}, "cveMetadata": {"cveId": "CVE-2021-1394", "state": "PUBLISHED", "dateUpdated": "2024-11-08T23:33:15.300Z", "dateReserved": "2020-11-13T00:00:00.000Z", "assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633", "datePublished": "2021-03-24T20:07:14.521Z", "assignerShortName": "cisco"}, "dataVersion": "5.1"}

{"affected": [{"affectedData": [{"product": "Cisco IOS XE Software", "vendor": "Cisco", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "psirt@cisco.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:cisco:ios_xe:16.10.1:*:*:*:*:*:*:*", "matchCriteriaId": "DB6BD18B-B9BD-452F-986E-16A6668E46B6", "vulnerable": true}, {"criteria": "cpe:2.3:o:cisco:ios_xe:16.10.1a:*:*:*:*:*:*:*", "matchCriteriaId": "D136D2BC-FFB5-4912-A3B1-BD96148CB9A5", "vulnerable": true}, {"criteria": "cpe:2.3:o:cisco:ios_xe:16.10.1b:*:*:*:*:*:*:*", "matchCriteriaId": "A22256FE-431C-4AD9-9E7F-7EAC2D81B1B7", "vulnerable": true}, {"criteria": "cpe:2.3:o:cisco:ios_xe:16.10.1c:*:*:*:*:*:*:*", "matchCriteriaId": "5CD5B3AB-27C2-4055-A3B7-0112D089FDA4", "vulnerable": true}, {"criteria": "cpe:2.3:o:cisco:ios_xe:16.10.1d:*:*:*:*:*:*:*", "matchCriteriaId": "04081A51-E08F-4114-9276-584E836181D3", "vulnerable": true}, {"criteria": "cpe:2.3:o:cisco:ios_xe:16.10.1e:*:*:*:*:*:*:*", "matchCriteriaId": "ADED0D82-2A4D-4235-BFAC-5EE2D862B652", "vulnerable": true}, {"criteria": "cpe:2.3:o:cisco:ios_xe:16.10.1f:*:*:*:*:*:*:*", "matchCriteriaId": "62A46516-CEB7-48D4-879B-341963A1FA31", "vulnerable": true}, {"criteria": "cpe:2.3:o:cisco:ios_xe:16.10.1g:*:*:*:*:*:*:*", "matchCriteriaId": "D6EF98FA-6DF9-4935-9639-143E08462BC4", "vulnerable": true}, {"criteria": "cpe:2.3:o:cisco:ios_xe:16.10.1s:*:*:*:*:*:*:*", "matchCriteriaId": "763664F5-E6CD-4936-B2F8-C5E2D5EA7BB6", "vulnerable": true}, {"criteria": "cpe:2.3:o:cisco:ios_xe:17.2.1v:*:*:*:*:*:*:*", "matchCriteriaId": "211CC9B2-6108-4C50-AB31-DC527C43053E", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A vulnerability in the ingress traffic manager of Cisco IOS XE Software for Cisco Network Convergence System (NCS) 520 Routers could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition in the web management interface of an affected device. This vulnerability is due to incorrect processing of certain IPv4 TCP traffic that is destined to an affected device. An attacker could exploit this vulnerability by sending a large number of crafted TCP packets to the affected device. A successful exploit could allow the attacker to cause the web management interface to become unavailable, resulting in a DoS condition. Note: This vulnerability does not impact traffic that is going through the device or going to the Management Ethernet interface of the device."}, {"lang": "es", "value": "Una vulnerabilidad en el administrador de tr\u00e1fico de la entrada del Software Cisco IOS XE para enrutadores Cisco Network Convergence System (NCS) 520, podr\u00eda permitir a un atacante remoto no autenticado causar una condici\u00f3n de denegaci\u00f3n de servicio (DoS) en la interfaz de administraci\u00f3n web de un dispositivo afectado. Esta vulnerabilidad es debido al procesamiento incorrecto de cierto tr\u00e1fico IPv4 TCP destinado a un dispositivo afectado. Un atacante podr\u00eda explotar esta vulnerabilidad mediante el env\u00edo de una gran cantidad de paquetes TCP dise\u00f1ados al dispositivo afectado. Una explotaci\u00f3n con \u00e9xito podr\u00eda permitir que el atacante cause que la interfaz de administraci\u00f3n web deje de estar disponible, resultando en una condici\u00f3n de DoS. Nota: esta vulnerabilidad no afecta el tr\u00e1fico que atraviesa el dispositivo o que se dirige a la interfaz Ethernet de administraci\u00f3n del dispositivo"}], "id": "CVE-2021-1394", "lastModified": "2026-06-17T03:31:40.393", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 4.3, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 8.6, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 5.3, "baseSeverity": "MEDIUM", "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:L", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 1.4, "source": "psirt@cisco.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 5.3, "baseSeverity": "MEDIUM", "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:L", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 1.4, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2021-1394", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2024-11-08T20:03:07.788626Z", "version": "2.0.3"}}]}, "published": "2021-03-24T20:15:14.133", "references": [{"source": "psirt@cisco.com", "tags": ["Vendor Advisory"], "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ncs520-tcp-ZpzzOxB"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ncs520-tcp-ZpzzOxB"}], "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"}]}

{}

{}