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Customising Web Application Security: A Comprehensive Guide

Explore the benefits and challenges of customised security implementations for web applications. Learn about standardised solutions, advantages, disadvantages, and applicability. Enhance your understanding of fine-grain control and independence in security setups to ensure robust protection.

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Customising Web Application Security: A Comprehensive Guide

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  1. Customising Web Application Security Richard Wilson University of Melbourne, Australia Daniel Lowes University of Pretoria, South Africa

  2. Structure • What’s the problem? • Security on the Web • Custom implementations • Disadvantages • Advantages • Applicability

  3. What’s the problem? • Too many web applications reinvent the wheel • Limit applicability to a particular business / application / domain • Ignores benefits of standard(ised) solutions • Short-sighted development • Little thought of integration • No planning for extendibility

  4. Security on the Web • Two ways of implementing security: • Framework / middleware based • “Custom” • Framework • “Building Secure ASP.NET Web Applications” • .NET Roles • Principal Permission Demands • Declarative Checks

  5. What is a “custom” setup? • Independent of application framework • Eg: Written in C#, runs on Windows, *nix (Mono) • Standard model • Proven approaches to common issues • Tested for correctness • Optimised for performance • A Pattern… • Not? • A random piece of downloaded code

  6. Popular Disadvantages • Can the pattern be trusted? • That’s why it needs to be a pattern • TIME and effort taken to set up • Specialist knowledge / training • Degree of expertise required • But, cf. 600 pages of framework guidelines • COST of development • Support? Bug fixes? Patches? • Have to maintain it ourselves

  7. Advantages • Fine-grain control • Impossible to implement per-entity control in any existing framework • Choice of implementation – ACLs, capabilities • Independence • Less reliance on external vendor’s interfaces • Less maintenance • Flexible • Adapt to specific needs • Faster, easier to maintain, cheaper

  8. Does everyone need it? • There are always trade-offs in software engineering • A custom implementation will take more development time (though not as much as you might think) • The higher degree of control may not even be required • In which case: frameworks are the way

  9. Does anyone need it? • Implementing fine-grain security control in current frameworks is messy • Specific to particular applications, thus hard to generalise an implementation • But, the pattern can be applied across many domains • More comprehensive security = less headaches, less expenditure, less chaos

  10. In conclusion… • Software engineers like patterns… • Web application designers like security… • Managers want everything to be cheaper and faster… • Sound familiar? • A standardised, customised security model is an intersection of these three http://www.sagamedev.co.za http://sourceforge.net/projects/silvernode

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