aikcms Unrestricted File Upload Scanner

The aikcms is a content management system used widely for managing digital content and web applications. It's popular among small to medium-sized businesses for creating and managing their web presence. aikcms provides functionalities such as file uploads, page creation, and content editing, which makes it versatile for various use cases. Businesses often use it to manage images, documents, and other digital assets in a unified manner. Due to its ease of use and flexibility, it is favored by those who require comprehensive content management solutions. However, its popularity also makes it a target for security vulnerabilities.

The Unrestricted File Upload vulnerability in aikcms allows attackers to upload malicious files, thereby executing arbitrary code on the server. The vulnerability exploits inadequacies in the file upload feature that doesn't strictly limit file types and extensions. By uploading files with dangerous extensions like PHP or ASP, attackers can compromise the server. This weakness can lead to unauthorized access and control over the server environment by external attackers. Ensuring that the file upload feature is secure is crucial in preventing potential breaches.

Technically, the vulnerability is located in the file upload function of the aikcms system, specifically in the "system_qrcode.php" script. This script allows the uploading of files without adequate validation of the file type, extension, or content. Attackers can craft a specially designed POST request to upload a file containing malicious script, allowing code execution on the server. The vulnerable endpoint is capable of processing a wide range of file types without proper restriction, making it susceptible to exploitation. Ensuring proper file type verification and restricting executable file uploads can mitigate this issue.

Exploiting this vulnerability could allow malicious users to completely control the server, execute arbitrary commands, and access sensitive data. It can lead to unauthorized file reading, writing, and deletion. In severe cases, attackers may establish persistent backdoors or use the server to launch further attacks against other systems. The consequences of exploitation include data theft, service disruption, and reputational damage to the organization using aikcms.

REFERENCES

• http://www.aikcms.com/