Isolated Content Widget for Secure Privileged Data Access
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Solution Overview
Problem
Web applications often require access to sensitive user data, such as credit card numbers and photos, while users want to maintain security and prevent data exposure to unauthorized access or attacks.
Innovation Solution
Implementing a content widget system where privileged data access is isolated from the embedder process, allowing secure access and usage within a sandboxed browser environment, ensuring that sensitive data is protected from the embedding application.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If web applications are granted access to privileged data such as credit card numbers and personal contacts, then the functionality and features of the application are improved, but the security risk and exposure to attacks increase
Solution Approach 1:
The system segments the web application into two distinct components: an embedder process that provides the user interface and interaction logic, and a content widget process that handles privileged data access. This segmentation allows the application to maintain full functionality while isolating security-sensitive operations in a separate, controlled environment.
Solution Approach 2:
The content widget acts as an intermediary between the embedder and privileged data sources. The widget process receives requests from the embedder, accesses isolated data sources for credit card numbers, contacts, or photos, and returns only the necessary information without exposing the underlying data sources to the embedder. This mediator pattern enables functionality while maintaining security boundaries.
2Ease of operation
If web applications embed privileged web widgets that can access personal data, then the user experience and feature access are improved, but the risk of data exposure to attacks increases
Solution Approach 1:
The system separates the user-facing embedder from the data-accessing widget in distinct processes. The embedder maintains full interaction capabilities for good user experience, while the widget process in isolation handles data access, ensuring that even if the embedder is compromised, the privileged data remains protected.
Solution Approach 2:
The content widget process is granted specific local privileges to access particular data sources (credit card data, contacts, photos) that are isolated from the embedder. This localized access control allows the widget to perform necessary data operations while the embedder operates with limited permissions, balancing usability with security.
3Productivity
If the embedding application directly accesses privileged data sources, then the data access speed and efficiency are improved, but the security isolation and protection are reduced
Solution Approach 1:
The content widget serves as an efficient intermediary that maintains direct connections to isolated data sources while communicating with the embedder through defined interfaces. This architecture preserves fast data access performance because the widget has direct privileged access, while simultaneously maintaining security isolation because the embedder never directly touches the data sources.
Data Source
AI summary
A content widget is created for an embedder that executes in a renderer process of a computer system. The content widget is configured to execute in a process that is separate from the renderer process and access a first data source that is isolated from the embedder. The content widget is configured to provide a representation of at least a portion of data from the first data source, and receive a selection of a first item corresponding to the representation. In response to receiving the selection, the content widget may retrieve the first item from the first data source, and in response to retrieving the first item, provide the first item to the embedder. The content widget may have one or more permissions that the embedder does not have, or the embedder may have one or more permissions that the content widget does not have.