To remediate the misconfiguration of SSH keys not being instance-specific in GCP using GCP CLI, follow these steps:

1. Open the Cloud Shell in the GCP console.

2. Check the current SSH keys in your project using the following command:

gcloud compute os-login ssh-keys list

3. Identify the SSH keys that are not instance-specific and remove them using the following command:

gcloud compute os-login ssh-keys remove --key-file=<path-to-key-file>

4. Create a new instance-specific SSH key using the following command:

ssh-keygen -t rsa -f ~/.ssh/<key-file-name> -C <comment>

5. Add the new SSH key to your project using the following command:

gcloud compute os-login ssh-keys add --key-file=<path-to-key-file>

6. Create a new instance in GCP and specify the new SSH key as the metadata for the instance.

7. Connect to the new instance using the new instance-specific SSH key.

By following these steps, you can remediate the misconfiguration of SSH keys not being instance-specific in GCP using GCP CLI.

To remediate the misconfiguration “SSH Keys Should Be Instance Specific” for GCP using Python, you can follow the below steps:

1. First, you need to create a new SSH key pair for the instance. You can use the paramiko library in Python to generate an SSH key pair.

   import paramiko
   
   ssh = paramiko.SSHClient()
   ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
   ssh.connect('instance-ip-address', username='username', password='password')
   ssh.exec_command('ssh-keygen -t rsa')
   

2. Once you have generated the SSH key pair, you need to add the public key to the instance’s metadata. You can use the google-auth and google-api-python-client libraries in Python to interact with GCP APIs.

   from google.oauth2 import service_account
   from googleapiclient.discovery import build
   
   credentials = service_account.Credentials.from_service_account_file('path/to/credentials.json')
   
   compute = build('compute', 'v1', credentials=credentials)
   
   project_id = 'your-project-id'
   zone = 'instance-zone'
   instance_name = 'instance-name'
   
   instance = compute.instances().get(project=project_id, zone=zone, instance=instance_name).execute()
   
   metadata = instance['metadata']
   items = metadata.get('items', [])
   
   # Remove any existing SSH keys
   items = [item for item in items if item['key'] != 'ssh-keys']
   
   # Add the new SSH key
   ssh_key = 'ssh-rsa <public-key> instance-specific-key'
   items.append({'key': 'ssh-keys', 'value': ssh_key})
   
   # Update the instance metadata
   metadata['items'] = items
   compute.instances().setMetadata(project=project_id, zone=zone, instance=instance_name, body={'metadata': metadata}).execute()
   

3. Finally, you can test the new SSH key by connecting to the instance using the private key.

   ssh.connect('instance-ip-address', username='username', key_filename='/path/to/private/key')
   

By following these steps, you can remediate the misconfiguration “SSH Keys Should Be Instance Specific” for GCP using Python.