CVE-2014-8739: Unrestricted file upload vulnerability in jQuery File Upload Plugin
Summary
CVE-2014-8739: jQuery File Upload Plugin Unrestricted file upload vulnerability. Affects blueimp/jquery-file-upload versions 6.4.4. No fix is published. How to fix ↓
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Background
The jQuery File Upload Plugin is a popular plugin for jQuery that allows users to upload files to a server. It is commonly used in web applications and content management systems. The vulnerability exists in the server/php/UploadHandler.php file of the plugin. This vulnerability allows remote attackers to upload arbitrary PHP files and execute arbitrary code on the server. The vulnerability was discovered in October 2014 and has been exploited in the wild.
Vulnerability Detail
The vulnerability in the jQuery File Upload Plugin allows remote attackers to upload PHP files with a PHP extension and execute arbitrary code on the server. This can lead to various security issues, including remote code execution, data breaches, and unauthorized access to sensitive information. The vulnerability is caused by a lack of proper file type validation and input sanitization in the UploadHandler.php file. Attackers can exploit this vulnerability by uploading a malicious PHP file and accessing it directly through a request to the files/ directory.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
If updating the jQuery File Upload Plugin is not immediately possible, a temporary workaround is to disable file uploads or restrict file uploads to specific file types in the server configuration. This can help prevent the upload of malicious PHP files and reduce the risk of exploitation.
Conclusion
The jQuery File Upload Plugin is vulnerable to an unrestricted file upload vulnerability, allowing remote attackers to execute arbitrary code on the server. It is important to update to a patched version of the plugin and implement proper file type validation and input sanitization to mitigate the risk of exploitation. For further support on vulnerability remediation, you can contact DevNack.com.
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FAQ
This vulnerability allows remote attackers to execute arbitrary code on the server, which can lead to various security issues such as remote code execution, data breaches, and unauthorized access to sensitive information.
This vulnerability was discovered in October 2014 and has been exploited in the wild. The exact details of the discovery are not provided in the vulnerability report.
The vulnerability is reported in version 6.4.4 of the jQuery File Upload Plugin. It is recommended to update to a patched version of the plugin to mitigate the risk of exploitation.
Yes, it is recommended to update to a patched version of the jQuery File Upload Plugin. The latest version should include the necessary fixes to prevent the upload of malicious PHP files.
To protect your application, it is important to keep all software and plugins up to date. Additionally, you should implement proper file type validation and input sanitization in your file upload functionality to prevent the upload of malicious files.
