Yisaitong Document System UploadFileManagerService File Read Scanner

The Yisaitong Document Management System is widely used by organizations seeking efficient document storage and management solutions. It supports large workloads and a range of document types, facilitating rapid access and organization of files. Educational institutions, corporations, and public administration units frequently utilize this system for centralized document management. Key features include granular user permissions, version control, and secure access options. Developed to address the complex needs of document archiving, Yisaitong's system ensures easy accessibility and robust organization. However, regular reviews of its security posture are necessary to prevent exploitation through vulnerabilities.

The Arbitrary File Read vulnerability allows unauthorized users to access sensitive files on the server without proper authentication. Attackers exploit this flaw through specific requests to the vulnerable endpoints, bypassing existing access controls. This deficiency in the security mechanism can lead to significant risks, such as the exposure of confidential information. The vulnerability is particularly concerning as it does not restrict external requests to specific directories or filenames. Thus, when unmitigated, malicious actors can explore and extract files from servers with impunity. Organizations should prioritize addressing such vulnerabilities to safeguard their data integrity.

Technical details of the vulnerability reveal that the UploadFileManagerService interface allows requests with crafted parameters that lead to arbitrary file reading. Specifically, the endpoint permits the manipulation of file paths in a manner that circumvents directory access restrictions. The affected parameter in the POST request is 'filePath', which attackers can shape to point to sensitive local files. The vulnerability responds with server files when valid 'filePath' and matching commands are provided. Such vulnerabilities are critical, especially in environments with sensitive data like configuration files or user credentials.

Exploitation of this Arbitrary File Read vulnerability can result in unauthorized access to sensitive data. Malicious individuals could extract internal documents, configuration settings, or even credentials that allow further penetration into the network. Companies reliant on document management systems for storing proprietary data face increased risks of intellectual property theft. Additionally, regulatory compliance could be jeopardized due to breaches in data security policies. Ultimately, this exposure may lead to both financial loss and reputational damage if not addressed promptly.