fkie_cve-2021-34727
Vulnerability from fkie_nvd
Published
2021-09-23 03:15
Modified
2024-11-21 06:11
Severity ?
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
A vulnerability in the vDaemon process in Cisco IOS XE SD-WAN Software could allow an unauthenticated, remote attacker to cause a buffer overflow on an affected device. This vulnerability is due to insufficient bounds checking when an affected device processes traffic. An attacker could exploit this vulnerability by sending crafted traffic to the device. A successful exploit could allow the attacker to cause a buffer overflow and possibly execute arbitrary commands with root-level privileges, or cause the device to reload, which could result in a denial of service condition.
References
psirt@cisco.comhttps://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxesdwan-rbuffover-vE2OB6tpVendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxesdwan-rbuffover-vE2OB6tpVendor Advisory
Impacted products
Vendor Product Version
cisco ios_xe_sd-wan -
cisco 1000_integrated_services_router -
cisco 1100-4g\/6g_integrated_services_router -
cisco 1100-4p_integrated_services_router -
cisco 1100-8p_integrated_services_router -
cisco 1100_integrated_services_router -
cisco 1101-4p_integrated_services_router -
cisco 1101_integrated_services_router -
cisco 1109-2p_integrated_services_router -
cisco 1109-4p_integrated_services_router -
cisco 1109_integrated_services_router -
cisco 1111x-8p_integrated_services_router -
cisco 1111x_integrated_services_router -
cisco 111x_integrated_services_router -
cisco 1120_integrated_services_router -
cisco 1160_integrated_services_router -
cisco 4000_integrated_services_router -
cisco 422_integrated_services_router -
cisco 4221_integrated_services_router -
cisco 4321_integrated_services_router -
cisco 4331_integrated_services_router -
cisco 4351_integrated_services_router -
cisco 4431_integrated_services_router -
cisco 4451-x_integrated_services_router -
cisco 4451_integrated_services_router -
cisco 4461_integrated_services_router -
cisco asr_1000 -
cisco asr_1000-esp100 -
cisco asr_1000-x -
cisco asr_1000_series -
cisco asr_1000_series_route_processor_\(rp2\) -
cisco asr_1000_series_route_processor_\(rp3\) -
cisco asr_1001 -
cisco asr_1001-hx -
cisco asr_1001-hx_r -
cisco asr_1001-x -
cisco asr_1001-x_r -
cisco asr_1002 -
cisco asr_1002-hx -
cisco asr_1002-hx_r -
cisco asr_1002-x -
cisco asr_1002-x_r -
cisco asr_1004 -
cisco asr_1006 -
cisco asr_1006-x -
cisco asr_1009-x -
cisco asr_1013 -
cisco asr_1023 -
cisco csr_1000v -


To clipboard 

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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability in the vDaemon process in Cisco IOS XE SD-WAN Software could allow an unauthenticated, remote attacker to cause a buffer overflow on an affected device. This vulnerability is due to insufficient bounds checking when an affected device processes traffic. An attacker could exploit this vulnerability by sending crafted traffic to the device. A successful exploit could allow the attacker to cause a buffer overflow and possibly execute arbitrary commands with root-level privileges, or cause the device to reload, which could result in a denial of service condition."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad en el proceso vDaemon de Cisco IOS XE SD-WAN Software podr\u00eda permitir a un atacante remoto no autenticado causar un desbordamiento del b\u00fafer en un dispositivo afectado. Esta vulnerabilidad es debido a una comprobaci\u00f3n insuficiente de los l\u00edmites cuando un dispositivo afectado procesa el tr\u00e1fico. Un atacante podr\u00eda explotar esta vulnerabilidad mediante el env\u00edo de tr\u00e1fico dise\u00f1ado al dispositivo. Una explotaci\u00f3n con \u00e9xito podr\u00eda permitir al atacante causar un desbordamiento del b\u00fafer y posiblemente ejecutar comandos arbitrarios con privilegios de nivel de root, o causar la recarga del dispositivo, que podr\u00eda resultar en una condici\u00f3n de denegaci\u00f3n de servicio"
    }
  ],
  "id": "CVE-2021-34727",
  "lastModified": "2024-11-21T06:11:03.730",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "HIGH",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "COMPLETE",
          "baseScore": 10.0,
          "confidentialityImpact": "COMPLETE",
          "integrityImpact": "COMPLETE",
          "vectorString": "AV:N/AC:L/Au:N/C:C/I:C/A:C",
          "version": "2.0"
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        "exploitabilityScore": 10.0,
        "impactScore": 10.0,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
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    "cvssMetricV31": [
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        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 9.8,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
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        "exploitabilityScore": 3.9,
        "impactScore": 5.9,
        "source": "psirt@cisco.com",
        "type": "Secondary"
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      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 9.8,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
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        "exploitabilityScore": 3.9,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
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  },
  "published": "2021-09-23T03:15:19.500",
  "references": [
    {
      "source": "psirt@cisco.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxesdwan-rbuffover-vE2OB6tp"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxesdwan-rbuffover-vE2OB6tp"
    }
  ],
  "sourceIdentifier": "psirt@cisco.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-120"
        }
      ],
      "source": "psirt@cisco.com",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-120"
        }
      ],
      "source": "nvd@nist.gov",
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}


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