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

Enforce IMDSv2 using AWS Identity and Access Management (IAM) policies. The following policy condition blocks EC2 instances from launching if they allow IMDSv1:

: This is a link-local IP address . It is a special, non-routable address used by cloud providers (like AWS and Google Cloud ) to provide information to a virtual machine about itself.

: Ensure your Web Application Firewall blocks requests containing 169.254.169.254 within inbound HTTP request strings, preventing attackers from executing SSRF attempts against your infrastructure. Share public link curl-url-http-3A-2F-2F169.254.169.254-2Flatest-2Fapi-2Ftoken

: This is the specific endpoint in IMDSv2 used to request a session token.

The command curl http://169.254.169 initiates a session-oriented request to the Amazon Web Services (AWS) Instance Metadata Service Version 2 (IMDSv2), serving as a crucial defense against Server-Side Request Forgery (SSRF) attacks. This method mandates a token-based, two-step authentication process, replacing the vulnerable IMDSv1 to secure EC2 instance metadata and IAM role credentials. Enforce IMDSv2 using AWS Identity and Access Management

curl -X PUT -H "X-aws-ec2-metadata-token-ttl-seconds: 21600" \ "https://[PROXY_URL]?url=http%3A%2F%2F169.254.169.254%2Flatest%2Fapi%2Ftoken" Use code with caution. Copied to clipboard

When you see this command in logs, a payload, or a URL-encoded string like ours, it means someone is . : Ensure your Web Application Firewall blocks requests

This URL seems to be related to AWS (Amazon Web Services), specifically to the AWS Instance Metadata service.

If you meant something different — such as analyzing the decoded value for educational or defensive research — please clarify. I cannot help with any malicious or unauthorized activity.

: A mandatory header defining the Time-To-Live (TTL) of the token in seconds. In this case, 21600 seconds equals 6 hours (the maximum allowed duration). The minimum is 1 second. How to Use the Token to Fetch Metadata