CVE-2021-1379
Vulnerability from cvelistv5
Published
2024-11-18 15:42
Modified
2024-11-18 16:23
Severity ?
EPSS score ?
Summary
Cisco IP Phones Cisco Discovery Protocol and Link Layer Discovery Protocol Remote Code Execution and Denial of Service Vulnerabilities
References
Impacted products
{
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"content": {
"id": "CVE-2021-1379",
"options": [
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"timestamp": "2024-11-18T16:22:56.651830Z",
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{
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{
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"version": "12.5(1)SR3"
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"version": "10.3(1)SR4b"
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{
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"version": "9.3(4)SR1 3rd Party"
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"version": "10.3(1)SR5"
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"version": "11.0(3)"
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"version": "11.0(5)SR2"
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"version": "11.0(3)SR6"
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"version": "11.0(5)SR1"
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"version": "11.0(4)SR2"
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"version": "11.0(3)SR1"
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"version": "11.0(3)SR5"
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"vendor": "Cisco",
"versions": [
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"status": "affected",
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{
"status": "affected",
"version": "7.4.3"
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"version": "7.5.5a"
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"version": "7.3.7"
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"version": "7.5.2"
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"version": "7.5.1"
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"version": "7.4.6"
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"version": "7.5.3"
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"version": "7.5.6(XU)"
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{
"status": "affected",
"version": "7.5.7s"
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"status": "affected",
"version": "7.6.2SR4"
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{
"status": "affected",
"version": "7.6.2SR1"
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"version": "7.4.9"
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],
"descriptions": [
{
"lang": "en",
"value": "Multiple vulnerabilities in the Cisco\u0026nbsp;Discovery Protocol and Link Layer Discovery Protocol (LLDP) implementations for Cisco\u0026nbsp;IP Phone Series 68xx/78xx/88xx could allow an unauthenticated, adjacent attacker to execute code remotely or cause a reload of an affected IP phone.\r\nThese vulnerabilities are due to missing checks when the IP phone processes a Cisco\u0026nbsp;Discovery Protocol or LLDP packet. An attacker could exploit these vulnerabilities by sending a malicious Cisco\u0026nbsp;Discovery Protocol or LLDP packet to the targeted IP phone. A successful exploit could allow the attacker to execute code on the affected IP phone or cause it to reload unexpectedly, resulting in a denial of service (DoS) condition.Note: Cisco\u0026nbsp;Discovery Protocol is a Layer 2 protocol. To exploit these vulnerabilities, an attacker must be in the same broadcast domain as the affected device (Layer 2 adjacent).Cisco\u0026nbsp;has released software updates that address these vulnerabilities. There are no workarounds that address these vulnerabilities."
}
],
"exploits": [
{
"lang": "en",
"value": "The Cisco\u00a0Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerabilities that are described in this advisory."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "ADJACENT_NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/RL:X/RC:X/E:X",
"version": "3.1"
},
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}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-120",
"description": "Buffer Copy without Checking Size of Input (\u0027Classic Buffer Overflow\u0027)",
"lang": "en",
"type": "cwe"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2024-11-18T15:42:00.388Z",
"orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
"shortName": "cisco"
},
"references": [
{
"name": "cisco-sa-ipphone-rce-dos-U2PsSkz3",
"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ipphone-rce-dos-U2PsSkz3"
},
{
"name": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-webex-distupd-N87eB6Z3",
"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-webex-distupd-N87eB6Z3"
}
],
"source": {
"advisory": "cisco-sa-ipphone-rce-dos-U2PsSkz3",
"defects": [
"CSCvu59351"
],
"discovery": "EXTERNAL"
},
"title": "Cisco IP Phones Cisco Discovery Protocol and Link Layer Discovery Protocol Remote Code Execution and Denial of Service Vulnerabilities"
}
},
"cveMetadata": {
"assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
"assignerShortName": "cisco",
"cveId": "CVE-2021-1379",
"datePublished": "2024-11-18T15:42:00.388Z",
"dateReserved": "2020-11-13T00:00:00.000Z",
"dateUpdated": "2024-11-18T16:23:13.534Z",
"state": "PUBLISHED"
},
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"meta": {
"nvd": "{\"cve\":{\"id\":\"CVE-2021-1379\",\"sourceIdentifier\":\"ykramarz@cisco.com\",\"published\":\"2024-11-18T16:15:09.310\",\"lastModified\":\"2024-11-18T17:11:17.393\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Multiple vulnerabilities in the Cisco\u0026nbsp;Discovery Protocol and Link Layer Discovery Protocol (LLDP) implementations for Cisco\u0026nbsp;IP Phone Series 68xx/78xx/88xx could allow an unauthenticated, adjacent attacker to execute code remotely or cause a reload of an affected IP phone.\\r\\nThese vulnerabilities are due to missing checks when the IP phone processes a Cisco\u0026nbsp;Discovery Protocol or LLDP packet. An attacker could exploit these vulnerabilities by sending a malicious Cisco\u0026nbsp;Discovery Protocol or LLDP packet to the targeted IP phone. A successful exploit could allow the attacker to execute code on the affected IP phone or cause it to reload unexpectedly, resulting in a denial of service (DoS) condition.Note: Cisco\u0026nbsp;Discovery Protocol is a Layer 2 protocol. To exploit these vulnerabilities, an attacker must be in the same broadcast domain as the affected device (Layer 2 adjacent).Cisco\u0026nbsp;has released software updates that address these vulnerabilities. There are no workarounds that address these vulnerabilities.\"},{\"lang\":\"es\",\"value\":\"Varias vulnerabilidades en las implementaciones de Cisco Discovery Protocol y Link Layer Discovery Protocol (LLDP) para los tel\u00e9fonos IP de Cisco de las series 68xx/78xx/88xx podr\u00edan permitir que un atacante adyacente no autenticado ejecute c\u00f3digo de forma remota o provoque una recarga de un tel\u00e9fono IP afectado. Estas vulnerabilidades se deben a la falta de comprobaciones cuando el tel\u00e9fono IP procesa un paquete Cisco Discovery Protocol o LLDP. Un atacante podr\u00eda explotar estas vulnerabilidades enviando un paquete Cisco Discovery Protocol o LLDP malicioso al tel\u00e9fono IP de destino. Una explotaci\u00f3n exitosa podr\u00eda permitir al atacante ejecutar c\u00f3digo en el tel\u00e9fono IP afectado o hacer que se recargue inesperadamente, lo que resultar\u00eda en una condici\u00f3n de denegaci\u00f3n de servicio (DoS). Nota: Cisco Discovery Protocol es un protocolo de capa 2. Para explotar estas vulnerabilidades, un atacante debe estar en el mismo dominio de difusi\u00f3n que el dispositivo afectado (adyacente a la capa 2). Cisco ha publicado actualizaciones de software que solucionan estas vulnerabilidades. No existen workarounds que solucionen estas vulnerabilidades.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"ykramarz@cisco.com\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\",\"attackVector\":\"ADJACENT_NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\",\"baseScore\":6.5,\"baseSeverity\":\"MEDIUM\"},\"exploitabilityScore\":2.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"ykramarz@cisco.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-120\"}]}],\"references\":[{\"url\":\"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ipphone-rce-dos-U2PsSkz3\",\"source\":\"ykramarz@cisco.com\"},{\"url\":\"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-webex-distupd-N87eB6Z3\",\"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.