cve-2024-20446
Vulnerability from cvelistv5
Published
2024-08-28 16:31
Modified
2024-08-28 18:49
Severity ?
EPSS score ?
Summary
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.
This 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.
References
Impacted products
Vendor | Product | Version | |
---|---|---|---|
▼ | Cisco | Cisco NX-OS Software |
Version: 10.2(1) Version: 10.2(1q) Version: 9.3(9) Version: 8.2(11) |
|
{ "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", "vulnerability-lookup:meta": { "fkie_nvd": { "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.\"}]", "id": "CVE-2024-20446", "lastModified": "2024-08-29T13:25:27.537", "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}]}", "published": "2024-08-28T17:15:09.997", "references": "[{\"url\": \"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nxos-dhcp6-relay-dos-znEAA6xn\", \"source\": \"ykramarz@cisco.com\"}]", "sourceIdentifier": "ykramarz@cisco.com", "vulnStatus": "Undergoing Analysis", "weaknesses": "[{\"source\": \"ykramarz@cisco.com\", \"type\": \"Secondary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-476\"}]}]" }, "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\":\"Undergoing 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\",\"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}]},\"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\"}]}}", "vulnrichment": { "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2024-20446\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-08-28T18:45:44.020456Z\"}}}], \"affected\": [{\"cpes\": [\"cpe:2.3:o:cisco:nx-os:10.2\\\\(1\\\\):*:*:*:*:*:*:*\"], \"vendor\": \"cisco\", \"product\": \"nx-os\", \"versions\": [{\"status\": \"affected\", \"version\": \"10.2\\\\(1\\\\)\"}], \"defaultStatus\": \"unknown\"}, {\"cpes\": [\"cpe:2.3:o:cisco:nx-os:10.2\\\\(1q\\\\):*:*:*:*:*:*:*\"], \"vendor\": \"cisco\", \"product\": \"nx-os\", \"versions\": [{\"status\": \"affected\", \"version\": \"10.2\\\\(1q\\\\)\"}], \"defaultStatus\": \"unknown\"}, {\"cpes\": [\"cpe:2.3:o:cisco:nx-os:9.3\\\\(9\\\\):*:*:*:*:*:*:*\"], \"vendor\": \"cisco\", \"product\": \"nx-os\", \"versions\": [{\"status\": \"affected\", \"version\": \"9.3\\\\(9\\\\)\"}], \"defaultStatus\": \"unknown\"}, {\"cpes\": [\"cpe:2.3:o:cisco:nx-os:8.2\\\\(11\\\\):*:*:*:*:*:*:*\"], \"vendor\": \"cisco\", \"product\": \"nx-os\", \"versions\": [{\"status\": \"affected\", \"version\": \"8.2\\\\(11\\\\)\"}], \"defaultStatus\": \"unknown\"}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-08-28T18:49:23.032Z\"}}], \"cna\": {\"title\": \"Cisco NX-OS Software DHCPv6 Relay Agent Denial of Service Vulnerability\", \"source\": {\"defects\": [\"CSCwk27906\"], \"advisory\": \"cisco-sa-nxos-dhcp6-relay-dos-znEAA6xn\", \"discovery\": \"EXTERNAL\"}, \"metrics\": [{\"format\": \"cvssV3_1\", \"cvssV3_1\": {\"scope\": \"CHANGED\", \"version\": \"3.1\", \"baseScore\": 8.6, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"NONE\"}}], \"affected\": [{\"vendor\": \"Cisco\", \"product\": \"Cisco NX-OS Software\", \"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)\"}], \"defaultStatus\": \"unknown\"}], \"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.\"}], \"references\": [{\"url\": \"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nxos-dhcp6-relay-dos-znEAA6xn\", \"name\": \"cisco-sa-nxos-dhcp6-relay-dos-znEAA6xn\"}], \"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.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"cwe\", \"cweId\": \"CWE-476\", \"description\": \"NULL Pointer Dereference\"}]}], \"providerMetadata\": {\"orgId\": \"d1c1063e-7a18-46af-9102-31f8928bc633\", \"shortName\": \"cisco\", \"dateUpdated\": \"2024-08-28T16:31:32.514Z\"}}}", "cveMetadata": "{\"cveId\": \"CVE-2024-20446\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2024-08-28T18:49:32.927Z\", \"dateReserved\": \"2023-11-08T15:08:07.678Z\", \"assignerOrgId\": \"d1c1063e-7a18-46af-9102-31f8928bc633\", \"datePublished\": \"2024-08-28T16:31:32.514Z\", \"assignerShortName\": \"cisco\"}", "dataType": "CVE_RECORD", "dataVersion": "5.1" } } }
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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.