cve-2021-1586
Vulnerability from cvelistv5
Published
2021-08-25 19:10
Modified
2024-11-07 22:02
Severity ?
EPSS score ?
Summary
Cisco Nexus 9000 Series Fabric Switches ACI Mode Multi-Pod and Multi-Site TCP Denial of Service Vulnerability
References
Impacted products
Vendor | Product | Version | |
---|---|---|---|
▼ | Cisco | Cisco NX-OS System Software in ACI Mode |
Version: n/a |
|
{ "containers": { "adp": [ { "providerMetadata": { "dateUpdated": "2024-08-03T16:18:10.396Z", "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE" }, "references": [ { "name": "20210825 Cisco Nexus 9000 Series Fabric Switches ACI Mode Multi-Pod and Multi-Site TCP Denial of Service Vulnerability", "tags": [ "vendor-advisory", "x_refsource_CISCO", "x_transferred" ], "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-n9kaci-tcp-dos-YXukt6gM" } ], "title": "CVE Program Container" }, { "metrics": [ { "other": { "content": { "id": "CVE-2021-1586", "options": [ { "Exploitation": "none" }, { "Automatable": "yes" }, { "Technical Impact": "partial" } ], "role": "CISA Coordinator", "timestamp": "2024-11-07T21:54:28.309256Z", "version": "2.0.3" }, "type": "ssvc" } } ], "providerMetadata": { "dateUpdated": "2024-11-07T22:02:32.217Z", "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP" }, "title": "CISA ADP Vulnrichment" } ], "cna": { "affected": [ { "product": "Cisco NX-OS System Software in ACI Mode", "vendor": "Cisco", "versions": [ { "status": "affected", "version": "n/a" } ] } ], "datePublic": "2021-08-25T00:00:00", "descriptions": [ { "lang": "en", "value": "A vulnerability in the Multi-Pod or Multi-Site network configurations for Cisco Nexus 9000 Series Fabric Switches in Application Centric Infrastructure (ACI) mode could allow an unauthenticated, remote attacker to unexpectedly restart the device, resulting in a denial of service (DoS) condition. This vulnerability exists because TCP traffic sent to a specific port on an affected device is not properly sanitized. An attacker could exploit this vulnerability by sending crafted TCP data to a specific port that is listening on a public-facing IP address for the Multi-Pod or Multi-Site configuration. A successful exploit could allow the attacker to cause the device to restart unexpectedly, resulting in a DoS condition." } ], "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": "HIGH", "baseScore": 8.6, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H", "version": "3.1" } } ], "problemTypes": [ { "descriptions": [ { "cweId": "CWE-345", "description": "CWE-345", "lang": "en", "type": "CWE" } ] } ], "providerMetadata": { "dateUpdated": "2021-08-25T19:10:59", "orgId": "d1c1063e-7a18-46af-9102-31f8928bc633", "shortName": "cisco" }, "references": [ { "name": "20210825 Cisco Nexus 9000 Series Fabric Switches ACI Mode Multi-Pod and Multi-Site TCP Denial of Service Vulnerability", "tags": [ "vendor-advisory", "x_refsource_CISCO" ], "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-n9kaci-tcp-dos-YXukt6gM" } ], "source": { "advisory": "cisco-sa-n9kaci-tcp-dos-YXukt6gM", "defect": [ [ "CSCvw87983" ] ], "discovery": "INTERNAL" }, "title": "Cisco Nexus 9000 Series Fabric Switches ACI Mode Multi-Pod and Multi-Site TCP Denial of Service Vulnerability", "x_legacyV4Record": { "CVE_data_meta": { "ASSIGNER": "psirt@cisco.com", "DATE_PUBLIC": "2021-08-25T16:00:00", "ID": "CVE-2021-1586", "STATE": "PUBLIC", "TITLE": "Cisco Nexus 9000 Series Fabric Switches ACI Mode Multi-Pod and Multi-Site TCP Denial of Service Vulnerability" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "Cisco NX-OS System Software in ACI Mode", "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 Multi-Pod or Multi-Site network configurations for Cisco Nexus 9000 Series Fabric Switches in Application Centric Infrastructure (ACI) mode could allow an unauthenticated, remote attacker to unexpectedly restart the device, resulting in a denial of service (DoS) condition. This vulnerability exists because TCP traffic sent to a specific port on an affected device is not properly sanitized. An attacker could exploit this vulnerability by sending crafted TCP data to a specific port that is listening on a public-facing IP address for the Multi-Pod or Multi-Site configuration. A successful exploit could allow the attacker to cause the device to restart unexpectedly, resulting in a DoS condition." } ] }, "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": "8.6", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H", "version": "3.0" } }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "CWE-345" } ] } ] }, "references": { "reference_data": [ { "name": "20210825 Cisco Nexus 9000 Series Fabric Switches ACI Mode Multi-Pod and Multi-Site TCP Denial of Service Vulnerability", "refsource": "CISCO", "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-n9kaci-tcp-dos-YXukt6gM" } ] }, "source": { "advisory": "cisco-sa-n9kaci-tcp-dos-YXukt6gM", "defect": [ [ "CSCvw87983" ] ], "discovery": "INTERNAL" } } } }, "cveMetadata": { "assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633", "assignerShortName": "cisco", "cveId": "CVE-2021-1586", "datePublished": "2021-08-25T19:10:59.639835Z", "dateReserved": "2020-11-13T00:00:00", "dateUpdated": "2024-11-07T22:02:32.217Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1", "meta": { "nvd": "{\"cve\":{\"id\":\"CVE-2021-1586\",\"sourceIdentifier\":\"ykramarz@cisco.com\",\"published\":\"2021-08-25T20:15:11.237\",\"lastModified\":\"2024-11-21T05:44:40.963\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"A vulnerability in the Multi-Pod or Multi-Site network configurations for Cisco Nexus 9000 Series Fabric Switches in Application Centric Infrastructure (ACI) mode could allow an unauthenticated, remote attacker to unexpectedly restart the device, resulting in a denial of service (DoS) condition. This vulnerability exists because TCP traffic sent to a specific port on an affected device is not properly sanitized. An attacker could exploit this vulnerability by sending crafted TCP data to a specific port that is listening on a public-facing IP address for the Multi-Pod or Multi-Site configuration. A successful exploit could allow the attacker to cause the device to restart unexpectedly, resulting in a DoS condition.\"},{\"lang\":\"es\",\"value\":\"Una vulnerabilidad en las configuraciones de red Multi-Pod o Multi-Site para Cisco Nexus 9000 Series Fabric Switches en el modo Application Centric Infrastructure (ACI) podr\u00eda permitir a un atacante remoto no autenticado reiniciar inesperadamente el dispositivo, resultando en una condici\u00f3n de denegaci\u00f3n de servicio (DoS). Esta vulnerabilidad se presenta porque el tr\u00e1fico TCP enviado a un puerto espec\u00edfico en un dispositivo afectado no se sanea apropiadamente. Un atacante podr\u00eda explotar esta vulnerabilidad mediante el env\u00edo de datos TCP dise\u00f1ados a un puerto espec\u00edfico que est\u00e1 escuchando en una direcci\u00f3n IP p\u00fablica para la configuraci\u00f3n de Multi-Pod o Multi-Site. Una explotaci\u00f3n con \u00e9xito podr\u00eda permitir al atacante causar que el dispositivo se reinicie inesperadamente, resultando en una condici\u00f3n de DoS.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"ykramarz@cisco.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H\",\"baseScore\":8.6,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":4.0},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H\",\"baseScore\":8.6,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":4.0}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:L/Au:N/C:N/I:N/A:P\",\"baseScore\":5.0,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"PARTIAL\"},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":10.0,\"impactScore\":2.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"ykramarz@cisco.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-345\"}]},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-345\"}]}],\"configurations\":[{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:nx-os:15.0\\\\(2e\\\\):*:*:*:*:*:*:*\",\"matchCriteriaId\":\"11E2E40A-CCD5-4CA7-826E-10923BED72E8\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:nx-os:15.1\\\\(1h\\\\):*:*:*:*:*:*:*\",\"matchCriteriaId\":\"C78C9E79-C6DC-4FE3-8B79-A9BEBED9A67D\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_9000v:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"0CD9C1F1-8582-4F67-A77D-97CBFECB88B8\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_92160yc-x:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"4283E433-7F8C-4410-B565-471415445811\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_92300yc:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"F80AB6FB-32FD-43D7-A9F1-80FA47696210\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_92304qc:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"D5B2E4C1-2627-4B9D-8E92-4B483F647651\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_92348gc-x:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"557ED31C-C26A-4FAE-8B14-D06B49F7F08B\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_9236c:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"11411BFD-3F4D-4309-AB35-A3629A360FB0\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_9272q:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"E663DE91-C86D-48DC-B771-FA72A8DF7A7C\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_93108tc-ex:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"A90184B3-C82F-4CE5-B2AD-97D5E4690871\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_93108tc-ex-24:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"40E40F42-632A-47DF-BE33-DC25B826310B\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_93108tc-fx:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"4AB89849-6DA4-4C9D-BC3F-EE0E41FD1901\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_93108tc-fx-24:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"C47F6BF9-2ADB-41A4-8D7D-8BB00141BB23\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_93108tc-fx3p:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"BBEF7F26-BB47-44BD-872E-130820557C23\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_93120tx:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"07DE6F63-2C7D-415B-8C34-01EC05C062F3\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_93128tx:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"F423E45D-A6DD-4305-9C6A-EAB26293E53A\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_9316d-gx:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"102F91CD-DFB6-43D4-AE5B-DA157A696230\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_93180lc-ex:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"E952A96A-0F48-4357-B7DD-1127D8827650\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_93180yc-ex:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"F70D81F1-8B12-4474-9060-B4934D8A3873\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_93180yc-ex-24:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"5394DE31-3863-4CA9-B7B1-E5227183100D\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_93180yc-fx:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"7349D69B-D8FA-4462-AA28-69DD18A652D9\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_93180yc-fx-24:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"FE4BB834-2C00-4384-A78E-AF3BCDDC58AF\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_93180yc-fx3:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"B0D30D52-837F-4FDA-B8E5-A9066E9C6D2F\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_93180yc-fx3s:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"7CE49B45-F2E9-491D-9C29-1B46E9CE14E2\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_93216tc-fx2:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"B1CC5F78-E88B-4B82-9E3E-C73D3A49DE26\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_93240yc-fx2:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"91231DC6-2773-4238-8C14-A346F213B5E5\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_9332c:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"2DF88547-BAF4-47B0-9F60-80A30297FCEB\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_9332pq:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"113772B6-E9D2-4094-9468-3F4E1A87D07D\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_93360yc-fx2:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"C45A38D6-BED6-4FEF-AD87-A1E813695DE0\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_9336c-fx2:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"F1FC2B1F-232E-4754-8076-CC82F3648730\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_9336c-fx2-e:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"7CDD27C9-5EAF-4956-8AB7-740C84C9D4FC\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_9348gc-fxp:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"17C7E3DB-8E1A-47AD-B1C5-61747DC0CFB9\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_93600cd-gx:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"2CF467E2-4567-426E-8F48-39669E0F514C\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_9364c:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"63842B25-8C32-4988-BBBD-61E9CB09B4F3\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_9364c-gx:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"68EA1FEF-B6B6-49FE-A0A4-5387F76303F8\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_9372px:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"4364ADB9-8162-451D-806A-B98924E6B2CF\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_9372px-e:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"B53BCB42-ED61-4FCF-8068-CB467631C63C\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_9372tx:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"49E0371B-FDE2-473C-AA59-47E1269D050F\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_9372tx-e:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"489D11EC-5A18-4F32-BC7C-AC1FCEC27222\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_9396px:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"1BC5293E-F2B4-46DC-85DA-167EA323FCFD\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_9396tx:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"EA022E77-6557-4A33-9A3A-D028E2DB669A\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_9508:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"DDC2F709-AFBE-48EA-A3A2-DA1134534FB6\"}]}]}],\"references\":[{\"url\":\"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-n9kaci-tcp-dos-YXukt6gM\",\"source\":\"ykramarz@cisco.com\",\"tags\":[\"Patch\",\"Vendor Advisory\"]},{\"url\":\"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-n9kaci-tcp-dos-YXukt6gM\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\",\"Vendor Advisory\"]}]}}" } }
Loading…
Loading…
Sightings
Author | Source | Type | Date |
---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.