| name | trivy-offline-scanning |
| description | Use Trivy for offline vulnerability scanning of dependency files like package-lock.json. |
Trivy Offline Vulnerability Scanning
Trivy can be used to scan dependency files (e.g. package-lock.json) offline without updating its database or querying the network for dependency analysis.
Prerequisites
- Trivy installed.
- Vulnerability DB present in the Trivy cache directory.
Usage
To scan a file like package-lock.json and output the results as a JSON file, use the following command:
trivy fs --skip-db-update --offline-scan --format json --output trivy-report.json <path-to-file>
Options Explained:
fs: Scan a filesystem path or a specific file.
--skip-db-update: Prevents Trivy from attempting to update the vulnerability database, crucial for offline scanning.
--offline-scan: Prevents Trivy from issuing API requests to identify dependencies.
--format json: Formats the output as JSON for easier programmatic parsing.
--output trivy-report.json: Saves the output to the specified file.
This approach ensures zero network calls during the analysis of dependency manifests.