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---
table_display_block: true
---
# SAST Analyzers **(ULTIMATE)**
SAST relies on underlying third party tools that are wrapped into what we call
"Analyzers". An analyzer is a
[dedicated project](https://gitlab.com/gitlab-org/security-products/analyzers)
that wraps a particular tool to:
- Expose its detection logic.
- Handle its execution.
- Convert its output to the common format.
This is achieved by implementing the [common API](https://gitlab.com/gitlab-org/security-products/analyzers/common).
SAST supports the following official analyzers:
- [Bandit](https://gitlab.com/gitlab-org/security-products/analyzers/bandit)
- [Brakeman](https://gitlab.com/gitlab-org/security-products/analyzers/brakeman)
- [ESLint (Javascript)](https://gitlab.com/gitlab-org/security-products/analyzers/eslint)
- [SpotBugs with the Find Sec Bugs plugin (Ant, Gradle and wrapper, Grails, Maven and wrapper, SBT)](https://gitlab.com/gitlab-org/security-products/analyzers/spotbugs)
- [Flawfinder](https://gitlab.com/gitlab-org/security-products/analyzers/flawfinder)
- [Gosec](https://gitlab.com/gitlab-org/security-products/analyzers/gosec)
- [NodeJsScan](https://gitlab.com/gitlab-org/security-products/analyzers/nodejs-scan)
- [PHP CS security-audit](https://gitlab.com/gitlab-org/security-products/analyzers/phpcs-security-audit)
- [Secrets (Gitleaks, TruffleHog & Diffence secret detectors)](https://gitlab.com/gitlab-org/security-products/analyzers/secrets)
- [Security Code Scan (.NET)](https://gitlab.com/gitlab-org/security-products/analyzers/security-code-scan)
- [TSLint (Typescript)](https://gitlab.com/gitlab-org/security-products/analyzers/tslint)
- [Sobelow (Elixir Phoenix)](https://gitlab.com/gitlab-org/security-products/analyzers/sobelow)
The analyzers are published as Docker images that SAST will use to launch
dedicated containers for each analysis.
SAST is pre-configured with a set of **default images** that are maintained by
GitLab, but users can also integrate their own **custom images**.
## Official default analyzers
Any custom change to the official analyzers can be achieved by using an
[environment variable in your `.gitlab-ci.yml`](index.md#customizing-the-sast-settings).
### Using a custom Docker mirror
You can switch to a custom Docker registry that provides the official analyzer
images under a different prefix. For instance, the following instructs
SAST to pull `my-docker-registry/gl-images/bandit`
instead of `registry.gitlab.com/gitlab-org/security-products/analyzers/bandit`.
In `.gitlab-ci.yml` define:
```yaml
include:
template: SAST.gitlab-ci.yml
variables:
SAST_ANALYZER_IMAGE_PREFIX: my-docker-registry/gl-images
```
This configuration requires that your custom registry provides images for all
the official analyzers.
### Selecting specific analyzers
You can select the official analyzers you want to run. Here's how to enable
`bandit` and `flawfinder` while disabling all the other default ones.
In `.gitlab-ci.yml` define:
```yaml
include:
template: SAST.gitlab-ci.yml
variables:
SAST_DEFAULT_ANALYZERS: "bandit,flawfinder"
```
`bandit` runs first. When merging the reports, SAST will
remove the duplicates and will keep the `bandit` entries.
### Disabling default analyzers
Setting `SAST_DEFAULT_ANALYZERS` to an empty string will disable all the official
default analyzers. In `.gitlab-ci.yml` define:
```yaml
include:
template: SAST.gitlab-ci.yml
variables:
SAST_DEFAULT_ANALYZERS: ""
```
That's needed when one totally relies on [custom analyzers](#custom-analyzers).
## Custom Analyzers
You can provide your own analyzers as a comma separated list of Docker images.
Here's how to add `analyzers/csharp` and `analyzers/perl` to the default images:
In `.gitlab-ci.yml` define:
```yaml
include:
template: SAST.gitlab-ci.yml
variables:
SAST_ANALYZER_IMAGES: "my-docker-registry/analyzers/csharp,amy-docker-registry/analyzers/perl"
```
The values must be the full path to the container registry images,
like what you would feed to the `docker pull` command.
NOTE: **Note:**
This configuration doesn't benefit from the integrated detection step.
SAST has to fetch and spawn each Docker image to establish whether the
custom analyzer can scan the source code.
## Analyzers Data
| Property \ Tool | Bandit | Brakeman | ESLint security | Find Sec Bugs | Flawfinder | Go AST Scanner | NodeJsScan | Php CS Security Audit | Security code Scan (.NET) | TSLint Security | Sobelow |
| --------------------------------------- | :------------------: | :------------------: | :------------------: | :------------------: | :------------------: | :------------------: | :------------------: | :---------------------: | :-------------------------: | :-------------: | :----------------: |
| Severity | ✓ | 𐄂 | 𐄂 | ✓ | 𐄂 | ✓ | 𐄂 | ✓ | 𐄂 | ✓ | 𐄂 |
| Title | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Description | 𐄂 | 𐄂 | ✓ | ✓ | 𐄂 | 𐄂 | ✓ | 𐄂 | 𐄂 | ✓ | ✓ |
| File | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Start line | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| End line | ✓ | 𐄂 | ✓ | ✓ | 𐄂 | 𐄂 | 𐄂 | 𐄂 | 𐄂 | ✓ | 𐄂 |
| Start column | 𐄂 | 𐄂 | ✓ | ✓ | ✓ | ✓ | 𐄂 | ✓ | ✓ | ✓ | 𐄂 |
| End column | 𐄂 | 𐄂 | ✓ | ✓ | 𐄂 | 𐄂 | 𐄂 | 𐄂 | 𐄂 | ✓ | 𐄂 |
| External id (e.g. CVE) | 𐄂 | ⚠ | 𐄂 | ⚠ | ✓ | 𐄂 | 𐄂 | 𐄂 | 𐄂 | 𐄂 | 𐄂 |
| URLs | 𐄂 | ✓ | 𐄂 | ⚠ | 𐄂 | 𐄂 | 𐄂 | 𐄂 | 𐄂 | 𐄂 | 𐄂 |
| Internal doc/explanation | ⚠ | ✓ | 𐄂 | ✓ | 𐄂 | 𐄂 | 𐄂 | 𐄂 | 𐄂 | 𐄂 | ✓ |
| Solution | 𐄂 | 𐄂 | 𐄂 | ⚠ | ✓ | 𐄂 | 𐄂 | 𐄂 | 𐄂 | 𐄂 | 𐄂 |
| Confidence | ✓ | ✓ | 𐄂 | ✓ | ✓ | ✓ | 𐄂 | 𐄂 | 𐄂 | 𐄂 | ✓ |
| Affected item (e.g. class or package) | 𐄂 | ✓ | 𐄂 | ✓ | ✓ | 𐄂 | 𐄂 | 𐄂 | 𐄂 | 𐄂 | 𐄂 |
| Source code extract | ✓ | ✓ | ✓ | 𐄂 | ✓ | ✓ | 𐄂 | 𐄂 | 𐄂 | 𐄂 | 𐄂 |
| Internal ID | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | 𐄂 | ✓ | ✓ | ✓ | ✓ |
- ✓ => we have that data
- ⚠ => we have that data but it's partially reliable, or we need to extract it from unstructured content
- 𐄂 => we don't have that data or it would need to develop specific or inefficient/unreliable logic to obtain it.
The values provided by these tools are heterogeneous so they are sometimes
normalized into common values (e.g., `severity`, `confidence`, etc).
doc/user/application_security/sast/index.md
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......@@ -135,6 +135,58 @@ sast:
CI_DEBUG_TRACE: "true"
```
### Available variables
SAST can be [configured](#customizing-the-sast-settings) using environment variables.
#### Docker images
The following are Docker image-related variables.
| Environment variable | Description |
|-------------------------------|--------------------------------------------------------------------------------|
| `SAST_ANALYZER_IMAGES` | Comma separated list of custom images. Default images are still enabled. Read more about [customizing analyzers](analyzers.md). |
| `SAST_ANALYZER_IMAGE_PREFIX` | Override the name of the Docker registry providing the default images (proxy). Read more about [customizing analyzers](analyzers.md). |
| `SAST_ANALYZER_IMAGE_TAG` | Override the Docker tag of the default images. Read more about [customizing analyzers](analyzers.md). |
| `SAST_DEFAULT_ANALYZERS` | Override the names of default images. Read more about [customizing analyzers](analyzers.md). |
| `SAST_PULL_ANALYZER_IMAGES` | Pull the images from the Docker registry (set to 0 to disable). Read more about [customizing analyzers](analyzers.md). |
### Vulnerability filters
Some analyzers make it possible to filter out vulnerabilities under a given threshold.
| `SAST_BANDIT_EXCLUDED_PATHS` | - | comma-separated list of paths to exclude from scan. Uses Python's [`fnmatch` syntax](https://docs.python.org/2/library/fnmatch.html) |
| `SAST_BRAKEMAN_LEVEL` | 1 | Ignore Brakeman vulnerabilities under given confidence level. Integer, 1=Low 3=High. |
| `SAST_FLAWFINDER_LEVEL` | 1 | Ignore Flawfinder vulnerabilities under given risk level. Integer, 0=No risk, 5=High risk. |
| `SAST_GITLEAKS_ENTROPY_LEVEL` | 8.0 | Minimum entropy for secret detection. Float, 0.0 = low, 8.0 = high. |
| `SAST_GOSEC_LEVEL` | 0 | Ignore gosec vulnerabilities under given confidence level. Integer, 0=Undefined, 1=Low, 1=Medium, 3=High. |
| `SAST_EXCLUDED_PATHS` | - | Exclude vulnerabilities from output based on the paths. This is a comma-separated list of patterns. Patterns can be globs, file or folder paths. Parent directories will also match patterns. |
### Timeouts
The following variables configure timeouts.
| `SAST_DOCKER_CLIENT_NEGOTIATION_TIMEOUT` | 2m | Time limit for Docker client negotiation. Timeouts are parsed using Go's [`ParseDuration`](https://golang.org/pkg/time/#ParseDuration). Valid time units are "ns", "us" (or "µs"), "ms", "s", "m", "h". For example, "300ms", "1.5h" or "2h45m". |
| `SAST_PULL_ANALYZER_IMAGE_TIMEOUT` | 5m | Time limit when pulling the image of an analyzer. Timeouts are parsed using Go's [`ParseDuration`](https://golang.org/pkg/time/#ParseDuration). Valid time units are "ns", "us" (or "µs"), "ms", "s", "m", "h". For example, "300ms", "1.5h" or "2h45m". |
| `SAST_RUN_ANALYZER_TIMEOUT` | 20m | Time limit when running an analyzer. Timeouts are parsed using Go's [`ParseDuration`](https://golang.org/pkg/time/#ParseDuration). Valid time units are "ns", "us" (or "µs"), "ms", "s", "m", "h". For example, "300ms", "1.5h" or "2h45m".|
### Analyzer settings
Some analyzers can be customized with environment variables.
| Environment variable | Analyzer | Description |
|-------------------------|----------|----------|
| `ANT_HOME` | spotbugs | The `ANT_HOME` environment variable. |
| `ANT_PATH` | spotbugs | Path to the `ant` executable. |
| `GRADLE_PATH` | spotbugs | Path to the `gradle` executable. |
| `JAVA_OPTS` | spotbugs | Additional arguments for the `java` executable. |
| `JAVA_PATH` | spotbugs | Path to the `java` executable. |
| `MAVEN_CLI_OPTS` | spotbugs | Additional arguments for the `mvn` or `mvnw` executable. |
| `MAVEN_PATH` | spotbugs | Path to the `mvn` executable. |
| `MAVEN_REPO_PATH` | spotbugs | Path to the Maven local repository (shortcut for the `maven.repo.local` property). |
| `SBT_PATH` | spotbugs | Path to the `sbt` executable. |
| `FAIL_NEVER` | spotbugs | Set to `1` to ignore compilation failure. |
## Reports JSON format
CAUTION: **Caution:**
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