Dynamic CSP Headers for Multi-Domain Web Application Security
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Solution Overview
Problem
Existing CSP management systems are inefficient and difficult to maintain, especially in enterprises with multiple web applications, leading to performance issues and increased vulnerability due to large CSP header sizes and manual updates required for domain changes.
Innovation Solution
A centralized CSP management system that employs dynamic source values in CSP definitions, generating headers based on the domain of the requested web application, reducing header size and enabling efficient management and violation reporting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If static source values are used in CSP definitions for multiple web applications, then security policy consistency is maintained, but header size increases and maintenance becomes difficult
Solution Approach 1:
The patent introduces dynamic source values that automatically adapt based on the requested web application's domain. Instead of using static source values that remain fixed, the CSP definition now dynamically generates appropriate source values at runtime, allowing the same CSP definition to serve multiple web applications with different domains without increasing header size.
Solution Approach 2:
The patent changes the parameter state of source values from static to dynamic. By using placeholders like {domain} that are replaced with actual domain values when generating CSP headers, the system maintains security consistency while adapting to different applications, thereby avoiding the need to include all possible source values in the header.
2Reliability
If manual updates are performed for domain changes in CSP definitions, then security policies can be updated, but productivity decreases and errors increase
Solution Approach 1:
The patent enables CSP definitions to self-adapt to domain changes through dynamic source values. Instead of requiring manual updates when domains change, the system automatically generates the correct source values by replacing placeholders with the actual domain of the requested web application, eliminating manual intervention and reducing errors.
Solution Approach 2:
The patent performs preliminary setup by defining CSP definitions with placeholders for dynamic values. This preliminary configuration allows the system to automatically handle future domain changes without manual intervention, as the placeholder replacement mechanism is already in place to generate correct CSP headers dynamically.
3Reliability
If CSP definitions include all possible source values for multiple applications, then comprehensive security coverage is achieved, but computing resources are wasted and performance decreases
Solution Approach 1:
The patent uses dynamic source values that are generated at runtime based on the specific web application being requested. This dynamic approach ensures comprehensive security coverage by tailoring the CSP header to each application's specific domain, while avoiding the waste of including all possible source values for all applications in every header.
Solution Approach 2:
The patent applies local quality by customizing the CSP header content for each specific web application domain. Instead of using a universal set of source values for all applications, the system generates domain-specific source values, ensuring appropriate security coverage for each application while minimizing unnecessary data transmission and processing.
Data Source
AI summary
Systems and methods dynamically generate content security policy (CSP) headers using CSP definitions having dynamic source values. When a request for a web application is received, a CSP definition corresponding to the web application and having a dynamic source value is retrieved from a repository of CSP definitions. A CSP header is generated based on the CSP definition. The CSP header includes a source value dynamically generated based on the dynamic source value and a domain associated with the requested web application. The CSP header is provided as a response header for the requested web application.