To "prepare a post" regarding this specific callback URL string, it is important to recognize that this is a classic signature for a Server-Side Request Forgery (SSRF) attack targeting the AWS Instance Metadata Service (IMDS).
The client then includes that token in a custom HTTP header for all subsequent GET requests. To "prepare a post" regarding this specific callback
The security community has long recognized the danger of "open" metadata access. Historically, IMDSv1 relied on a simple GET request, which made it highly susceptible to SSRF because many application vulnerabilities (like basic URL redirects) could easily trigger a GET call. If you use IAM roles (recommended), stop/terminate the
This specific subject line indicates a Server-Side Request Forgery (SSRF) attack attempt targeting AWS Instance Metadata Service (IMDS). The attacker is trying to trick an application into making a request to an internal IP address to leak sensitive cloud security credentials. Executive Summary If you use IAM roles (recommended)