Veiled in Trust: Software Supply Chain Attacks Explained

Software supply chain attacks focus on compromising the components, tools, and processes involved in building and delivering software rather than attacking the application directly. These attacks begin by targeting something upstream, such as open-source software, build systems, or CI/CD pipelines, allowing malicious code to propagate downstream under the guise of trusted dependencies or signed updates. Common types of these attacks include open source package attacks, build pipeline compromises, malicious maintainer takeovers, and abuse of over-permissioned third-party integrations. High-profile incidents, like the SolarWinds attack, highlight the critical need for visibility, prioritization, and enforcement within the pipeline to defend against these threats. Effective defense strategies involve maintaining a living inventory of dependencies through Software Bill of Materials (SBOMs), detecting malicious packages before they enter the build, hardening the build pipeline, controlling dependencies, and enforcing least privilege. Endor Labs conducts threat research and offers tools to detect and block malware within software supply chains, emphasizing the importance of proactive cyber supply chain risk management.

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