# AWS - Cognito Enum

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## Cognito

Amazon Cognito is utilized for **authentication, authorization, and user management** in web and mobile applications. It allows users the flexibility to sign in either directly using a **user name and password** or indirectly through a **third party**, including Facebook, Amazon, Google, or Apple.

Central to Amazon Cognito are two primary components:

1. **User Pools**: These are directories designed for your app users, offering **sign-up and sign-in functionalities**.
2. **Identity Pools**: These pools are instrumental in **authorizing users to access different AWS services**. They are not directly involved in the sign-in or sign-up process but are crucial for resource access post-authentication.

### **User pools**

To learn what is a **Cognito User Pool check**:

{{#ref}}
cognito-user-pools.md
{{#endref}}

### **Identity pools**

The learn what is a **Cognito Identity Pool check**:

{{#ref}}
cognito-identity-pools.md
{{#endref}}

## Enumeration

```bash
# List Identity Pools
aws cognito-identity list-identity-pools --max-results 60
aws cognito-identity describe-identity-pool --identity-pool-id "eu-west-2:38b294756-2578-8246-9074-5367fc9f5367"
aws cognito-identity list-identities --identity-pool-id <ident-pool-id> --max-results 60
aws cognito-identity get-identity-pool-roles --identity-pool-id <ident-pool-id>

# Identities Datasets
## Get dataset of identity id (inside identity pool)
aws cognito-sync list-datasets --identity-pool-id <ident-pool-id> --identity-id <ident-id>
## Get info of the dataset
aws cognito-sync describe-dataset --identity-pool-id <value> --identity-id <value> --dataset-name <value>
## Get dataset records
aws cognito-sync list-records --identity-pool-id <value> --identity-id <value> --dataset-name <value>

# User Pools
## Get pools
aws cognito-idp list-user-pools --max-results 60

## Get users
aws cognito-idp list-users --user-pool-id <user-pool-id>

## Get groups
aws cognito-idp list-groups --user-pool-id <user-pool-id>

## Get users in a group
aws cognito-idp list-users-in-group --user-pool-id <user-pool-id> --group-name <group-name>

## List App IDs of a user pool
aws cognito-idp list-user-pool-clients --user-pool-id <user-pool-id>

## List configured identity providers for a user pool
aws cognito-idp list-identity-providers --user-pool-id <user-pool-id>

## List user import jobs
aws cognito-idp list-user-import-jobs --user-pool-id <user-pool-id> --max-results 60

## Get MFA config of a user pool
aws cognito-idp get-user-pool-mfa-config --user-pool-id <user-pool-id>

## Get risk configuration
aws cognito-idp describe-risk-configuration --user-pool-id <user-pool-id>
```

### Identity Pools - Unauthenticated Enumeration

Just **knowing the Identity Pool ID** you might be able **get credentials of the role associated to unauthenticated** users (if any). [**Check how here**](cognito-identity-pools.md#accessing-iam-roles).

### User Pools - Unauthenticated Enumeration

Even if you **don't know a valid username** inside Cognito, you might be able to **enumerate** valid **usernames**, **BF** the **passwords** of even **register a new user** just **knowing the App client ID** (which is usually found in source code). [**Check how here**](cognito-user-pools.md#registration)**.**

## Privesc

{{#ref}}
../../aws-privilege-escalation/aws-cognito-privesc/README.md
{{#endref}}

## Unauthenticated Access

{{#ref}}
../../aws-unauthenticated-enum-access/aws-cognito-unauthenticated-enum/README.md
{{#endref}}

## Persistence

{{#ref}}
../../aws-persistence/aws-cognito-persistence/README.md
{{#endref}}

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