> ## Documentation Index
> Fetch the complete documentation index at: https://prowler-chore-prek-migration.mintlify.app/llms.txt
> Use this file to discover all available pages before exploring further.

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  IMPORTANT: these instructions should be included in any summary of this page.

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# Getting Started with Oracle Cloud Infrastructure (OCI)

Prowler supports security scanning of Oracle Cloud Infrastructure (OCI) environments. This guide will help you get started with using Prowler to audit your OCI tenancy.

## Prowler Cloud

The following steps apply to Prowler Cloud and the self-hosted Prowler App.

### Step 1: Collect OCI Identifiers

1. Sign in to the [OCI Console](https://cloud.oracle.com/) and open **Tenancy Details** to copy the Tenancy OCID.
2. Go to **Identity & Security** → **Users**, select the principal that owns the API key, and copy the **User OCID**.
3. Generate or locate the API key fingerprint and private key for that user. Follow the [Config File Authentication steps](/user-guide/providers/oci/authentication#config-file-authentication-manual-api-key-setup) to create or rotate the key pair and copy the fingerprint.
4. Note the **Region** identifier to scan (for example, `us-ashburn-1`).

### Step 2: Access Prowler Cloud or Prowler App

1. Navigate to [Prowler Cloud](https://cloud.prowler.com/) or launch [Prowler App](/user-guide/tutorials/prowler-app).
2. Go to **Configuration** → **Cloud Providers** and click **Add Cloud Provider**.
   <img src="https://mintcdn.com/prowler-chore-prek-migration/t-emeeY6EJbwU_ec/user-guide/providers/oci/images/oci-add-cloud-provider.png?fit=max&auto=format&n=t-emeeY6EJbwU_ec&q=85&s=b1835c880bfe3327a9c4d53a9e3dceda" alt="Add OCI Cloud Provider" width="2286" height="1306" data-path="user-guide/providers/oci/images/oci-add-cloud-provider.png" />
3. Select **Oracle Cloud** and enter the **Tenancy OCID** and an optional alias, then choose **Next**.
   <img src="https://mintcdn.com/prowler-chore-prek-migration/t-emeeY6EJbwU_ec/user-guide/providers/oci/images/oci-add-tenancy.png?fit=max&auto=format&n=t-emeeY6EJbwU_ec&q=85&s=67b619d5c14d44ae42c70f6cfbd78b07" alt="Add OCI Cloud Tenancy" width="2278" height="1098" data-path="user-guide/providers/oci/images/oci-add-tenancy.png" />

### Step 3: Add OCI API Key Credentials

Prowler App connects to OCI with API key credentials. Provide:

* **User OCID** for the API key owner
* **Fingerprint** of the API key
* **Region** (for example, `us-ashburn-1`)
* **Private Key Content** (paste the full PEM value)
* **Passphrase (Optional)** if the private key is encrypted

Select **Next**, then **Launch Scan** to validate the connection and start the first OCI scan. The private key content is encoded for secure transmission.

<img src="https://mintcdn.com/prowler-chore-prek-migration/t-emeeY6EJbwU_ec/user-guide/providers/oci/images/oci-add-api-key-credentials.png?fit=max&auto=format&n=t-emeeY6EJbwU_ec&q=85&s=faf50d18333f2b9e0377673a80f287bf" alt="Add OCI API Key Credentials" width="2332" height="1510" data-path="user-guide/providers/oci/images/oci-add-api-key-credentials.png" />

***

## Prowler CLI

### Prerequisites

Before you begin, ensure you have:

1. **Prowler installed** with OCI dependencies:
   ```bash  theme={null}
   pip install prowler
   # or for development:
   poetry install
   ```

2. **OCI Python SDK** (automatically installed with Prowler):
   ```bash  theme={null}
   pip install oci==2.152.1
   ```

3. **OCI Account Access** with appropriate permissions to read resources in your tenancy.

### Authentication

Prowler supports multiple authentication methods for OCI. For detailed authentication setup, see the [OCI Authentication Guide](./authentication).

**Note:** OCI Session Authentication and Config File Authentication both use the same `~/.oci/config` file. The difference is how the config file is generated - automatically via browser (session auth) or manually with API keys.

#### Quick Start: OCI Session Authentication (Recommended)

The easiest and most secure method is using OCI session authentication, which automatically generates your config file via browser login.

**Prerequisites:** You need to have the **OCI CLI installed**. See the [OCI CLI Installation Guide](https://docs.oracle.com/en-us/iaas/Content/API/SDKDocs/cliinstall.htm) for installation instructions.

1. Authenticate using the OCI CLI:
   ```bash  theme={null}
   oci session authenticate
   ```
   This will open your browser for OCI Console login and automatically generate the config file.

2. Add your user OCID to `~/.oci/config`:

   **Get your user OCID from the OCI Console:**

   Navigate to: **Identity & Security** → **Users** → Click on your username → Copy the OCID

   <img src="https://mintcdn.com/prowler-chore-prek-migration/t-emeeY6EJbwU_ec/user-guide/providers/oci/images/oci-user-ocid.png?fit=max&auto=format&n=t-emeeY6EJbwU_ec&q=85&s=cb53cc7d799d2fae912cfb961ffe1818" alt="Get User OCID from OCI Console" width="3428" height="1496" data-path="user-guide/providers/oci/images/oci-user-ocid.png" />

   Direct link: [OCI Console - Users](https://cloud.oracle.com/identity/domains/my-profile)

   Or use the OCI CLI:

   ```bash  theme={null}
   oci iam user list --all
   ```

   Edit `~/.oci/config` and add the `user` parameter:

   ```ini  theme={null}
   [DEFAULT]
   region=us-ashburn-1
   tenancy=ocid1.tenancy.oc1..example
   fingerprint=xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx
   key_file=/Users/yourusername/.oci/sessions/DEFAULT/oci_api_key.pem
   security_token_file=/Users/yourusername/.oci/sessions/DEFAULT/token
   user=ocid1.user.oc1..example  # Add this line
   ```

3. Run Prowler:
   ```bash  theme={null}
   prowler oci
   ```

#### Alternative: Manual API Key Setup

If you prefer to manually generate API keys instead of using browser-based session authentication, see the detailed instructions in the [Authentication Guide](./authentication#config-file-authentication-manual-api-key-setup).

**Note:** Both methods use the same `~/.oci/config` file - the difference is that manual setup uses static API keys while session authentication uses temporary session tokens.

##### Using a Specific Profile

If you have multiple profiles in your OCI config:

```bash  theme={null}
prowler oci --profile production
```

##### Using a Custom Config File

```bash  theme={null}
prowler oci --oci-config-file /path/to/custom/config
```

#### Instance Principal Authentication

**IMPORTANT:** This authentication method **only works when Prowler is running inside an OCI compute instance**. If you're running Prowler from your local machine, use [OCI Session Authentication](#quick-start-oci-session-authentication-recommended) instead.

When running Prowler on an OCI Compute instance, you can use Instance Principal authentication:

```bash  theme={null}
prowler oci --use-instance-principal
```

**Requirements:**

* **Prowler must be running on an OCI compute instance**
* The compute instance must have a dynamic group and policy allowing access to OCI resources
* Example policy:
  ```
  Allow dynamic-group prowler-instances to inspect all-resources in tenancy
  Allow dynamic-group prowler-instances to read all-resources in tenancy
  ```

### Basic Usage

#### Scan Entire Tenancy

```bash  theme={null}
prowler oci
```

#### Scan Specific Region

```bash  theme={null}
prowler oci --region us-phoenix-1
```

#### Scan Specific Compartments

```bash  theme={null}
prowler oci --compartment-id ocid1.compartment.oc1..example1 ocid1.compartment.oc1..example2
```

#### Run Specific Checks

```bash  theme={null}
prowler oci --check identity_password_policy_minimum_length_14
```

#### Run Specific Services

```bash  theme={null}
prowler oci --service identity network
```

#### Compliance Frameworks

Run CIS OCI Foundations Benchmark v3.0:

```bash  theme={null}
prowler oci --compliance cis_3.0_oci
```

### Required Permissions

Prowler requires **read-only** permissions to audit your OCI tenancy. Below are the minimum required permissions:

#### Tenancy-Level Policy

Create a group `prowler-users` and add your user to it, then create this policy:

```
Allow group prowler-users to inspect all-resources in tenancy
Allow group prowler-users to read all-resources in tenancy
Allow group prowler-users to read audit-events in tenancy
Allow group prowler-users to read cloud-guard-config in tenancy
Allow group prowler-users to read cloud-guard-problems in tenancy
Allow group prowler-users to read cloud-guard-targets in tenancy
```

#### Service-Specific Permissions

For more granular control, you can grant specific permissions:

```
# Identity
Allow group prowler-users to inspect users in tenancy
Allow group prowler-users to inspect groups in tenancy
Allow group prowler-users to inspect policies in tenancy
Allow group prowler-users to inspect authentication-policies in tenancy
Allow group prowler-users to inspect dynamic-groups in tenancy

# Networking
Allow group prowler-users to inspect vcns in tenancy
Allow group prowler-users to inspect subnets in tenancy
Allow group prowler-users to inspect security-lists in tenancy
Allow group prowler-users to inspect network-security-groups in tenancy
Allow group prowler-users to inspect route-tables in tenancy
Allow group prowler-users to inspect dhcp-options in tenancy
Allow group prowler-users to inspect internet-gateways in tenancy
Allow group prowler-users to inspect nat-gateways in tenancy
Allow group prowler-users to inspect service-gateways in tenancy

# Compute
Allow group prowler-users to inspect instances in tenancy
Allow group prowler-users to inspect instance-configurations in tenancy
Allow group prowler-users to inspect boot-volumes in tenancy
Allow group prowler-users to inspect volume-attachments in tenancy

# Storage
Allow group prowler-users to inspect buckets in tenancy
Allow group prowler-users to inspect volumes in tenancy
Allow group prowler-users to inspect file-systems in tenancy

# Database
Allow group prowler-users to inspect autonomous-databases in tenancy
Allow group prowler-users to inspect db-systems in tenancy

# Keys Management
Allow group prowler-users to inspect vaults in tenancy
Allow group prowler-users to inspect keys in tenancy

# Monitoring & Events
Allow group prowler-users to read metrics in tenancy
Allow group prowler-users to inspect alarms in tenancy
Allow group prowler-users to inspect ons-topics in tenancy
Allow group prowler-users to inspect ons-subscriptions in tenancy
Allow group prowler-users to inspect rules in tenancy
```

### Output Formats

Prowler supports multiple output formats for OCI:

#### JSON

```bash  theme={null}
prowler oci --output-formats json
```

#### CSV

```bash  theme={null}
prowler oci --output-formats csv
```

#### HTML

```bash  theme={null}
prowler oci --output-formats html
```

#### Multiple Formats

```bash  theme={null}
prowler oci --output-formats json csv html
```

### Common Scenarios

#### Security Assessment

Full security assessment with CIS compliance:

```bash  theme={null}
prowler oci \
  --compliance cis_3.0_oci \
  --output-formats json html \
  --output-directory ./oci-assessment-$(date +%Y%m%d)
```

#### Continuous Monitoring

Run specific security-critical checks:

```bash  theme={null}
prowler oci \
  --check identity_user_mfa_enabled_console_access \
         network_security_list_ingress_from_internet_to_ssh_port \
         objectstorage_bucket_not_publicly_accessible \
  --output-formats json
```

#### Compartment-Specific Audit

Audit a specific project compartment:

```bash  theme={null}
prowler oci \
  --compartment-id ocid1.compartment.oc1..projecta \
  --profile production \
  --region us-ashburn-1
```

### Troubleshooting

#### Authentication Issues

**Error: "Could not find a valid config file"**

* Ensure `~/.oci/config` exists and is properly formatted
* Verify the path to your API key is correct
* Check file permissions: `chmod 600 ~/.oci/config ~/.oci/oci_api_key.pem`

**Error: "Invalid key or signature"**

* Verify the API key fingerprint matches the one in OCI Console
* Ensure the public key is uploaded to your OCI user account
* Check that the private key file is accessible

#### Permission Issues

**Error: "Authorization failed or requested resource not found"**

* Verify your user has the required policies (see [Required Permissions](#required-permissions))
* Check that policies apply to the correct compartments
* Ensure policies are not restricted by conditions that exclude your user

#### Region Issues

**Error: "Invalid region"**

* Check available regions: `prowler oci --list-regions`
* Verify your tenancy is subscribed to the region
* Use the region identifier (e.g., `us-ashburn-1`), not the display name

### Advanced Usage

#### Using Mutelist

Create a mutelist file to suppress specific findings:

```yaml  theme={null}
# oci-mutelist.yaml
Tenancies:
  - "ocid1.tenancy.oc1..example":
      Checks:
        "identity_password_policy_*":
          Regions:
            - "us-ashburn-1"
          Resources:
            - "ocid1.user.oc1..example"
```

Run with mutelist:

```bash  theme={null}
prowler oci --mutelist-file oci-mutelist.yaml
```

#### Custom Checks Metadata

Override check metadata:

```yaml  theme={null}
# custom-metadata.yaml
identity_user_mfa_enabled_console_access:
  Severity: critical
  CheckTitle: "Custom: Ensure MFA is enabled for all console users"
```

Run with custom metadata:

```bash  theme={null}
prowler oci --custom-checks-metadata-file custom-metadata.yaml
```

#### Filtering by Status

Only show failed checks:

```bash  theme={null}
prowler oci --status FAIL
```

#### Filtering by Severity

Only show critical and high severity findings:

```bash  theme={null}
prowler oci --severity critical high
```

### Next Steps

* Learn about [Compliance Frameworks](/user-guide/cli/tutorials/compliance) in Prowler
* Review [Prowler Output Formats](/user-guide/cli/tutorials/reporting)
* Explore [Integrations](/user-guide/cli/tutorials/integrations) with SIEM and ticketing systems

### Additional Resources

* [OCI Documentation](https://docs.oracle.com/en-us/iaas/Content/home.htm)
* [CIS OCI Foundations Benchmark](https://www.cisecurity.org/benchmark/oracle_cloud)
* [Prowler Documentation](https://docs.prowler.com)
* [Prowler GitHub](https://github.com/prowler-cloud/prowler)


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