CVE-2024-29272 Scanner

VvvebJs is a JavaScript-based tool widely used by developers and web designers for building modular and responsive web interfaces. Its user-friendly interface allows designers to customize web layouts without extensive coding, making it suitable for frontend developers who want to streamline their design process. Integrated into several Content Management Systems (CMS), VvvebJs aids in real-time visual editing, which increases productivity and efficiency. This flexibility and ease of use make it a popular choice among professionals aiming to enhance user experience with drag-and-drop capabilities. The tool is pivotal for developing new web applications with customized features. Nevertheless, attention to its security aspects is crucial due to its integration in various systems.

The Arbitrary File Upload vulnerability in VvvebJs allows malicious actors to upload any file type through vulnerable endpoints. This loophole can be exploited to execute unauthorized code on a server, leading to potential control over the affected system. Attackers utilize specific parameter entries, like sanitizeFileName, to bypass typical upload restrictions, posing a significant security risk. As such vulnerabilities enable execution of remote code, they provide a gateway for obtaining sensitive information. Unrestricted file uploads are particularly dangerous, as they compromise system integrity and data confidentiality. Effective mitigation procedures are necessary to protect systems relying on VvvebJs.

The vulnerable endpoint within the VvvebJs architecture is save.php, coupled with the sanitizeFileName parameter, which does not adequately sanitize incoming data. Attackers exploit this flaw by sending specially crafted payloads capable of bypassing security checks. Additionally, the POST method used for file submission facilitates this exploitation by processing and saving files without appropriate validation. Consequently, a successful attack can result in the unauthorized saving and execution of critical files. The exploitability of this vulnerability is heightened by the lack of prerequisites such as authentication and minimal attack complexity. Comprehensive understanding and efforts to secure endpoints are therefore critical in preventing potential exploits.

If successfully exploited, an arbitrary file upload vulnerability can have severe consequences. Attackers could upload malicious scripts, leading to remote code execution and unauthorized server actions. This unauthorized access could compromise sensitive user data stored in the application, potentially leading to data breaches. Furthermore, system outages and defacements are possible, affecting service availability and integrity. Mere execution of arbitrary files might establish a persistent backdoor for continuous access. The impacts stem far beyond immediate disruption, potentially facilitating larger scale cyber-intrusions.

REFERENCES

• https://github.com/awjkjflkwlekfdjs/CVE-2024-29272/
• https://github.com/givanz/VvvebJs/issues/343
• https://nvd.nist.gov/vuln/detail/CVE-2024-29272
• https://vuldb.com/?id.257680