FKIE_CVE-2010-20103

Vulnerability from fkie_nvd - Published: 2025-08-20 16:15 - Updated: 2025-09-24 17:02
Severity ?
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
A malicious backdoor was embedded in the official ProFTPD 1.3.3c source tarball distributed between November 28 and December 2, 2010. The backdoor implements a hidden FTP command trigger that, when invoked, causes the server to execute arbitrary shell commands with root privileges. This allows remote, unauthenticated attackers to run any OS command on the FTP server host.
References
disclosure@vulncheck.comhttp://www.proftpd.org/Product
disclosure@vulncheck.comhttps://advisories.checkpoint.com/defense/advisories/public/2011/cpai-2010-151.html/Third Party Advisory
disclosure@vulncheck.comhttps://github.com/proftpd/proftpdProduct
disclosure@vulncheck.comhttps://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/unix/ftp/proftpd_133c_backdoor.rbExploit, Third Party Advisory
disclosure@vulncheck.comhttps://web.archive.org/web/20111107212129/http://rsync.proftpd.org/Release Notes
disclosure@vulncheck.comhttps://www.exploit-db.com/exploits/15662Exploit, VDB Entry
disclosure@vulncheck.comhttps://www.exploit-db.com/exploits/16921Exploit, VDB Entry
disclosure@vulncheck.comhttps://www.vulncheck.com/advisories/proftpd-backdoor-command-executionThird Party Advisory
134c704f-9b21-4f2e-91b3-4a467353bcc0https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/unix/ftp/proftpd_133c_backdoor.rbExploit, Third Party Advisory
134c704f-9b21-4f2e-91b3-4a467353bcc0https://www.exploit-db.com/exploits/15662Exploit, VDB Entry
134c704f-9b21-4f2e-91b3-4a467353bcc0https://www.exploit-db.com/exploits/16921Exploit, VDB Entry
Impacted products
Vendor Product Version
proftpd proftpd 1.3.3
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:proftpd:proftpd:1.3.3:c:*:*:*:*:*:*",
              "matchCriteriaId": "15837EC9-F392-4ACD-A292-7ECD413D54BA",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A malicious backdoor was embedded in the official ProFTPD 1.3.3c source tarball distributed between November 28 and December 2, 2010. The backdoor implements a hidden FTP command trigger that, when invoked, causes the server to execute arbitrary shell commands with root privileges. This allows remote, unauthenticated attackers to run any OS command on the FTP server host."
    },
    {
      "lang": "es",
      "value": "Una puerta trasera maliciosa se integr\u00f3 en official ProFTPD 1.3.3c source tarball, distribuido entre el 28 de noviembre y el 2 de diciembre de 2010. Esta puerta trasera implementa un disparador de comandos FTP oculto que, al ser invocado, provoca que el servidor ejecute comandos de shell arbitrarios con privilegios de root. Esto permite a atacantes remotos no autenticados ejecutar cualquier comando del sistema operativo en el host del servidor FTP."
    }
  ],
  "id": "CVE-2010-20103",
  "lastModified": "2025-09-24T17:02:12.460",
  "metrics": {
    "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"
      }
    ],
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 9.3,
          "baseSeverity": "CRITICAL",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "NONE",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "userInteraction": "NONE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "version": "4.0",
          "vulnAvailabilityImpact": "HIGH",
          "vulnConfidentialityImpact": "HIGH",
          "vulnIntegrityImpact": "HIGH",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "disclosure@vulncheck.com",
        "type": "Secondary"
      }
    ]
  },
  "published": "2025-08-20T16:15:34.137",
  "references": [
    {
      "source": "disclosure@vulncheck.com",
      "tags": [
        "Product"
      ],
      "url": "http://www.proftpd.org/"
    },
    {
      "source": "disclosure@vulncheck.com",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://advisories.checkpoint.com/defense/advisories/public/2011/cpai-2010-151.html/"
    },
    {
      "source": "disclosure@vulncheck.com",
      "tags": [
        "Product"
      ],
      "url": "https://github.com/proftpd/proftpd"
    },
    {
      "source": "disclosure@vulncheck.com",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/unix/ftp/proftpd_133c_backdoor.rb"
    },
    {
      "source": "disclosure@vulncheck.com",
      "tags": [
        "Release Notes"
      ],
      "url": "https://web.archive.org/web/20111107212129/http://rsync.proftpd.org/"
    },
    {
      "source": "disclosure@vulncheck.com",
      "tags": [
        "Exploit",
        "VDB Entry"
      ],
      "url": "https://www.exploit-db.com/exploits/15662"
    },
    {
      "source": "disclosure@vulncheck.com",
      "tags": [
        "Exploit",
        "VDB Entry"
      ],
      "url": "https://www.exploit-db.com/exploits/16921"
    },
    {
      "source": "disclosure@vulncheck.com",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://www.vulncheck.com/advisories/proftpd-backdoor-command-execution"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/unix/ftp/proftpd_133c_backdoor.rb"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "tags": [
        "Exploit",
        "VDB Entry"
      ],
      "url": "https://www.exploit-db.com/exploits/15662"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "tags": [
        "Exploit",
        "VDB Entry"
      ],
      "url": "https://www.exploit-db.com/exploits/16921"
    }
  ],
  "sourceIdentifier": "disclosure@vulncheck.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-912"
        }
      ],
      "source": "disclosure@vulncheck.com",
      "type": "Secondary"
    }
  ]
}


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