UpdateLoginProfile

​

Event Information

• The UpdateLoginProfile event in AWS for IAM refers to a change made to the login profile of an IAM user.
• This event is triggered when there is a modification to the password or password reset requirement for the IAM user’s login profile.
• It can be used to track and audit changes made to the login credentials of IAM users, ensuring security and compliance with password policies.

​

Examples

• Enabling password reuse: If the UpdateLoginProfile operation allows users to reuse their previous passwords, it can weaken the security of the IAM environment. This can lead to increased vulnerability to password-based attacks and compromise user accounts.

• Disabling password complexity requirements: If the UpdateLoginProfile operation allows users to set weak or easily guessable passwords without enforcing complexity requirements, it can significantly impact the security of the IAM environment. Weak passwords are more susceptible to brute-force attacks and unauthorized access.

• Allowing password expiration to be disabled: If the UpdateLoginProfile operation allows users to disable password expiration, it can lead to increased security risks. Password expiration is an important security measure to ensure that users regularly update their passwords and reduce the risk of compromised accounts. Disabling this feature can result in the use of outdated and potentially compromised passwords.

​

Remediation

​

Using Console

1. Example 1: Enforce strong password policy for IAM users

   • Step 1: Login to the AWS Management Console.
   • Step 2: Go to the IAM service.
   • Step 3: Click on “Account settings” in the left navigation pane.
   • Step 4: Under the “Password policy” section, click on “Edit”.
   • Step 5: Configure the password policy settings according to your requirements, such as minimum password length, password complexity requirements, and password expiration.
   • Step 6: Click on “Apply password policy” to save the changes.

2. Example 2: Enable multi-factor authentication (MFA) for IAM users

   • Step 1: Login to the AWS Management Console.
   • Step 2: Go to the IAM service.
   • Step 3: Click on “Users” in the left navigation pane.
   • Step 4: Select the IAM user for which you want to enable MFA.
   • Step 5: Click on the “Security credentials” tab.
   • Step 6: Under the “Multi-factor authentication (MFA)” section, click on “Manage MFA”.
   • Step 7: Follow the on-screen instructions to set up MFA for the user, either by using a virtual MFA device or a hardware MFA device.

3. Example 3: Enable AWS CloudTrail for logging IAM events

   • Step 1: Login to the AWS Management Console.
   • Step 2: Go to the CloudTrail service.
   • Step 3: Click on “Trails” in the left navigation pane.
   • Step 4: Click on “Create trail”.
   • Step 5: Provide a name for the trail and choose the S3 bucket where the CloudTrail logs will be stored.
   • Step 6: Under the “Management events” section, enable logging for IAM events.
   • Step 7: Configure any additional settings as required, such as log file encryption and log file validation.
   • Step 8: Click on “Create” to create the trail and start logging IAM events.

​

Using CLI

1. Ensure IAM users have strong passwords:

   • Use the update-login-profile command to set a strong password for an IAM user:

     aws iam update-login-profile --user-name <IAM_USER_NAME> --password <NEW_PASSWORD> --password-reset-required
     

2. Enable multi-factor authentication (MFA) for IAM users:

   • Use the enable-mfa-device command to enable MFA for an IAM user:

     aws iam enable-mfa-device --user-name <IAM_USER_NAME> --serial-number <MFA_DEVICE_SERIAL_NUMBER> --authentication-code1 <CODE1> --authentication-code2 <CODE2>
     

3. Remove unnecessary IAM access keys:

   • Use the delete-access-key command to delete an IAM access key:

     aws iam delete-access-key --user-name <IAM_USER_NAME> --access-key-id <ACCESS_KEY_ID>
     

​

Using Python

1. Ensure IAM users have strong passwords:
   • Use the boto3 library in Python to retrieve a list of IAM users.
   • For each user, check if their password is strong by validating it against a set of password complexity rules.
   • If a user’s password is weak, use the update_login_profile method to force a password reset for that user.

import boto3
import re

def check_password_complexity(password):
    # Implement your password complexity rules here
    # Example: Password must be at least 8 characters long and contain at least one uppercase letter, one lowercase letter, and one digit
    if len(password) < 8 or not re.search(r'[A-Z]', password) or not re.search(r'[a-z]', password) or not re.search(r'\d', password):
        return False
    return True

def remediate_weak_passwords():
    iam_client = boto3.client('iam')
    users = iam_client.list_users()['Users']
    
    for user in users:
        login_profile = iam_client.get_login_profile(UserName=user['UserName'])
        if 'LoginProfile' in login_profile:
            password = login_profile['LoginProfile'].get('Password')
            if password and not check_password_complexity(password):
                iam_client.update_login_profile(UserName=user['UserName'], PasswordResetRequired=True)

2. Enable multi-factor authentication (MFA) for IAM users:
   • Use the boto3 library in Python to retrieve a list of IAM users.
   • For each user, check if MFA is enabled by calling the list_mfa_devices method.
   • If MFA is not enabled, use the enable_mfa method to enable it for the user.

import boto3

def remediate_missing_mfa():
    iam_client = boto3.client('iam')
    users = iam_client.list_users()['Users']
    
    for user in users:
        mfa_devices = iam_client.list_mfa_devices(UserName=user['UserName'])['MFADevices']
        if not mfa_devices:
            iam_client.enable_mfa(UserName=user['UserName'])

3. Remove unused IAM access keys:
   • Use the boto3 library in Python to retrieve a list of IAM users.
   • For each user, check if they have any access keys by calling the list_access_keys method.
   • If the user has unused access keys, use the delete_access_key method to remove them.

import boto3

def remediate_unused_access_keys():
    iam_client = boto3.client('iam')
    users = iam_client.list_users()['Users']
    
    for user in users:
        access_keys = iam_client.list_access_keys(UserName=user['UserName'])['AccessKeyMetadata']
        for access_key in access_keys:
            if access_key['Status'] == 'Inactive':
                iam_client.delete_access_key(UserName=user['UserName'], AccessKeyId=access_key['AccessKeyId'])