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

The IP address 169.254.169.254 is a link-local address. It is accessible only from within the running cloud instance. IMDSv1 Vulnerabilities

TOKEN="" TOKEN_EXPIRY=0

Thus, the raw command is:

curl -H "X-aws-ec2-metadata-token: $TOKEN" \ http://169.254.169.254/latest/meta-data/iam/security-credentials/ curl-url-http-3A-2F-2F169.254.169.254-2Flatest-2Fapi-2Ftoken

Transition away from IMDSv1 completely. You can modify existing instances or enforce this via AWS Policies globally so that instances will reject any requests that do not use the /latest/api/token flow.

http://169.254.169.254/latest/api/token

In the past (IMDSv1), metadata was accessible via a simple GET request. While convenient, this was vulnerable to attacks. If an attacker could trick a web application into making a request to that internal IP, they could steal sensitive IAM credentials. The IP address 169

The feature, in this case, relates to:

Security teams must monitor and enforce IMDSv2 across all cloud environments. Preventing SSRF

Here are real‑world snippets you can run on an EC2 instance. You can modify existing instances or enforce this

Understanding the AWS IMDSv2 Token Request URL: Securing Cloud Metadata

To get a token, your application must issue an HTTP PUT request to the /latest/api/token endpoint. This request must also include a custom header defining how long the token should remain valid, in seconds. Here is the standard curl command to acquire the token:

The specific notation provided in the prompt— curl-url-http-3A-2F-2F... —highlights how these endpoints are often represented in logs, documentation, or attack payloads.