var-201908-0856
Vulnerability from variot
A vulnerability within the Endpoint Learning feature of Cisco Nexus 9000 Series Switches running in Application Centric Infrastructure (ACI) mode could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an endpoint device in certain circumstances. The vulnerability is due to improper endpoint learning when packets are received on a specific port from outside the ACI fabric and destined to an endpoint located on a border leaf when Disable Remote Endpoint Learning has been enabled. This can result in a Remote (XR) entry being created for the impacted endpoint that will become stale if the endpoint migrates to a different port or leaf switch. This results in traffic not reaching the impacted endpoint until the Remote entry can be relearned by another mechanism. Cisco Nexus 9000 Series switches have a state vulnerability.Service operation interruption (DoS) There is a possibility of being put into a state. NX-OS ACI Software is one of the operating systems used in Cisco network equipment. A remote attacker could exploit this vulnerability to cause a denial of service
Show details on source website{
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/VARIoTentry#",
"affected_products": {
"@id": "https://www.variotdbs.pl/ref/affected_products"
},
"configurations": {
"@id": "https://www.variotdbs.pl/ref/configurations"
},
"credits": {
"@id": "https://www.variotdbs.pl/ref/credits"
},
"cvss": {
"@id": "https://www.variotdbs.pl/ref/cvss/"
},
"description": {
"@id": "https://www.variotdbs.pl/ref/description/"
},
"exploit_availability": {
"@id": "https://www.variotdbs.pl/ref/exploit_availability/"
},
"external_ids": {
"@id": "https://www.variotdbs.pl/ref/external_ids/"
},
"iot": {
"@id": "https://www.variotdbs.pl/ref/iot/"
},
"iot_taxonomy": {
"@id": "https://www.variotdbs.pl/ref/iot_taxonomy/"
},
"patch": {
"@id": "https://www.variotdbs.pl/ref/patch/"
},
"problemtype_data": {
"@id": "https://www.variotdbs.pl/ref/problemtype_data/"
},
"references": {
"@id": "https://www.variotdbs.pl/ref/references/"
},
"sources": {
"@id": "https://www.variotdbs.pl/ref/sources/"
},
"sources_release_date": {
"@id": "https://www.variotdbs.pl/ref/sources_release_date/"
},
"sources_update_date": {
"@id": "https://www.variotdbs.pl/ref/sources_update_date/"
},
"threat_type": {
"@id": "https://www.variotdbs.pl/ref/threat_type/"
},
"title": {
"@id": "https://www.variotdbs.pl/ref/title/"
},
"type": {
"@id": "https://www.variotdbs.pl/ref/type/"
}
},
"@id": "https://www.variotdbs.pl/vuln/VAR-201908-0856",
"affected_products": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/affected_products#",
"data": {
"@container": "@list"
},
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
},
"@id": "https://www.variotdbs.pl/ref/sources"
}
},
"data": [
{
"model": "nx-os",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "13.1\\(2p\\)"
},
{
"model": "nx-os",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "13.1\\(2o\\)"
},
{
"model": "nx-os",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "13.1\\(2m\\)"
},
{
"model": "nx-os",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "12.3\\(1h\\)"
},
{
"model": "nx-os",
"scope": null,
"trust": 0.8,
"vendor": "cisco",
"version": null
}
],
"sources": [
{
"db": "JVNDB",
"id": "JVNDB-2019-008863"
},
{
"db": "NVD",
"id": "CVE-2019-1977"
}
]
},
"configurations": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/configurations#",
"children": {
"@container": "@list"
},
"cpe_match": {
"@container": "@list"
},
"data": {
"@container": "@list"
},
"nodes": {
"@container": "@list"
}
},
"data": [
{
"CVE_data_version": "4.0",
"nodes": [
{
"children": [
{
"children": [],
"cpe_match": [
{
"cpe23Uri": "cpe:2.3:o:cisco:nx-os:12.3\\(1h\\):*:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:o:cisco:nx-os:13.1\\(2m\\):*:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:o:cisco:nx-os:13.1\\(2o\\):*:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:o:cisco:nx-os:13.1\\(2p\\):*:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": true
}
],
"operator": "OR"
},
{
"children": [],
"cpe_match": [
{
"cpe23Uri": "cpe:2.3:h:cisco:nexus_93120tx:-:*:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": false
},
{
"cpe23Uri": "cpe:2.3:h:cisco:nexus_93128tx:-:*:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": false
},
{
"cpe23Uri": "cpe:2.3:h:cisco:nexus_93180lc-ex:-:*:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": false
},
{
"cpe23Uri": "cpe:2.3:h:cisco:nexus_93180yc-ex:-:*:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": false
},
{
"cpe23Uri": "cpe:2.3:h:cisco:nexus_93180yc-fx:-:*:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": false
},
{
"cpe23Uri": "cpe:2.3:h:cisco:nexus_9508:-:*:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": false
},
{
"cpe23Uri": "cpe:2.3:h:cisco:nexus_9516:-:*:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": false
},
{
"cpe23Uri": "cpe:2.3:h:cisco:nexus_93108tc-ex:-:*:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": false
},
{
"cpe23Uri": "cpe:2.3:h:cisco:nexus_9332pq:-:*:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": false
},
{
"cpe23Uri": "cpe:2.3:h:cisco:nexus_9336pq:-:*:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": false
},
{
"cpe23Uri": "cpe:2.3:h:cisco:nexus_9396px:-:*:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": false
},
{
"cpe23Uri": "cpe:2.3:h:cisco:nexus_9504:-:*:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": false
},
{
"cpe23Uri": "cpe:2.3:h:cisco:nexus_9364c:-:*:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": false
},
{
"cpe23Uri": "cpe:2.3:h:cisco:nexus_9372px:-:*:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": false
},
{
"cpe23Uri": "cpe:2.3:h:cisco:nexus_9372px-e:-:*:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": false
},
{
"cpe23Uri": "cpe:2.3:h:cisco:nexus_9372tx:-:*:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": false
},
{
"cpe23Uri": "cpe:2.3:h:cisco:nexus_9000:-:*:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": false
},
{
"cpe23Uri": "cpe:2.3:h:cisco:nexus_93108tc-fx:-:*:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": false
},
{
"cpe23Uri": "cpe:2.3:h:cisco:nexus_9336c-fx2:-:*:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": false
},
{
"cpe23Uri": "cpe:2.3:h:cisco:nexus_9348gc-fxp:-:*:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": false
},
{
"cpe23Uri": "cpe:2.3:h:cisco:nexus_9372tx-e:-:*:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": false
},
{
"cpe23Uri": "cpe:2.3:h:cisco:nexus_9396tx:-:*:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": false
}
],
"operator": "OR"
}
],
"cpe_match": [],
"operator": "AND"
}
]
}
],
"sources": [
{
"db": "NVD",
"id": "CVE-2019-1977"
}
]
},
"cve": "CVE-2019-1977",
"cvss": {
"@context": {
"cvssV2": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/cvss/cvssV2#"
},
"@id": "https://www.variotdbs.pl/ref/cvss/cvssV2"
},
"cvssV3": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/cvss/cvssV3#"
},
"@id": "https://www.variotdbs.pl/ref/cvss/cvssV3/"
},
"severity": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/cvss/severity#"
},
"@id": "https://www.variotdbs.pl/ref/cvss/severity"
},
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
},
"@id": "https://www.variotdbs.pl/ref/sources"
}
},
"data": [
{
"cvssV2": [
{
"acInsufInfo": false,
"accessComplexity": "MEDIUM",
"accessVector": "NETWORK",
"authentication": "NONE",
"author": "NVD",
"availabilityImpact": "PARTIAL",
"baseScore": 4.3,
"confidentialityImpact": "NONE",
"exploitabilityScore": 8.6,
"impactScore": 2.9,
"integrityImpact": "NONE",
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"severity": "MEDIUM",
"trust": 1.0,
"userInteractionRequired": false,
"vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P",
"version": "2.0"
},
{
"acInsufInfo": null,
"accessComplexity": "Medium",
"accessVector": "Network",
"authentication": "None",
"author": "NVD",
"availabilityImpact": "Partial",
"baseScore": 4.3,
"confidentialityImpact": "None",
"exploitabilityScore": null,
"id": "CVE-2019-1977",
"impactScore": null,
"integrityImpact": "None",
"obtainAllPrivilege": null,
"obtainOtherPrivilege": null,
"obtainUserPrivilege": null,
"severity": "Medium",
"trust": 0.8,
"userInteractionRequired": null,
"vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P",
"version": "2.0"
},
{
"accessComplexity": "MEDIUM",
"accessVector": "NETWORK",
"authentication": "NONE",
"author": "VULHUB",
"availabilityImpact": "PARTIAL",
"baseScore": 4.3,
"confidentialityImpact": "NONE",
"exploitabilityScore": 8.6,
"id": "VHN-152249",
"impactScore": 2.9,
"integrityImpact": "NONE",
"severity": "MEDIUM",
"trust": 0.1,
"vectorString": "AV:N/AC:M/AU:N/C:N/I:N/A:P",
"version": "2.0"
}
],
"cvssV3": [
{
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"author": "NVD",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"exploitabilityScore": 3.9,
"impactScore": 3.6,
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"trust": 1.0,
"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"
},
{
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"author": "ykramarz@cisco.com",
"availabilityImpact": "HIGH",
"baseScore": 6.8,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"exploitabilityScore": 2.2,
"impactScore": 4.0,
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "CHANGED",
"trust": 1.0,
"userInteraction": "NONE",
"vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H",
"version": "3.0"
},
{
"attackComplexity": "Low",
"attackVector": "Network",
"author": "NVD",
"availabilityImpact": "High",
"baseScore": 7.5,
"baseSeverity": "High",
"confidentialityImpact": "None",
"exploitabilityScore": null,
"id": "CVE-2019-1977",
"impactScore": null,
"integrityImpact": "None",
"privilegesRequired": "None",
"scope": "Unchanged",
"trust": 0.8,
"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"
}
],
"severity": [
{
"author": "NVD",
"id": "CVE-2019-1977",
"trust": 1.8,
"value": "HIGH"
},
{
"author": "ykramarz@cisco.com",
"id": "CVE-2019-1977",
"trust": 1.0,
"value": "MEDIUM"
},
{
"author": "CNNVD",
"id": "CNNVD-201908-2134",
"trust": 0.6,
"value": "HIGH"
},
{
"author": "VULHUB",
"id": "VHN-152249",
"trust": 0.1,
"value": "MEDIUM"
}
]
}
],
"sources": [
{
"db": "VULHUB",
"id": "VHN-152249"
},
{
"db": "JVNDB",
"id": "JVNDB-2019-008863"
},
{
"db": "NVD",
"id": "CVE-2019-1977"
},
{
"db": "NVD",
"id": "CVE-2019-1977"
},
{
"db": "CNNVD",
"id": "CNNVD-201908-2134"
}
]
},
"description": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/description#",
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
}
}
},
"data": "A vulnerability within the Endpoint Learning feature of Cisco Nexus 9000 Series Switches running in Application Centric Infrastructure (ACI) mode could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an endpoint device in certain circumstances. The vulnerability is due to improper endpoint learning when packets are received on a specific port from outside the ACI fabric and destined to an endpoint located on a border leaf when Disable Remote Endpoint Learning has been enabled. This can result in a Remote (XR) entry being created for the impacted endpoint that will become stale if the endpoint migrates to a different port or leaf switch. This results in traffic not reaching the impacted endpoint until the Remote entry can be relearned by another mechanism. Cisco Nexus 9000 Series switches have a state vulnerability.Service operation interruption (DoS) There is a possibility of being put into a state. NX-OS ACI Software is one of the operating systems used in Cisco network equipment. A remote attacker could exploit this vulnerability to cause a denial of service",
"sources": [
{
"db": "NVD",
"id": "CVE-2019-1977"
},
{
"db": "JVNDB",
"id": "JVNDB-2019-008863"
},
{
"db": "VULHUB",
"id": "VHN-152249"
}
],
"trust": 1.71
},
"external_ids": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/external_ids#",
"data": {
"@container": "@list"
},
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
}
}
},
"data": [
{
"db": "NVD",
"id": "CVE-2019-1977",
"trust": 2.5
},
{
"db": "JVNDB",
"id": "JVNDB-2019-008863",
"trust": 0.8
},
{
"db": "CNNVD",
"id": "CNNVD-201908-2134",
"trust": 0.7
},
{
"db": "AUSCERT",
"id": "ESB-2019.3277",
"trust": 0.6
},
{
"db": "VULHUB",
"id": "VHN-152249",
"trust": 0.1
}
],
"sources": [
{
"db": "VULHUB",
"id": "VHN-152249"
},
{
"db": "JVNDB",
"id": "JVNDB-2019-008863"
},
{
"db": "NVD",
"id": "CVE-2019-1977"
},
{
"db": "CNNVD",
"id": "CNNVD-201908-2134"
}
]
},
"id": "VAR-201908-0856",
"iot": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/iot#",
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
}
}
},
"data": true,
"sources": [
{
"db": "VULHUB",
"id": "VHN-152249"
}
],
"trust": 0.01
},
"last_update_date": "2023-12-18T11:59:47.813000Z",
"patch": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/patch#",
"data": {
"@container": "@list"
},
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
}
}
},
"data": [
{
"title": "cisco-sa-20190828-nexus-aci-dos",
"trust": 0.8,
"url": "https://tools.cisco.com/security/center/content/ciscosecurityadvisory/cisco-sa-20190828-nexus-aci-dos"
},
{
"title": "Cisco\u00a0Nexus 9000 Series Switches NX-OS ACI Software Security vulnerabilities",
"trust": 0.6,
"url": "http://www.cnnvd.org.cn/web/xxk/bdxqbyid.tag?id=97622"
}
],
"sources": [
{
"db": "JVNDB",
"id": "JVNDB-2019-008863"
},
{
"db": "CNNVD",
"id": "CNNVD-201908-2134"
}
]
},
"problemtype_data": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/problemtype_data#",
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
}
}
},
"data": [
{
"problemtype": "CWE-371",
"trust": 1.9
}
],
"sources": [
{
"db": "VULHUB",
"id": "VHN-152249"
},
{
"db": "JVNDB",
"id": "JVNDB-2019-008863"
},
{
"db": "NVD",
"id": "CVE-2019-1977"
}
]
},
"references": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/references#",
"data": {
"@container": "@list"
},
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
}
}
},
"data": [
{
"trust": 1.7,
"url": "https://tools.cisco.com/security/center/content/ciscosecurityadvisory/cisco-sa-20190828-nexus-aci-dos"
},
{
"trust": 1.4,
"url": "https://nvd.nist.gov/vuln/detail/cve-2019-1977"
},
{
"trust": 0.8,
"url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2019-1977"
},
{
"trust": 0.6,
"url": "https://vigilance.fr/vulnerability/cisco-nexus-9000-denial-of-service-via-endpoint-learning-30186"
},
{
"trust": 0.6,
"url": "https://www.auscert.org.au/bulletins/esb-2019.3277/"
}
],
"sources": [
{
"db": "VULHUB",
"id": "VHN-152249"
},
{
"db": "JVNDB",
"id": "JVNDB-2019-008863"
},
{
"db": "NVD",
"id": "CVE-2019-1977"
},
{
"db": "CNNVD",
"id": "CNNVD-201908-2134"
}
]
},
"sources": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#",
"data": {
"@container": "@list"
}
},
"data": [
{
"db": "VULHUB",
"id": "VHN-152249"
},
{
"db": "JVNDB",
"id": "JVNDB-2019-008863"
},
{
"db": "NVD",
"id": "CVE-2019-1977"
},
{
"db": "CNNVD",
"id": "CNNVD-201908-2134"
}
]
},
"sources_release_date": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources_release_date#",
"data": {
"@container": "@list"
}
},
"data": [
{
"date": "2019-08-30T00:00:00",
"db": "VULHUB",
"id": "VHN-152249"
},
{
"date": "2019-09-06T00:00:00",
"db": "JVNDB",
"id": "JVNDB-2019-008863"
},
{
"date": "2019-08-30T09:15:20.553000",
"db": "NVD",
"id": "CVE-2019-1977"
},
{
"date": "2019-08-28T00:00:00",
"db": "CNNVD",
"id": "CNNVD-201908-2134"
}
]
},
"sources_update_date": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources_update_date#",
"data": {
"@container": "@list"
}
},
"data": [
{
"date": "2019-10-09T00:00:00",
"db": "VULHUB",
"id": "VHN-152249"
},
{
"date": "2019-09-06T00:00:00",
"db": "JVNDB",
"id": "JVNDB-2019-008863"
},
{
"date": "2019-10-09T23:48:44.597000",
"db": "NVD",
"id": "CVE-2019-1977"
},
{
"date": "2019-09-06T00:00:00",
"db": "CNNVD",
"id": "CNNVD-201908-2134"
}
]
},
"threat_type": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/threat_type#",
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
}
}
},
"data": "remote",
"sources": [
{
"db": "CNNVD",
"id": "CNNVD-201908-2134"
}
],
"trust": 0.6
},
"title": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/title#",
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
}
}
},
"data": "Cisco Nexus 9000 Series switch state vulnerability",
"sources": [
{
"db": "JVNDB",
"id": "JVNDB-2019-008863"
}
],
"trust": 0.8
},
"type": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/type#",
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
}
}
},
"data": "other",
"sources": [
{
"db": "CNNVD",
"id": "CNNVD-201908-2134"
}
],
"trust": 0.6
}
}
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.