CNVD-2013-06167 Scanner

WordPress is a widely used blogging platform developed by the WordPress Software Foundation, utilizing PHP as its primary programming language. It's a versatile platform, allowing the setup of personal blogging websites on servers that support PHP and MySQL. The FileManager plugin within WordPress expands this functionality by enabling users to change, delete, organize, and upload files seamlessly. Due to its popularity and adaptability, WordPress and its associated plugins, such as wp-FileManager, are integral to managing content effectively on millions of sites globally. However, these plugins require regular updates to maintain security and functionality.

An Arbitrary File Download vulnerability allows unauthorized retrieval of files from the server where WordPress and the vulnerable plugin are hosted. This vulnerability can be devastating as it potentially exposes sensitive files within the server environment. Exploiting such vulnerabilities could lead to unauthorized access to sensitive configuration files or user data. Attackers can target known weak points in the plugin to achieve their objectives. It’s essential for administrators to understand this vulnerability to mitigate possible security risks.

Technical details of the vulnerability involve the exploitation of the 'path' parameter handling in the plugin. Typically accessible via crafted URLs, attackers leverage directory traversal techniques by injecting traversal sequences like '../' into parameters, allowing them to access files outside of the webroot. A vulnerable endpoint example is the '/wp-content/plugins/wp-filemanager/incl/libfile.php' file, where improper parameter validation allows such attacks. Ensuring proper sanitation and validation of input parameters, especially those involving file paths, is crucial in preventing these exploits.

If exploited, the arbitrary file download vulnerability could expose sensitive configuration files, such as wp-config.php, containing database credentials and other critical information. This could allow attackers to escalate their access within the server, potentially leading to full website takeover or data breaches. Immediate steps should be taken to mitigate this risk, including applying security patches and employing input validation techniques.

REFERENCES

• http://wordpress.org/extend/plugins/wp-filemanager/