{
  "id": "CVE-2008-2020",
  "sourceIdentifier": "cve@mitre.org",
  "published": "2008-04-30T01:07:00.000",
  "lastModified": "2018-10-11T20:38:49.687",
  "vulnStatus": "Modified",
  "descriptions": [
    {
      "lang": "en",
      "value": "The CAPTCHA implementation as used in (1) Francisco Burzi PHP-Nuke 7.0 and 8.1, (2) my123tkShop e-Commerce-Suite (aka 123tkShop) 0.9.1, (3) phpMyBitTorrent 1.2.2, (4) TorrentFlux 2.3, (5) e107 0.7.11, (6) WebZE 0.5.9, (7) Open Media Collectors Database (aka OpenDb) 1.5.0b4, and (8) Labgab 1.1 uses a code_bg.jpg background image and the PHP ImageString function in a way that produces an insufficient number of different images, which allows remote attackers to pass the CAPTCHA test via an automated attack using a table of all possible image checksums and their corresponding digit strings."
    },
    {
      "lang": "es",
      "value": "La implementaci\u00f3n CAPTCHA como se utiliza en (1) Francisco Burzi PHP-Nuke 7.0 y 8.1, (2) my123tkShop e-Commerce-Suite (tambi\u00e9n conocido como 123tkShop) 0.9.1, (3) phpMyBitTorrent 1.2.2, (4) TorrentFlux 2.3, (5) e107 0.7.11, (6) WebZE 0.5.9, (7) Open Media Collectors Database (tambi\u00e9n conocido como OpenDb) 1.5.0b4, y (8) Labgab 1.1; utiliza una imagen de fondo code_bg.jpg y la funci\u00f3n de PHP ImageString de una forma que no produce un n\u00famero suficiente de im\u00e1genes diferentes; esto permite a atacantes remotos pasar el test CAPTCHA mediante un ataque autom\u00e1tico utilizando una tabla con todas las sumas de validaci\u00f3n (checksum) de im\u00e1genes posibles y sus cadenas de d\u00edgitos correspondientes."
    }
  ],
  "metrics": {
    "cvssMetricV2": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "2.0",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
          "accessVector": "NETWORK",
          "accessComplexity": "MEDIUM",
          "authentication": "NONE",
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "availabilityImpact": "PARTIAL",
          "baseScore": 6.8
        },
        "baseSeverity": "MEDIUM",
        "exploitabilityScore": 8.6,
        "impactScore": 6.4,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-264"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
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  "references": [
    {
      "url": "http://securityreason.com/securityalert/3834",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.rooksecurity.com/blog/?p=6",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/archive/1/491127/100/0/threaded",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/bid/28877",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/42152",
      "source": "cve@mitre.org"
    }
  ]
}