To remediate the SQL Server User Connections Flag misconfiguration for GCP using GCP CLI, follow these steps:

1. Open the Cloud Shell by clicking on the Cloud Shell icon located in the top right-hand corner of the GCP Console.

2. Run the following command to connect to the SQL Server instance:

   gcloud sql connect [INSTANCE_NAME] --user=[USER_NAME]
   

   Replace [INSTANCE_NAME] with the name of your SQL Server instance and [USER_NAME] with the name of your SQL Server user.

3. Once connected, run the following command to set the SQL Server User Connections flag to a non-limiting value:

   EXEC sp_configure 'user connections', 0
   RECONFIGURE
   

   This will set the maximum number of user connections to 0, which is a non-limiting value.

4. Verify that the flag has been set correctly by running the following command:

   EXEC sp_configure 'user connections'
   

   This should return a value of 0 for the maximum number of user connections.

5. Exit the SQL Server instance by running the following command:

   exit
   

   This will disconnect you from the SQL Server instance.

6. Verify that the misconfiguration has been remediated by running a vulnerability scan or reviewing the configuration settings for the SQL Server instance.

To remediate the SQL Server User Connections Flag misconfiguration for GCP, you can use the following steps:

1. Connect to your GCP project using the Python SDK and authenticate with your credentials.
2. Identify the SQL Server instance that has the misconfiguration.
3. Use the Cloud SQL Admin API to update the userConnections flag to a non-limiting value.
4. Verify that the flag has been updated successfully.

Here’s a sample Python code that you can use to remediate the misconfiguration:

# Import the required libraries
from google.oauth2 import service_account
from googleapiclient.discovery import build

# Set the required variables
project_id = 'your-project-id'
instance_id = 'your-instance-id'
new_user_connections = 'max'

# Authenticate with your credentials
credentials = service_account.Credentials.from_service_account_file(
    'path/to/your/credentials.json'
)

# Create a Cloud SQL Admin API client
sqladmin = build('sqladmin', 'v1beta4', credentials=credentials)

# Update the userConnections flag to a non-limiting value
request_body = {
    'settings': {
        'userVariables': {
            'userConnections': new_user_connections
        }
    }
}
response = sqladmin.instances().patch(
    project=project_id,
    instance=instance_id,
    body=request_body
).execute()

# Verify that the flag has been updated successfully
if response['settings']['userVariables']['userConnections'] == new_user_connections:
    print('The userConnections flag has been updated successfully.')
else:
    print('There was an error updating the userConnections flag.')

Make sure to replace your-project-id, your-instance-id, and path/to/your/credentials.json with the appropriate values for your GCP project and instance. Also, note that this code uses the v1beta4 version of the Cloud SQL Admin API, so you may need to update it to the latest version if necessary.