FKIE_CVE-2021-1434

Vulnerability from fkie_nvd - Published: 2021-03-24 20:15 - Updated: 2026-06-17 03:31
Severity
4.4 (Medium) - CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N
6.0 (Medium) - CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H
Summary
A vulnerability in the CLI of Cisco IOS XE SD-WAN Software could allow an authenticated, local attacker to overwrite arbitrary files in the underlying file system. This vulnerability is due to insufficient validation of the parameters of a specific CLI command. An attacker could exploit this vulnerability by issuing that command with specific parameters. A successful exploit could allow the attacker to overwrite the content of any arbitrary file that resides on the underlying host file system.
References
psirt@cisco.comhttps://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-arbfile-FUxskKDEVendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-arbfile-FUxskKDEVendor Advisory
Impacted products
Vendor Product Version
cisco ios_xe 16.11.1
cisco ios_xe 16.11.1a
cisco ios_xe 16.11.1b
cisco ios_xe 16.11.1c
cisco ios_xe 16.11.1s
cisco ios_xe 16.11.2
cisco ios_xe 16.12.1
cisco ios_xe 16.12.1a
cisco ios_xe 16.12.1c
cisco ios_xe 16.12.1s
cisco ios_xe 16.12.1t
cisco ios_xe 16.12.1w
cisco ios_xe 16.12.1x
cisco ios_xe 16.12.1y
cisco ios_xe 16.12.1z
cisco ios_xe 16.12.1za
cisco ios_xe 16.12.2
cisco ios_xe 16.12.2a
cisco ios_xe 16.12.2s
cisco ios_xe 16.12.2t
cisco ios_xe 16.12.3
cisco ios_xe 16.12.3a
cisco ios_xe 16.12.3s
cisco ios_xe 17.2.1
cisco ios_xe 17.2.1a
cisco ios_xe 17.2.1r
cisco ios_xe 17.2.1v
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "Cisco IOS XE Software",
          "vendor": "Cisco",
          "versions": [
            {
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              "version": "n/a"
            }
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        }
      ],
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    }
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability in the CLI of Cisco IOS XE SD-WAN Software could allow an authenticated, local attacker to overwrite arbitrary files in the underlying file system. This vulnerability is due to insufficient validation of the parameters of a specific CLI command. An attacker could exploit this vulnerability by issuing that command with specific parameters. A successful exploit could allow the attacker to overwrite the content of any arbitrary file that resides on the underlying host file system."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad en la CLI del Software Cisco IOS XE SD-WAN, podr\u00eda permitir a un atacante local autenticado sobrescribir archivos arbitrarios en el sistema de archivos subyacente.\u0026#xa0;Esta vulnerabilidad es debido a una comprobaci\u00f3n insuficiente de los par\u00e1metros de un comando de CLI espec\u00edfico.\u0026#xa0;Un atacante podr\u00eda explotar esta vulnerabilidad al emitir ese comando con par\u00e1metros espec\u00edficos.\u0026#xa0;Una explotaci\u00f3n con \u00e9xito podr\u00eda permitir al atacante sobrescribir el contenido de cualquier archivo arbitrario que resida en el sistema de archivos del host subyacente"
    }
  ],
  "id": "CVE-2021-1434",
  "lastModified": "2026-06-17T03:31:46.243",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
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          "accessVector": "LOCAL",
          "authentication": "NONE",
          "availabilityImpact": "COMPLETE",
          "baseScore": 6.6,
          "confidentialityImpact": "NONE",
          "integrityImpact": "COMPLETE",
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          "baseScore": 4.4,
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            {
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          "role": "CISA Coordinator",
          "timestamp": "2024-11-08T20:48:04.534219Z",
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      "tags": [
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      ],
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  ]
}



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