What’s in a Name? A Look at the Software Identification Ecosystem
Blog post from Endor Labs
Software identification plays a crucial role in managing software assets, version control, and vulnerability management, yet remains a fragmented field with no single identifier capable of meeting all requirements across diverse use cases. This complexity is highlighted by three primary formats: Common Platform Enumeration (CPE), which focuses on product-specific identification; Package URL (PURL), which targets third-party dependencies and is prevalent in open-source software ecosystems; and Software Identification Tags (SWID), which provide structured metadata for software products. Challenges arise from the need for timely availability and precision in software identifiers, as well as from the differing methodologies of inherent and defined identifiers—each with its own advantages and drawbacks. The Cybersecurity and Infrastructure Security Agency (CISA) discusses potential paths forward, including a mix of inherent and defined identifiers, centralized and distributed models, and the possibility of multiple identifier formats to ensure comprehensive coverage and correlation across datasets in the software ecosystem. The ongoing debate reflects the need for a more unified approach that can adapt to the growing complexity and security demands of modern software environments.
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