Techniques for Bypassing File Upload Restrictions Discussed
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🗃️ Techniques for Bypassing File Upload Restrictions Explored. The article discusses methods to circumvent file upload restrictions in web applications, particularly for executing Client-Side Path Traversal (CSPT) attacks. It highlights how common validation techniques, such as MIME type checks and magic byte inspections, can be manipulated to allow JSON files to be uploaded as other file types, like PDFs or images. Specific strategies include embedding PDF headers within JSON structures and exploiting file size limits to bypass validation checks. The author emphasizes the importance of understanding these vulnerabilities for enhancing security measures and provides examples and resources for further exploration. The findings are part of a broader effort to improve security practices in software development.
