Fetch-url-http-3a-2f-2f169.254.169.254-2flatest-2fmeta Data-2fiam-2fsecurity Credentials-2f Official

Securing your environment against IMDS exploitation requires a multi-layered defense-in-depth approach. 1. Enforce AWS IMDSv2

Beyond cloud metadata, the same SSRF technique can target internal Redis, Memcached, or Docker daemons (e.g., http://127.0.0.1:2375/containers/json ). So defending against this specific URL also improves your overall network security posture. So defending against this specific URL also improves

Understanding SSRF and the AWS Instance Metadata Service The string fetch-url-http-3A-2F-2F169.254.169.254-2Flatest-2Fmeta data-2Fiam-2Fsecurity credentials-2F represents a URL-encoded payload designed to exploit Server-Side Request Forgery (SSRF) vulnerabilities [1]. : Never trust user-supplied URLs.

AWS introduced to combat SSRF. IMDSv2 requires session‑oriented requests: a PUT request to obtain a token, which must then be used as a header in subsequent GET s. SSRF attacks that only perform simple GET requests (like most file_get_contents or curl without custom headers) will fail. or Docker daemons (e.g.

http://169.254.169.254/latest/meta-data/iam/security-credentials/MyRole

Fix the root cause of the SSRF vulnerability within your application code. : Never trust user-supplied URLs.