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FKIE_CVE-2018-20334

Vulnerability from fkie_nvd - Published: 2020-03-20 01:15 - Updated: 2026-06-17 01:52
Severity
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
An issue was discovered in ASUSWRT 3.0.0.4.384.20308. When processing the /start_apply.htm POST data, there is a command injection issue via shell metacharacters in the fb_email parameter. By using this issue, an attacker can control the router and get shell.
References
cve@mitre.orghttps://starlabs.sg/advisories/18-20334/Exploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://starlabs.sg/advisories/18-20334/Exploit, Third Party Advisory
Impacted products
Vendor Product Version
asus asuswrt 3.0.0.4.384.20308
asus gt-ac2900 -
asus gt-ac5300 -
asus gt-ax11000 -
asus rt-ac1200 -
asus rt-ac1200_v2 -
asus rt-ac1200g -
asus rt-ac1200ge -
asus rt-ac1750 -
asus rt-ac1750_b1 -
asus rt-ac1900p -
asus rt-ac3100 -
asus rt-ac3200 -
asus rt-ac51u -
asus rt-ac5300 -
asus rt-ac55u -
asus rt-ac56r -
asus rt-ac56s -
asus rt-ac56u -
asus rt-ac66r -
asus rt-ac66u -
asus rt-ac66u-b1 -
asus rt-ac66u_b1 -
asus rt-ac68p -
asus rt-ac68u -
asus rt-ac86u -
asus rt-ac87u -
asus rt-ac88u -
asus rt-acrh12 -
asus rt-acrh13 -
asus rt-ax3000 -
asus rt-ax56u -
asus rt-ax58u -
asus rt-ax88u -
asus rt-ax92u -
asus rt-g32 -
asus rt-n10\+d1 -
asus rt-n10e -
asus rt-n14u -
asus rt-n16 -
asus rt-n19 -
asus rt-n56r -
asus rt-n56u -
asus rt-n600 -
asus rt-n65u -
asus rt-n66r -
asus rt-n66u -
To clipboard 

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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "An issue was discovered in ASUSWRT 3.0.0.4.384.20308. When processing the /start_apply.htm POST data, there is a command injection issue via shell metacharacters in the fb_email parameter. By using this issue, an attacker can control the router and get shell."
    },
    {
      "lang": "es",
      "value": "Se detect\u00f3 un problema en ASUSWRT versi\u00f3n 3.0.0.4.384.20308. Al procesar los datos POST del archivo /start_apply.htm, se presenta un problema de inyecci\u00f3n de comandos por medio de metacaracteres de shell en el par\u00e1metro fb_email. Al usar este problema, un atacante puede controlar el enrutador y conseguir la shell."
    }
  ],
  "id": "CVE-2018-20334",
  "lastModified": "2026-06-17T01:52:38.510",
  "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"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 10.0,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "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"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2020-03-20T01:15:22.357",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://starlabs.sg/advisories/18-20334/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://starlabs.sg/advisories/18-20334/"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-78"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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