Curl-url-http-3a-2f-2f169.254.169.254-2flatest-2fapi-2ftoken ^hot^

The raw string is a URL-encoded version of a standard system administration command. When you decode the special characters, the structure becomes clear: decodes to a colon ( : ) 2F decodes to a forward slash ( / )

: Pass that token in an HTTP header ( X-aws-ec2-metadata-token ) during subsequent GET requests. Breaking Down the Command curl-url-http-3A-2F-2F169.254.169.254-2Flatest-2Fapi-2Ftoken

To ensure your infrastructure handles metadata requests securely, implement the following guardrails: The raw string is a URL-encoded version of

IMDSv2 tokens use an IP hop limit (TTL) of 1 by default. This ensures that the token cannot travel outside the EC2 instance if it accidentally passes through a container network bridge or misconfigured local proxy. Best Practices for AWS Administrators This ensures that the token cannot travel outside

Once the token is securely stored in the $TOKEN variable, it is used to retrieve the actual metadata:

: IMDSv2 strictly requires a PUT request to generate a token. This prevents simple SSRF attacks, as most basic SSRF vulnerabilities only allow GET requests.