标题: WordPress Front End Upload v0.5.4.4 Arbitrary PHP File Upload Vulnerability
作者: Chris Kellum
主页: http://mondaybynoon.com/
软件地址: http://downloads.wordpress.org/plugin/front-end-upload.0.5.4.4.zip
影响版本: 0.5.4.4
 
 
缺陷分析
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Plugin does not properly filter filetypes, which allows for the upload of filetypes in the following format:
 
     filename.php.jpg
 
Vulnerable hosts will serve such files as a php file, allowing for malicious files to be uploaded and executed.
 
In creating the uploads folder for this plugin, the code utilizes uniqid to add a unique string to the upload folder name in order to better hide it from direct access.
 
Example:
 
     www.2cto.com /wp-content/uploads/feu_9fc12558ac71e6995808cfc590207e87/
 
However, many WordPress installations allow direct access to the /wp-content/uploads/ folder, so simply look for a folder name beginning with 'feu_' to locate your upload.