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CVE-2021-20017

Estado: ModificadaAlta (8.8)—

A post-authenticated command injection vulnerability in SonicWall SMA100 allows an authenticated attacker to execute OS commands as a 'nobody' user. This vulnerability impacts SMA100 version 10.2.0.5 and earlier.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Sonicwall — Sma100 Firmware

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2021-20017",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 9,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:S/C:C/I:C/A:C",
          "authentication": "SINGLE",
          "integrityImpact": "COMPLETE",
          "accessComplexity": "LOW",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "COMPLETE"
        },
        "acInsufInfo": false,
        "impactScore": 10,
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        "obtainAllPrivilege": false,
        "exploitabilityScore": 8,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
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          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
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  },
  "affected": [
    {
      "source": "PSIRT@sonicwall.com",
      "affectedData": [
        {
          "vendor": "SonicWall",
          "product": "SMA100",
          "versions": [
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              "status": "affected",
              "version": "10.2.0.5 and earlier"
            }
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  "published": "2021-03-13T02:15:12.563",
  "references": [
    {
      "url": "https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0004",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "PSIRT@sonicwall.com"
    },
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      "url": "https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0004",
      "tags": [
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "type": "Secondary",
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      "description": [
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      "description": [
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          "value": "CWE-78"
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  ],
  "descriptions": [
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      "lang": "en",
      "value": "A post-authenticated command injection vulnerability in SonicWall SMA100 allows an authenticated attacker to execute OS commands as a 'nobody' user. This vulnerability impacts SMA100 version 10.2.0.5 and earlier."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad de inyección de comandos posterior a la autenticación en SonicWall SMA100, permite a un atacante autenticado ejecutar comandos del Sistema Operativo como un usuario \"nobody\". Esta vulnerabilidad afecta a SMA100 versiones 10.2.0.5 y anteriores"
    }
  ],
  "lastModified": "2026-06-17T03:33:09.013",
  "configurations": [
    {
      "nodes": [
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          "cpeMatch": [
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