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Is It Safe to Share Your Files? An Empirical Security Analysis of Google Workspace

Published: 13 May 2024 Publication History
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  • Abstract

    The increasing demand for remote work and virtual interactions has heightened the usage of business collaboration platforms~(BCPs), with Google Workspace as a prominent example. These platforms enhance team collaboration by integrating Google Docs, Slides, Calendar, and feature-rich third-party applications (add-ons). However, such integration of multiple users and entities has inadvertently introduced new and complex attack surfaces, elevating security and privacy risks in resource management to unprecedented levels. In this study, we conduct a systematic study on the effectiveness of the cross-entity resource management in Google Workspace, the most popular BCP. Our study unveils the access control enforcement in real-world BCPs for the first time. Based on this, we formulate the attack surfaces inherent in BCPs and conduct a comprehensive assessment, pinpointing three vulnerability types leading to distinct attacks. An analysis of 4,732 marketplace add-ons reveals that approximately 70% are potentially vulnerable to these attacks. We propose robust countermeasures to improve BCP security, urging immediate action and setting a foundation for future research.

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      cover image ACM Conferences
      WWW '24: Proceedings of the ACM on Web Conference 2024
      May 2024
      4826 pages
      ISBN:9798400701719
      DOI:10.1145/3589334
      Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than the author(s) must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected].

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      Published: 13 May 2024

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      Author Tags

      1. Google workspace
      2. add-ons
      3. security vulnerabilities
      4. sharing

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      WWW '24: The ACM Web Conference 2024
      May 13 - 17, 2024
      Singapore, Singapore

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