Archive for January, 2011

Domain-Driven Security

by Rohit Sethi and Yuk Fai Chan

The Problem

We have a pervasive problem in our field. We lump two disparate classes of security weakness together. Some articulate the difference as “business logic” vs. “technical” or “semantic” vs. “syntactic”. I’d like to build on a familiar term to developers: “domain”. Each kind of software weakness is domain-specific or domain-agnostic (or both). Making this distinction is critical. We currently try to fix both sets of weaknesses with the same sets of tools, processes, and expertise when in fact they need to be treated differently. Our current approaches to application security work well for domain-agnostic vulnerabilities, but we need domain experts to solve domain-specific problems.

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