: If a server fetches this URL and returns the response to an attacker, it could leak a highly privileged identity token. This token could then be used to access other cloud resources (like storage buckets or databases) as the server itself. Breakdown of the URL Components 169.254.169.254 : The standard Link-Local Address
: The IMDS responds with a valid JWT (JSON Web Token). : If a server fetches this URL and
: If the application displays the "response" of the webhook (common in debugging tools), the attacker now has a functional access token. : If the application displays the "response" of
Since SSRF originates from within the server, it can reach endpoints protected by perimeter firewalls. This effectively turns the ... Resecurity Azure SSRF with Workflow Designer Feature : If a server fetches this URL and
Attackers cannot directly talk to 169.254.169.254 from their laptop. That IP is blocked by the internet. But if your application has a vulnerability, attackers can trick your server into making the request for them.
: The VM then uses this token to authenticate with other services, typically by including it in an Authorization header of subsequent HTTP requests.