Vulnerabilites related to cisco - asa_for_nexus_1000v
Vulnerability from fkie_nvd
Published
2022-04-21 19:15
Modified
2024-11-21 06:43
Severity ?
5.8 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
A vulnerability in the implementation of the Datagram TLS (DTLS) protocol in Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause high CPU utilization, resulting in a denial of service (DoS) condition. This vulnerability is due to suboptimal processing that occurs when establishing a DTLS tunnel as part of an AnyConnect SSL VPN connection. An attacker could exploit this vulnerability by sending a steady stream of crafted DTLS traffic to an affected device. A successful exploit could allow the attacker to exhaust resources on the affected VPN headend device. This could cause existing DTLS tunnels to stop passing traffic and prevent new DTLS tunnels from establishing, resulting in a DoS condition. Note: When the attack traffic stops, the device recovers gracefully.
References
Impacted products
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"EB71EB29-0115-4307-A9F7-262394FD9FB0", vulnerable: false, }, { criteria: "cpe:2.3:h:cisco:asa_5545-x:-:*:*:*:*:*:*:*", matchCriteriaId: "57179F60-E330-4FF0-9664-B1E4637FF210", vulnerable: false, }, { criteria: "cpe:2.3:h:cisco:asa_5555-x:-:*:*:*:*:*:*:*", matchCriteriaId: "5535C936-391B-4619-AA03-B35265FC15D7", vulnerable: false, }, { criteria: "cpe:2.3:h:cisco:asa_5580:-:*:*:*:*:*:*:*", matchCriteriaId: "D1E828B8-5ECC-4A09-B2AD-DEDC558713DE", vulnerable: false, }, { criteria: "cpe:2.3:h:cisco:asa_5585-x:-:*:*:*:*:*:*:*", matchCriteriaId: "16AE20C2-C77E-4E04-BF13-A48696E52426", vulnerable: false, }, { criteria: "cpe:2.3:h:cisco:asa_for_nexus_1000v:-:*:*:*:*:*:*:*", matchCriteriaId: "A198A68E-78A8-477F-B6D4-79AAB2C7BE22", vulnerable: false, }, ], negate: false, operator: "OR", }, ], operator: "AND", }, { nodes: [ { cpeMatch: [ { criteria: "cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*", matchCriteriaId: "E8D80E3B-DD36-45E8-9F7F-38111B7FF5E2", versionEndIncluding: "7.0.1", vulnerable: true, }, { criteria: "cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*", matchCriteriaId: "23670904-7E82-4434-A011-2462A56AB56E", versionEndIncluding: "7.1.0.1", versionStartIncluding: "7.1.0.0", vulnerable: true, }, ], negate: false, operator: "OR", }, { cpeMatch: [ { criteria: "cpe:2.3:h:cisco:firepower_1010:-:*:*:*:*:*:*:*", matchCriteriaId: "7FFE3880-4B85-4E23-9836-70875D5109F7", vulnerable: false, }, { criteria: "cpe:2.3:h:cisco:firepower_1120:-:*:*:*:*:*:*:*", matchCriteriaId: "727A02E8-40A1-4DFE-A3A2-91D628D3044F", vulnerable: false, }, { criteria: "cpe:2.3:h:cisco:firepower_1140:-:*:*:*:*:*:*:*", matchCriteriaId: "19F6546E-28F4-40DC-97D6-E0E023FE939B", vulnerable: false, }, { criteria: "cpe:2.3:h:cisco:firepower_1150:-:*:*:*:*:*:*:*", matchCriteriaId: "EB3B0EC3-4654-4D90-9D41-7EC2AD1DDF99", vulnerable: false, }, { criteria: "cpe:2.3:h:cisco:firepower_2110:-:*:*:*:*:*:*:*", matchCriteriaId: "52D96810-5F79-4A83-B8CA-D015790FCF72", vulnerable: false, }, { criteria: "cpe:2.3:h:cisco:firepower_2120:-:*:*:*:*:*:*:*", matchCriteriaId: "16FE2945-4975-4003-AE48-7E134E167A7F", vulnerable: false, }, { criteria: "cpe:2.3:h:cisco:firepower_2130:-:*:*:*:*:*:*:*", matchCriteriaId: "DCE7122A-5AA7-4ECD-B024-E27C9D0CFB7B", vulnerable: false, }, { criteria: "cpe:2.3:h:cisco:firepower_2140:-:*:*:*:*:*:*:*", matchCriteriaId: "976901BF-C52C-4F81-956A-711AF8A60140", vulnerable: false, }, { criteria: "cpe:2.3:h:cisco:firepower_4110:-:*:*:*:*:*:*:*", matchCriteriaId: "A0CBC7F5-7767-43B6-9384-BE143FCDBD7F", vulnerable: false, }, { criteria: "cpe:2.3:h:cisco:firepower_4112:-:*:*:*:*:*:*:*", matchCriteriaId: "957D64EB-D60E-4775-B9A8-B21CA48ED3B1", vulnerable: false, }, { criteria: "cpe:2.3:h:cisco:firepower_4115:-:*:*:*:*:*:*:*", matchCriteriaId: "A694AD51-9008-4AE6-8240-98B17AB527EE", vulnerable: false, }, { criteria: "cpe:2.3:h:cisco:firepower_4120:-:*:*:*:*:*:*:*", matchCriteriaId: "38AE6DC0-2B03-4D36-9856-42530312CC46", vulnerable: false, }, { criteria: "cpe:2.3:h:cisco:firepower_4125:-:*:*:*:*:*:*:*", matchCriteriaId: "71DCEF22-ED20-4330-8502-EC2DD4C9838F", vulnerable: false, }, { criteria: "cpe:2.3:h:cisco:firepower_4140:-:*:*:*:*:*:*:*", matchCriteriaId: "3DB2822B-B752-4CD9-A178-934957E306B4", vulnerable: false, }, { criteria: "cpe:2.3:h:cisco:firepower_4145:-:*:*:*:*:*:*:*", matchCriteriaId: "81F4868A-6D62-479C-9C19-F9AABDBB6B24", vulnerable: false, }, { criteria: "cpe:2.3:h:cisco:firepower_4150:-:*:*:*:*:*:*:*", matchCriteriaId: "65378F3A-777C-4AE2-87FB-1E7402F9EA1B", vulnerable: false, }, { criteria: "cpe:2.3:h:cisco:firepower_9300:-:*:*:*:*:*:*:*", matchCriteriaId: "07DAFDDA-718B-4B69-A524-B0CEB80FE960", vulnerable: false, }, ], negate: false, operator: "OR", }, ], operator: "AND", }, ], cveTags: [], descriptions: [ { lang: "en", value: "A vulnerability in the implementation of the Datagram TLS (DTLS) protocol in Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause high CPU utilization, resulting in a denial of service (DoS) condition. This vulnerability is due to suboptimal processing that occurs when establishing a DTLS tunnel as part of an AnyConnect SSL VPN connection. An attacker could exploit this vulnerability by sending a steady stream of crafted DTLS traffic to an affected device. A successful exploit could allow the attacker to exhaust resources on the affected VPN headend device. This could cause existing DTLS tunnels to stop passing traffic and prevent new DTLS tunnels from establishing, resulting in a DoS condition. Note: When the attack traffic stops, the device recovers gracefully.", }, { lang: "es", value: "Una vulnerabilidad en la implementación del protocolo Datagram TLS (DTLS) en el software Cisco Adaptive Security Appliance (ASA) y el software Cisco Firepower Threat Defense (FTD) podría permitir a un atacante remoto no autenticado causar un alto uso de la CPU, resultando en una condición de denegación de servicio (DoS). Esta vulnerabilidad es debido al procesamiento subóptimo que es producido cuando es establecido un túnel DTLS como parte de una conexión VPN SSL AnyConnect. Un atacante podría aprovechar esta vulnerabilidad mediante el envío de un flujo constante de tráfico DTLS diseñado a un dispositivo afectado. Una explotación con éxito podría permitir al atacante agotar los recursos del dispositivo de encabezado VPN afectado. Esto podría causar que los túneles DTLS existentes dejaran de pasar tráfico e impedir que se establecieran nuevos túneles DTLS, resultando en una condición de DoS. Nota: Cuando el tráfico de ataque es detenido, el dispositivo es recuperado con elegancia", }, ], id: "CVE-2022-20795", lastModified: "2024-11-21T06:43:34.283", metrics: { cvssMetricV2: [ { acInsufInfo: false, baseSeverity: "MEDIUM", cvssData: { accessComplexity: "LOW", accessVector: "NETWORK", authentication: "NONE", availabilityImpact: "PARTIAL", baseScore: 5, confidentialityImpact: "NONE", integrityImpact: "NONE", vectorString: "AV:N/AC:L/Au:N/C:N/I:N/A:P", version: "2.0", }, exploitabilityScore: 10, impactScore: 2.9, obtainAllPrivilege: false, obtainOtherPrivilege: false, obtainUserPrivilege: false, source: "nvd@nist.gov", type: "Primary", userInteractionRequired: false, }, ], cvssMetricV31: [ { cvssData: { attackComplexity: "LOW", attackVector: "NETWORK", availabilityImpact: "LOW", baseScore: 5.8, baseSeverity: "MEDIUM", 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:L", version: "3.1", }, exploitabilityScore: 3.9, impactScore: 1.4, source: "psirt@cisco.com", type: "Secondary", }, { cvssData: { attackComplexity: "LOW", attackVector: "NETWORK", availabilityImpact: "HIGH", baseScore: 7.5, baseSeverity: "HIGH", confidentialityImpact: "NONE", integrityImpact: "NONE", privilegesRequired: "NONE", scope: "UNCHANGED", userInteraction: "NONE", vectorString: "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", version: "3.1", }, exploitabilityScore: 3.9, impactScore: 3.6, source: "nvd@nist.gov", type: "Primary", }, ], }, published: "2022-04-21T19:15:08.740", references: [ { source: "psirt@cisco.com", tags: [ "Vendor Advisory", ], url: "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-vpndtls-dos-TunzLEV", }, { source: "af854a3a-2127-422b-91ae-364da2661108", tags: [ "Vendor Advisory", ], url: "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-vpndtls-dos-TunzLEV", }, ], sourceIdentifier: "psirt@cisco.com", vulnStatus: "Modified", weaknesses: [ { description: [ { lang: "en", value: "CWE-345", }, ], source: "psirt@cisco.com", type: "Secondary", }, { description: [ { lang: "en", value: "CWE-345", }, ], source: "nvd@nist.gov", type: "Primary", }, ], }
cve-2022-20795
Vulnerability from cvelistv5
Published
2022-04-21 18:50
Modified
2024-11-06 16:22
Severity ?
EPSS score ?
Summary
A vulnerability in the implementation of the Datagram TLS (DTLS) protocol in Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause high CPU utilization, resulting in a denial of service (DoS) condition. This vulnerability is due to suboptimal processing that occurs when establishing a DTLS tunnel as part of an AnyConnect SSL VPN connection. An attacker could exploit this vulnerability by sending a steady stream of crafted DTLS traffic to an affected device. A successful exploit could allow the attacker to exhaust resources on the affected VPN headend device. This could cause existing DTLS tunnels to stop passing traffic and prevent new DTLS tunnels from establishing, resulting in a DoS condition. Note: When the attack traffic stops, the device recovers gracefully.
References
| ▼ | URL | Tags |
|---|---|---|
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-vpndtls-dos-TunzLEV | vendor-advisory, x_refsource_CISCO |
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Cisco | Cisco Adaptive Security Appliance (ASA) Software |
Version: n/a |
{ containers: { adp: [ { providerMetadata: { dateUpdated: "2024-08-03T02:24:49.655Z", orgId: "af854a3a-2127-422b-91ae-364da2661108", shortName: "CVE", }, references: [ { name: "20220420 Cisco Adaptive Security Appliance and Cisco Firepower Threat Defense Software AnyConnect SSL VPN Denial of Service Vulnerability", tags: [ "vendor-advisory", "x_refsource_CISCO", "x_transferred", ], url: "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-vpndtls-dos-TunzLEV", }, ], title: "CVE Program Container", }, { metrics: [ { other: { content: { id: "CVE-2022-20795", options: [ { Exploitation: "none", }, { Automatable: "yes", }, { "Technical Impact": "partial", }, ], role: "CISA Coordinator", timestamp: "2024-11-06T16:01:40.319401Z", version: "2.0.3", }, type: "ssvc", }, }, ], providerMetadata: { dateUpdated: "2024-11-06T16:22:08.505Z", orgId: "134c704f-9b21-4f2e-91b3-4a467353bcc0", shortName: "CISA-ADP", }, title: "CISA ADP Vulnrichment", }, ], cna: { affected: [ { product: "Cisco Adaptive Security Appliance (ASA) Software", vendor: "Cisco", versions: [ { status: "affected", version: "n/a", }, ], }, ], datePublic: "2022-04-20T00:00:00", descriptions: [ { lang: "en", value: "A vulnerability in the implementation of the Datagram TLS (DTLS) protocol in Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause high CPU utilization, resulting in a denial of service (DoS) condition. This vulnerability is due to suboptimal processing that occurs when establishing a DTLS tunnel as part of an AnyConnect SSL VPN connection. An attacker could exploit this vulnerability by sending a steady stream of crafted DTLS traffic to an affected device. A successful exploit could allow the attacker to exhaust resources on the affected VPN headend device. This could cause existing DTLS tunnels to stop passing traffic and prevent new DTLS tunnels from establishing, resulting in a DoS condition. Note: When the attack traffic stops, the device recovers gracefully.", }, ], exploits: [ { lang: "en", value: "The Cisco Product Security Incident Response Team (PSIRT) is aware that proof-of-concept exploit code is available for the vulnerability described in this advisory.", }, ], metrics: [ { cvssV3_1: { attackComplexity: "LOW", attackVector: "NETWORK", availabilityImpact: "LOW", baseScore: 5.8, baseSeverity: "MEDIUM", 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:L", version: "3.1", }, }, ], problemTypes: [ { descriptions: [ { cweId: "CWE-345", description: "CWE-345", lang: "en", type: "CWE", }, ], }, ], providerMetadata: { dateUpdated: "2022-04-21T18:50:50", orgId: "d1c1063e-7a18-46af-9102-31f8928bc633", shortName: "cisco", }, references: [ { name: "20220420 Cisco Adaptive Security Appliance and Cisco Firepower Threat Defense Software AnyConnect SSL VPN Denial of Service Vulnerability", tags: [ "vendor-advisory", "x_refsource_CISCO", ], url: "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-vpndtls-dos-TunzLEV", }, ], source: { advisory: "cisco-sa-vpndtls-dos-TunzLEV", defect: [ [ "CSCvz09106", ], ], discovery: "INTERNAL", }, title: "Cisco Adaptive Security Appliance and Cisco Firepower Threat Defense Software AnyConnect SSL VPN Denial of Service Vulnerability", x_legacyV4Record: { CVE_data_meta: { ASSIGNER: "psirt@cisco.com", DATE_PUBLIC: "2022-04-20T16:00:00", ID: "CVE-2022-20795", STATE: "PUBLIC", TITLE: "Cisco Adaptive Security Appliance and Cisco Firepower Threat Defense Software AnyConnect SSL VPN Denial of Service Vulnerability", }, affects: { vendor: { vendor_data: [ { product: { product_data: [ { product_name: "Cisco Adaptive Security Appliance (ASA) Software", version: { version_data: [ { version_value: "n/a", }, ], }, }, ], }, vendor_name: "Cisco", }, ], }, }, data_format: "MITRE", data_type: "CVE", data_version: "4.0", description: { description_data: [ { lang: "eng", value: "A vulnerability in the implementation of the Datagram TLS (DTLS) protocol in Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause high CPU utilization, resulting in a denial of service (DoS) condition. This vulnerability is due to suboptimal processing that occurs when establishing a DTLS tunnel as part of an AnyConnect SSL VPN connection. An attacker could exploit this vulnerability by sending a steady stream of crafted DTLS traffic to an affected device. A successful exploit could allow the attacker to exhaust resources on the affected VPN headend device. This could cause existing DTLS tunnels to stop passing traffic and prevent new DTLS tunnels from establishing, resulting in a DoS condition. Note: When the attack traffic stops, the device recovers gracefully.", }, ], }, exploit: [ { lang: "en", value: "The Cisco Product Security Incident Response Team (PSIRT) is aware that proof-of-concept exploit code is available for the vulnerability described in this advisory.", }, ], impact: { cvss: { baseScore: "5.8", vectorString: "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L", version: "3.0", }, }, problemtype: { problemtype_data: [ { description: [ { lang: "eng", value: "CWE-345", }, ], }, ], }, references: { reference_data: [ { name: "20220420 Cisco Adaptive Security Appliance and Cisco Firepower Threat Defense Software AnyConnect SSL VPN Denial of Service Vulnerability", refsource: "CISCO", url: "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-vpndtls-dos-TunzLEV", }, ], }, source: { advisory: "cisco-sa-vpndtls-dos-TunzLEV", defect: [ [ "CSCvz09106", ], ], discovery: "INTERNAL", }, }, }, }, cveMetadata: { assignerOrgId: "d1c1063e-7a18-46af-9102-31f8928bc633", assignerShortName: "cisco", cveId: "CVE-2022-20795", datePublished: "2022-04-21T18:50:51.145597Z", dateReserved: "2021-11-02T00:00:00", dateUpdated: "2024-11-06T16:22:08.505Z", state: "PUBLISHED", }, dataType: "CVE_RECORD", dataVersion: "5.1", }