Securing the Modern Software Supply Chain with SBOM and Cosign
Executive Overview
Software supply chain attacks targeting open-source dependencies, CI/CD runners, and container registries have risen by over 300% in recent years.
Securing the build pipeline requires generating Software Bills of Materials (SBOM), cryptographically signing container images with Sigstore Cosign, and enforcing admission policies at the Kubernetes cluster level.
Key Takeaways
- Generate standardized CycloneDX and SPDX SBOM artifacts during build time.
- Sign container images keylessly with Sigstore Cosign and OIDC identity tokens.
- Enforce image signature verification using Kyverno / OPA admission webhooks.
1. Automated SBOM Generation and Vulnerability Scanning
Tools like Syft and Trivy scan build artifacts to generate an accurate inventory of every third-party package and dependency version used.
100%
Signed Images
Zero unsigned container images permitted in production Kubernetes clusters
0
Supply Chain Breaches
Proactive automated quarantine of vulnerable open-source dependencies
Conclusion & Strategic Next Steps
Embedding cryptographic trust and provenance verification into your CI/CD pipeline builds robust defense against modern software supply chain attacks.
Harden Your Software Supply Chain?
Connect with Harbour Stone Cyber's security engineers to implement automated SBOM generation and container signing.
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