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

The IP address is a link-local address used by AWS to provide the Instance Metadata Service (IMDS) . Every EC2 instance can query this address to retrieve information about itself—such as its instance ID, public IP, IAM role credentials, and security groups—without needing to call the AWS API externally. The Evolution: From IMDSv1 to IMDSv2

: Standard WAFs are better at blocking complex PUT requests than simple GET requests. curl-url-http-3A-2F-2F169.254.169.254-2Flatest-2Fapi-2Ftoken

: IMDSv2 requires a PUT request to ensure that simple GET-based SSRF vulnerabilities cannot trigger a token generation. The IP address is a link-local address used