GitLab-based DevSecOps demonstrator

by PierrickPochelu 1 month ago

GNU/Linux • xterm-256color • bash 6 views

GitLab repo: https://gitlab.seanergys.fz-juelich.de/pochelu1/devsecops_demonstrator

CI/CD-based (.gitlab-ci.yml file) security pipeline. For testing purpose, two example applications are used:

A Python web service implemented with Flask.
A C application containing deliberate security flaws.

The pipeline follows a defense-in-depth approach across three phases:

Development Security: secret detection (GitLab Secret Detection, KICS, Semgrep), SAST (Semgrep, KICS, GCC Static Analyzer), DAST (OWASP ZAP), sanitizer-based testing (ASan, UBSan), and fuzzing (AFL++).
Software Supply Chain Security: artifact signing and verification (OpenSSL, Cosign), container image scanning (Trivy), and immutable image pinning through SHA256 digests.
Runtime Security: testing of WAF protection (ModSecurity + OWASP CRS), RASP protection (PyRASP), combined WAF+RASP deployments, and C binary hardening through modern GCC security mitigations.

The effectiveness of the controls is validated using:

simulated attacks to evaluate detection and blocking capabilities (false negatives)
and legitimate use cases to verify that security controls do not incorrectly block normal behavior (false positives)

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