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Snyk scanner reference for STO

Harness STO supports the following scan types for the following Snyk products:

  • Snyk Open Source — orchestratedScan and ingestionOnly
  • Snyk Code — ingestionOnly
  • Snyk Container — ingestionOnly
  • Snyk infrastructure as Code — ingestionOnly is in BETA

For complete end-to-end workflow descriptions, go to Run Snyk scans and ingest results.

Important notes for running Snyk scans in STO​

Docker-in-Docker requirements​

note

Docker-in-Docker is not required for ingestion workflows where the scan data has already been generated.

You need to include a Docker-in-Docker background service in your stage if either of these conditions apply:

  • You configured your scanner using a generic Security step rather than a scanner-specific template such as Aqua Trivy, Bandit, Mend, Snyk, etc.
  • You’re scanning a container image using an Orchestration or Extraction workflow.
Set up a Docker-in-Docker background step

  1. Go to the stage where you want to run the scan.

  2. In Overview, add the shared path /var/run.

  3. In Execution, do the following:

    1. Click Add Step and then choose Background.

    2. Configure the Background step as follows:

      1. Dependency Name = dind

      2. Container Registry = The Docker connector to download the DinD image. If you don't have one defined, go to Docker connector settings reference.

      3. Image = docker:dind

      4. Under Entry Point, add the following: dockerd

        In most cases, using dockerd is a faster and more secure way to set up the background step. For more information, go to the TLS section in the Docker quick reference.

        If the DinD service doesn't start with dockerd, clear the Entry Point field and then run the pipeline again. This starts the service with the default entry point.

      5. Under Optional Configuration, select the Privileged checkbox.

Configure the background step

Root access requirements​

You need to run the scan step with root access if either of the following apply:

  • You need to run a Docker-in-Docker background service. This is required in the following scenarios only:

    • You're using a generic Security step to run an Orchestrated or Extraction scan, rather than a scanner-specific step such as Aqua Trivy, Bandit, etc. (not required for Ingestion scans).

    • You're scanning a container image using an Orchestrated or Extraction scan (not required for Ingestion scans).

  • You need to add trusted certificates to your scan images at runtime.

note

You can set up your STO scan images and pipelines to run scans as non-root and establish trust for your own proxies using self-signed certificates. For more information, go to Configure STO to Download Images from a Private Registry.

For more information​

The following topics contain useful information for setting up scanner integrations in STO:

Snyk step configuration​

The recommended workflow is add a Snyk step to a Security Tests or CI Build stage and then configure it as described below. You can also configure scans programmatically by copying, pasting, and editing the YAML definition.

Scan​

Scan Mode​

This integration supports the following orchestration modes.

  • Orchestrated A fully-orchestrated scan. A Security step in the Harness pipeline orchestrates a scan and then normalizes and compresses the results.
  • Ingestion Ingestion scans are not orchestrated. The Security step ingest results from a previous scan (for a scan run in an previous step) and then normallizes and compresses the results.

Scan Configuration​

The predefined configuration to use for the scan. All scan steps have at least one configuration.

Target​

Type​

The target type to scan for vulnerabilities.

  • Repository Scan a codebase repo.

    In most cases, you specify the codebase using a code repo connector that connects to the Git account or repository where your code is stored. For information, go to Create and configure a codebase.

  • Container Image Scan the layers, libraries, and packages in a container image.

Name​

The Identifier that you want to assign to the target you’re scanning in the pipeline. Use a unique, descriptive name such as codebaseAlpha or jsmith/myalphaservice. Using descriptive target names will make it much easier to navigate your scan data in the STO UI.

Variant​

An identifier for a specific variant to scan, such as the branch name or image tag. This identifier is used to differentiate or group results for a target. Harness maintains a historical trend for each variant.

You can see the target name, type, and variant in the Test Targets UI:

Target name, type, and branch

Workspace (repository)​

The workspace path on the pod running the Security step. The workspace path is /harness by default.

You can override this if you want to scan only a subset of the workspace. For example, suppose the pipeline publishes artifacts to a subfolder /tmp/artifacts and you want to scan these artifacts only. In this case, you can specify the workspace path as /harness/tmp/artifacts.

Ingestion File​

The results data file to use when running an Ingestion scan.

Generally an Ingestion scan consists of a scan step (to generate the data file) and an ingestion step (to ingest the data file).

In addition to ingesting scan data in the external scanner's native format, STO steps can also ingest data in SARIF and Harness Custom JSON format.

For more information, go to Ingest Scan Results into an STO Pipeline.

Authentication​

Access Token (Orchestration scans)​

The access token to log in to the scanner. In most cases this is a password or an API key.

You should create a Harness text secret with your encrypted token and reference the secret using the format <+secrets.getValue("project.container-access-id")>. For more information, go to Add and Reference Text Secrets.

Log Level, CLI flags, and Fail on Severity​

Log Level​

The minimum severity of the messages you want to include in your scan logs. You can specify one of the following:

  • DEBUG
  • INFO
  • WARNING
  • ERROR

Fail on Severity​

Every Security step has a Fail on Severity setting. If the scan finds any vulnerability with the specified severity level or higher, the pipeline fails automatically. You can specify one of the following:

  • CRITICAL
  • HIGH
  • MEDIUM
  • LOW
  • INFO
  • NONE — Do not fail on severity

The YAML definition looks like this: fail_on_severity : critical # | high | medium | low | info | none

Additional Configuration​

In the Additional Configuration settings, you can use the following options:

Advanced settings​

In the Advanced settings, you can use the following options:

Security step settings for Snyk scans in STO (legacy)​

You can set up Snyk scans using a Security step: create a CI Build or Security Tests stage, add a Security step, and then add the setting:value pairs as specified below.

Target and variant​

The following settings are required for every Security step:

  • target_name A user-defined label for the code repository, container, application, or configuration to scan.
  • variant A user-defined label for the branch, tag, or other target variant to scan.
note

Make sure that you give unique, descriptive names for the target and variant. This makes navigating your scan results in the STO UI much easier.

You can see the target name, type, and variant in the Test Targets UI:

Target name, type, and branch

For more information, go to Targets, baselines, and variants in STO.

Snyk scan settings​

  • product_name = snyk:
  • scan_type : containerImage or repository
  • policy_type
    • accepted value for containerImage: ingestionOnly
    • accepted values for repository: orchestratedScan, ingestionOnly
  • product_access_token
  • product_config_name : default
  • snyk_api : URL to the Snyk instance, if you're using an on-prem installation.
  • fail_on_severity - See Fail on Severity.

Container scan settings​

The following settings apply to all scanners where the scan_type is containerImage.

  • container_type
    • accepted value(s): local_image, docker_v2, jfrog_artifactory, aws_ecr
      • for container_type set to local
        • None
      • for container_type set to docker_v2
        • container_access_id: Username
        • container_access_token: Password/Token
      • for container_type set to jfrog_artifactory
        • container_access_id: Username
        • container_access_token: Password/Token
      • for container_type set to aws_ecr
        • container_access_id: Username
        • container_access_token: Password/Token
        • container_region: AWS default region
  • container_domain

Ingestion file​

The following setting is required for Security steps where the policy_type is ingestionOnly.

  • ingestion_file The results data file to use when running an Ingestion scan. You should specify the full path to the data file in your workspace, such as /shared/customer_artifacts/my_scan_results.json.

    In addition to ingesting scan data in the external scanner's native format, STO steps can also ingest data in SARIF and Harness Custom JSON format.

    The following steps outline the general workflow for ingesting scan data into your pipeline. For a complete workflow description and example, go to Ingest Scan Results into an STO Pipeline.

    1. Specify a shared folder for your scan results, such as /shared/customer_artifacts. You can do this in the Overview tab of the Security stage where you're ingesting your data.

    2. Create a Run step that copies your scan results to the shared folder. You can run your scan externally, before you run the build, or set up the Run step to run the scan and then copy the results.

    3. Add a Security step after the Run step and add the target name, variant, and ingestion_file settings as described above.