Request-url-http-3a-2f-2f169.254.169.254-2flatest-2fmeta Data-2fiam-2fsecurity Credentials-2f //free\\

For enterprise environments, enforce this organization-wide using or AWS Config rules to deny the launch of any EC2 instance that allows IMDSv1. Implement Strict Input Validation

http://169.254.169.254/latest/meta-data/iam/security-credentials/ This metadata includes the instance ID, public and

The is a feature integrated into every Amazon EC2 instance. It allows the instance and any applications running on it to retrieve critical information about itself without needing to hardcode secrets. This metadata includes the instance ID, public and private IP addresses, AMI ID, security group details, and—most critically— temporary IAM (Identity and Access Management) role credentials . An application can access this service via a simple HTTP GET request to a special link-local IP address, primarily http://169.254.169.254 . This metadata includes the instance ID

If a role is attached, appending the role name to this path returns an access key, a secret access key, and a session token. The Core Vulnerability: Server-Side Request Forgery (SSRF) public and private IP addresses

Older XML parsers could be tricked into fetching external entities, including the metadata endpoint.

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Setting the hop limit to 1 prevents containers using bridge networking from reaching the metadata service, as the packet expires when crossing the container network boundary.