AWS SES Identities Should Not Be Exposed
More Info:
Your AWS SES identities like domains or email addresses should not be exposed to everyone. This will prevent unauthorized users from sending emails on your behalf and restrict access only to trusted entities by implementing the appropriate AWS SES sending authorization policies.Risk Level
MediumAddress
SecurityCompliance Standards
CBPTriage and Remediation
Remediation
Using Console
Using Console
To remediate the misconfiguration of AWS SES identities being exposed, follow these steps using the AWS Management Console:
- Login to AWS Console: Go to the AWS Management Console at https://aws.amazon.com/ and log in using your credentials.
- Navigate to SES: In the AWS Management Console, search for “SES” in the services search bar and click on “Simple Email Service” to open the SES dashboard.
- Access Identities: In the SES dashboard, click on the “Identities” link on the left-hand side menu. This will display a list of all the identities (email addresses or domains) that are configured in SES.
- Check Identity Policies: Click on each identity (email address or domain) listed to review the policies associated with it. Ensure that no policies are exposing the identities to unauthorized users.
- Update Identity Policies: If you find any identity with policies that expose it, click on the identity and navigate to the “Identity Policies” tab. Edit the policy to restrict access and ensure that only authorized users have permission to view the identity.
- Review Permissions: Review the IAM (Identity and Access Management) policies associated with your AWS account to ensure that only authorized users have access to SES identities.
- Enable Email Sending Authorization: To further secure your SES identities, consider enabling email sending authorization. This will require senders to verify their identities before sending emails through SES.
- Monitor and Audit: Regularly monitor your SES identities for any unauthorized access or changes. Set up CloudWatch alarms to alert you of any suspicious activity.
- Educate Users: Educate your team members on best practices for securing AWS resources, including SES identities, to prevent accidental exposure.
Using CLI
Using CLI
To remediate the exposure of AWS SES identities, you can follow these steps using the AWS CLI:Replace Repeat the above steps for each exposed identity to remediate the misconfiguration and secure your AWS SES identities.
- List SES Identities: First, you need to list all the identities (email addresses or domains) that are currently exposed. Run the following command in your terminal:
- Update Identity Policy: For each identity that is exposed, you need to update the identity policy to restrict access to only authorized users. You can create a new policy document to restrict access. Here is an example policy that allows only the SES service to access the identity:
- Update Identity Policy: Update the identity policy using the following command:
example.com with the actual identity (email address or domain) and policy.json with the file containing the policy document.- Verify Changes: Verify that the policy has been updated successfully by running the following command:
Using Python
Using Python
To remediate the misconfiguration of AWS SES Identities being exposed, you can follow these steps using Python:Replace
- Identify Exposed Identities: First, you need to identify the exposed identities in your AWS SES configuration. This can be done by listing all the identities (email addresses or domains) that are currently exposed.
- Update IAM Policies: Modify the IAM policies associated with the AWS SES service to restrict access to only authorized users or roles. You can create a new IAM policy that allows only specific actions on SES identities and attach it to the appropriate IAM users or roles.
- Use Boto3 Library: Boto3 is the AWS SDK for Python, which allows you to interact with AWS services using Python scripts. You can use Boto3 to update the IAM policies associated with SES identities.
- Example Python Script:
'your_identity_here' with the actual identity that needs to be protected. The above script denies the ses:SendEmail and ses:SendRawEmail actions for all principals except the authorized ones.- Test the Remediation: After updating the IAM policies, test the configuration by trying to access the SES identities with unauthorized credentials. You should receive an error message indicating the denial of access.