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 |
|---|
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.