74cms Unrestricted File Upload Scanner

74cms is a content management system utilized by organizations to manage web content with ease. It is popular in sectors needing a tool to publish and manage information on their websites without extensive technical knowledge. The platform supports features for job posting, recruitment, and information management, making it suitable for job portals and similar online services. Designed for ease of use, 74cms allows non-technical users to administer web content, facilitating communication and functionality for businesses. Its open-source nature enables extensive customization, making it adaptable for various organizational needs. The CMS is favored by smaller businesses and community-based organizations seeking web solutions.

Unrestricted File Upload vulnerabilities occur when a web application does not enforce appropriate restrictions on the type or size of files uploaded by users. This vulnerability can allow malicious users to upload harmful files, enabling them to execute unwanted actions on the server. It often arises due to lack of validation for file extensions or content, allowing potentially destructive operations. Attackers can exploit this flaw to upload scripts that lead to server compromises, data breaches, or other malicious activities. Such vulnerabilities are critical in shared hosting environments where server control is decentralized. Affected organizations are at risk for severe security incidents.

The file upload functionality on the 74cms frontend does not restrict file types adequately, permitting executable files like scripts or code to be uploaded by an attacker. This inadequacy lies in improper validation mechanisms that fail to block potentially dangerous file formats. The vulnerable endpoint allows users to upload files without stringent checks, making the system susceptible to arbitrary code execution. Attackers may use this flaw to bypass security controls by manipulating file extensions or uploading hidden content within files. This can include embedding PHP or HTML content in image files to evade detection. The system's weak handling of upload directories exacerbates the issue, leading to execution of unauthorized scripts.

An exploited unrestricted file upload vulnerability can lead to several severe security risks. An attacker could upload malicious scripts allowing remote code execution, leading to total control over the server. Unauthorized system changes could occur, such as altering settings or removing crucial data. If sensitive information is stored or processed via the application, it could be compromised or manipulated by the hacker. The vulnerability could further be used to install malware or launch further attacks on internal systems. Once accessed, the affected server might be used as a pivot point for attacks on other systems or networks. Continuous exploitation could result in downtime, impacting service availability and causing reputational damage.

REFERENCES

• http://www.74cms.com/download/index.html