CVE-2014-8739 Scanner

WordPress Sexy Contact Form is a popular plugin used to create contact forms on WordPress websites. It is primarily utilized by website owners and administrators for collecting user information and feedback. This plugin offers customizable form fields and layouts, enhancing the interaction between site visitors and webmasters. It is embedded into websites through a user-friendly interface, allowing easy form creation without coding skills. However, the plugin's security is critical as it processes user-submitted data, making it susceptible to exploitation if not properly configured. Maintaining the plugin's security integrity is essential for preventing unauthorized access and data breaches.

The vulnerability identified in the WordPress Sexy Contact Form plugin is an Unrestricted File Upload flaw. This issue allows remote attackers to upload any file type, particularly malicious PHP files, to the server. The uploaded files can execute arbitrary code on the hosting server, posing severe security risks. The exploitability of this vulnerability is facilitated through a lack of proper validation and sanitization of files being uploaded. Without restrictions, attackers can easily bypass security measures, leading to potential full control over the affected server. It is crucial to address this vulnerability to prevent malicious activities.

The vulnerability details reveal technical aspects such as the vulnerable endpoint in the server/php/UploadHandler.php file. Attackers exploit this by submitting crafted POST requests to the file upload interface. The file parameter is manipulated to bypass any elementary checks, enabling PHP files to execute on the server. The vulnerable parameter typically involves the file name or type, which, if not adequately filtered, leads to successful exploitation. The plugin, by default, permits files to be uploaded to a specific location without scrutinizing the extension or content type. This flaw provides a path for attackers to introduce harmful scripts that can be executed directly on the server.

When exploited, the unrestricted file upload vulnerability could have severe consequences. Malicious actors might achieve remote code execution, resulting in data compromise or server hijacking. The server could be utilized as a platform for further attacks, including distributing malware or perpetrating denial-of-service attacks against other targets. This also places sensitive user information at risk of exposure or theft. Additionally, search engine reputation and legal implications might arise due to infected hosts sending spam or illegal content. Therefore, proactive measures are critical to mitigate these potential impacts.

REFERENCES

• https://nvd.nist.gov/vuln/detail/CVE-2014-8739
• https://www.exploit-db.com/exploits/35057
• https://www.exploit-db.com/exploits/36811
• http://www.openwall.com/lists/oss-security/2014/11/11/4
• http://www.openwall.com/lists/oss-security/2014/11/11/5