Semgrep

Support level: Community

What is Semgrep

Semgrep: An application security solution that combines SAST, SCA, and secret detection.

-- https://semgrep.dev

Preparation

The following placeholders will be used:

• authentik.company is the FQDN of the authentik install.
• devcompany is the organization name on Semgrep Cloud platform.

authentik configuration

1. Log in to your authentik instance as an administrator.
2. Go to the admin interface.
3. Navigate to Customization -> Property mappings.
4. Create a new SAML property mapping with these parameters:
   • Name: semgrep-name
   • SAML Attribute name: name
   • Expression: return request.user.name
5. Create another SAML property mapping with these parameters:
   • Name: semgrep-email
   • SAML Attribute name: email
   • Expression: return request.user.email
6. Navigate to System -> Certificates.
7. Generate a new RSA certificate.
8. Download the generated certificate, as you will need it later.
9. Create a new SAML provider under Applications -> Providers using the following settings:
   • ACS URL: https://semgrep.dev/api/auth/saml/devcompany/
   • Issuer: https://authentik.company
   • Audience: semgrep-dev
   • Service Provider Binding: Post
   • Signing Keypair: Choose the RSA certificate you generated earlier.
   • Property mappings: semgrep-name and semgrep-email
10. Create a new application under Applications -> Applications, pick a name and a slug, and assign the provider that you just created.

Semgrep configuration

1. Log in to Semgrep Cloud platform as an administrator.
2. Click Settings on bottom left corner.
3. Navigate to Access -> Login methods.
4. Locate Single sign-on entry, click Add SSO configuration, select SAML2 SSO from the drop down.
5. Fill in the following:
   • Display name: Anything you like.
   • Email domain: company
   • IdP SSO URL: https://authentik.company/application/saml/<semgrep slug>/sso/binding/post/
   • IdP Issuer ID: https://authentik.company
   • Upload/paste certificate: Downloaded from the previous step.

Verification

1. Open an Incognito window and navigate to https://semgrep.dev/login
2. Click Use SSO on the login screen.
3. Enter the email address associated with the domain you provided earlier.
4. Log in to authentik.
5. You will be redirected to the home screen of Semgrep Cloud platform.