CVE-2024-20446
Vulnerability from cvelistv5
Published
2024-08-28 16:31
Modified
2024-08-28 18:49
Severity ?
EPSS score ?
Summary
Cisco NX-OS Software DHCPv6 Relay Agent Denial of Service Vulnerability
References
Impacted products
▼ | Vendor | Product |
---|---|---|
Cisco | Cisco NX-OS Software |
{ "containers": { "adp": [ { "affected": [ { "cpes": [ "cpe:2.3:o:cisco:nx-os:10.2\\(1\\):*:*:*:*:*:*:*" ], "defaultStatus": "unknown", "product": "nx-os", "vendor": "cisco", "versions": [ { "status": "affected", "version": "10.2\\(1\\)" } ] }, { "cpes": [ "cpe:2.3:o:cisco:nx-os:10.2\\(1q\\):*:*:*:*:*:*:*" ], "defaultStatus": "unknown", "product": "nx-os", "vendor": "cisco", "versions": [ { "status": "affected", "version": "10.2\\(1q\\)" } ] }, { "cpes": [ "cpe:2.3:o:cisco:nx-os:9.3\\(9\\):*:*:*:*:*:*:*" ], "defaultStatus": "unknown", "product": "nx-os", "vendor": "cisco", "versions": [ { "status": "affected", "version": "9.3\\(9\\)" } ] }, { "cpes": [ "cpe:2.3:o:cisco:nx-os:8.2\\(11\\):*:*:*:*:*:*:*" ], "defaultStatus": "unknown", "product": "nx-os", "vendor": "cisco", "versions": [ { "status": "affected", "version": "8.2\\(11\\)" } ] } ], "metrics": [ { "other": { "content": { "id": "CVE-2024-20446", "options": [ { "Exploitation": "none" }, { "Automatable": "yes" }, { "Technical Impact": "partial" } ], "role": "CISA Coordinator", "timestamp": "2024-08-28T18:45:44.020456Z", "version": "2.0.3" }, "type": "ssvc" } } ], "providerMetadata": { "dateUpdated": "2024-08-28T18:49:32.927Z", "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP" }, "title": "CISA ADP Vulnrichment" } ], "cna": { "affected": [ { "defaultStatus": "unknown", "product": "Cisco NX-OS Software", "vendor": "Cisco", "versions": [ { "status": "affected", "version": "10.2(1)" }, { "status": "affected", "version": "10.2(1q)" }, { "status": "affected", "version": "9.3(9)" }, { "status": "affected", "version": "8.2(11)" } ] } ], "descriptions": [ { "lang": "en", "value": "A vulnerability in the DHCPv6 relay agent of Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device.\r\n\r\nThis vulnerability is due to improper handling of specific fields in a DHCPv6 RELAY-REPLY message. An attacker could exploit this vulnerability by sending a crafted DHCPv6 packet to any IPv6 address that is configured on an affected device. A successful exploit could allow the attacker to cause the dhcp_snoop process to crash and restart multiple times, causing the affected device to reload and 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" }, "format": "cvssV3_1" } ], "problemTypes": [ { "descriptions": [ { "cweId": "CWE-476", "description": "NULL Pointer Dereference", "lang": "en", "type": "cwe" } ] } ], "providerMetadata": { "dateUpdated": "2024-08-28T16:31:32.514Z", "orgId": "d1c1063e-7a18-46af-9102-31f8928bc633", "shortName": "cisco" }, "references": [ { "name": "cisco-sa-nxos-dhcp6-relay-dos-znEAA6xn", "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nxos-dhcp6-relay-dos-znEAA6xn" } ], "source": { "advisory": "cisco-sa-nxos-dhcp6-relay-dos-znEAA6xn", "defects": [ "CSCwk27906" ], "discovery": "EXTERNAL" }, "title": "Cisco NX-OS Software DHCPv6 Relay Agent Denial of Service Vulnerability" } }, "cveMetadata": { "assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633", "assignerShortName": "cisco", "cveId": "CVE-2024-20446", "datePublished": "2024-08-28T16:31:32.514Z", "dateReserved": "2023-11-08T15:08:07.678Z", "dateUpdated": "2024-08-28T18:49:32.927Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1", "meta": { "nvd": "{\"cve\":{\"id\":\"CVE-2024-20446\",\"sourceIdentifier\":\"ykramarz@cisco.com\",\"published\":\"2024-08-28T17:15:09.997\",\"lastModified\":\"2024-08-29T13:25:27.537\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"A vulnerability in the DHCPv6 relay agent of Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device.\\r\\n\\r\\nThis vulnerability is due to improper handling of specific fields in a DHCPv6 RELAY-REPLY message. An attacker could exploit this vulnerability by sending a crafted DHCPv6 packet to any IPv6 address that is configured on an affected device. A successful exploit could allow the attacker to cause the dhcp_snoop process to crash and restart multiple times, causing the affected device to reload and resulting in a DoS condition.\"},{\"lang\":\"es\",\"value\":\"Una vulnerabilidad en el agente de retransmisi\u00f3n DHCPv6 de Cisco NX-OS Software podr\u00eda permitir que un atacante remoto no autenticado provoque una condici\u00f3n de denegaci\u00f3n de servicio (DoS) en un dispositivo afectado. Esta vulnerabilidad se debe a un manejo inadecuado de campos espec\u00edficos en un mensaje RELAY-REPLY de DHCPv6. Un atacante podr\u00eda aprovechar esta vulnerabilidad enviando un paquete DHCPv6 manipulado a cualquier direcci\u00f3n IPv6 que est\u00e9 configurada en un dispositivo afectado. Una explotaci\u00f3n exitosa podr\u00eda permitir que el atacante provoque que el proceso dhcp_snoop se bloquee y se reinicie varias veces, lo que hace que el dispositivo afectado se recargue y genere 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\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\",\"baseScore\":8.6,\"baseSeverity\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":4.0}]},\"weaknesses\":[{\"source\":\"ykramarz@cisco.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-476\"}]}],\"references\":[{\"url\":\"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nxos-dhcp6-relay-dos-znEAA6xn\",\"source\":\"ykramarz@cisco.com\"}]}}" } }
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Sightings
Author | Source | Type | Date |
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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.