Web Application Proxy Access Control for Zero-Trust Remote Work
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Solution Overview
Problem
Existing security systems fail to effectively prevent unauthorized access from internal users due to reliance on external network security equipment, leading to increased intrusion accidents and data leakage in remote work environments.
Innovation Solution
Implement a zero-trust-based security architecture using a web application proxy that confirms user access authority through a packet processing module, service control module, and external policy management module to allow authorized access and block unauthorized access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If conventional firewall-based security equipment is used to block external access, then external network security is improved, but internal user access control and data leakage prevention capability deteriorates
Solution Approach 1:
The patent segments the security control function into multiple independent modules: packet processing module for traffic collection, service control module for access decision-making, and external policy management module for policy coordination. This segmentation allows each module to specialize in specific security functions, improving both external security blocking and internal access control reliability simultaneously
Solution Approach 2:
The web application proxy acts as an intermediary between internal users and web services. It intercepts all access requests, verifies user identification information against access control policies, and mediates the connection to web services. This intermediary mechanism enables fine-grained access control for internal users while maintaining external security through the same proxy infrastructure
2Adaptability or versatility
If VPN usage rate increases to enable remote work, then work flexibility is improved, but intrusion accident occurrence rate increases
Solution Approach 1:
The system performs preliminary verification of user identification information and access authority before allowing any VPN access to internal web services. The service control module checks identification information against access control policies in advance, blocking unauthorized access attempts before they can reach internal resources. This preliminary action reduces intrusion accidents while maintaining remote work flexibility for authorized users
Solution Approach 2:
The external policy management module continuously receives feedback about access control policies from external integrated policy management servers and updates the access control database accordingly. This feedback mechanism ensures that access rights are dynamically adjusted based on current security requirements, allowing the system to adapt to changing security threats while maintaining work flexibility
3Object-affected harmful factors
If access control policy is strictly enforced for all users, then network security is improved, but user access efficiency and usability deteriorates
Solution Approach 1:
The patent applies partial access control by allowing authorized users to access web services after successful authentication, while strictly blocking unauthorized access. The service control module selectively enforces access control policies only on traffic that requires verification, rather than blocking all access uniformly. This partial action maintains security for unauthorized users while preserving access efficiency for authorized users
Solution Approach 2:
The system implements self-service authentication where users automatically provide their identification information when accessing web services through the proxy. The service control module automatically verifies identification information against the access control database without requiring manual intervention or complex authentication procedures. This self-service mechanism maintains strong access control while minimizing user friction and preserving access efficiency
Data Source
AI summary
An apparatus for controlling and blocking user access using a web application proxy includes: a web server system; and a web application proxy installed in the web server system and configured to determine whether to provide the user with a web service by confirming access authority of a user using an external network, wherein the web application proxy includes: a packet processing module configured to collect and analyze request packets; a service control module configured to control the user access to the web service by extracting identification information of the user from the packets to confirm whether the user of the extracted identification information has the access authority to the web service; and an external policy management module configured to collect and manage an updated access control policy of the user and an updated policy for the web service by communicating with an external integrated policy management server.