Revealing the Weaknesses of File Sharing System on Cloud Storages

TL;DR

This paper analyzes security vulnerabilities in file sharing systems of three Chinese cloud storage providers, revealing weaknesses and suggesting countermeasures to enhance security without compromising quality.

Contribution

It provides a detailed security analysis of Baidu, Weiyun, and Kanbox cloud storage services, identifying specific vulnerabilities and proposing improvements.

Findings

Identified security weaknesses in Baidu, Weiyun, and Kanbox.

Revealed vulnerabilities that compromise file sharing security.

Suggested countermeasures to improve security in cloud storage.

Abstract

Cloud storage provides the simpler way to share the files privately and publicly. A good Cloud Storage Provider (SCP) is not only measured by the access speed or file size that can be shared to others, but also regarding the security issues in file sharing itself. In this paper, we analyze the security of file sharing in 3 Chinese CSPs, which are: Baidu, Weiyun and Kanbox. Those CSPs have their own vulnerabilities that successfully revealed. We also provide some suggestions to countermeasure the weaknesses so that they can maintain the quality while improving the security.